OrganismsChemicals and DrugsPhenomena and Processes
AcetyleneNitrogenaseEthaneNitrogen FixationAlkynesTungstenAzotobacterNitrosomonasHydrocarbons, AcyclicEthylenesMolybdoferredoxinNitrous OxideHydrogenDeltaproteobacteriaOxidation-ReductionAzotobacter vinelandiiMethaneMolybdenumSpirillumPropaneAmmoniaNitrogen
Acetylene
Nitrogenase
An enzyme system that catalyzes the fixing of nitrogen in soil bacteria and blue-green algae (CYANOBACTERIA). EC 1.18.6.1.
Ethane
Nitrogen Fixation
The process in certain BACTERIA; FUNGI; and CYANOBACTERIA converting free atmospheric NITROGEN to biologically usable forms of nitrogen, such as AMMONIA; NITRATES; and amino compounds.
Alkynes
Hydrocarbons with at least one triple bond in the linear portion, of the general formula Cn-H2n-2.
Tungsten
Tungsten. A metallic element with the atomic symbol W, atomic number 74, and atomic weight 183.85. It is used in many manufacturing applications, including increasing the hardness, toughness, and tensile strength of steel; manufacture of filaments for incandescent light bulbs; and in contact points for automotive and electrical apparatus.
Azotobacter
A genus of gram-negative, aerobic bacteria found in soil and water. Its organisms occur singly, in pairs or irregular clumps, and sometimes in chains of varying lengths.
Nitrosomonas
A genus of gram-negative, ellipsoidal or rod-shaped bacteria whose major source of energy and reducing power is from the oxidation of ammonia to nitrite. Its species occur in soils, oceans, lakes, rivers, and sewage disposal systems.
Hydrocarbons, Acyclic
Organic compounds composed exclusively of carbon and hydrogen where no carbon atoms join to form a ring structure.
Ethylenes
Derivatives of ethylene, a simple organic gas of biological origin with many industrial and biological use.
Molybdoferredoxin
A non-heme iron-sulfur protein isolated from Clostridium pasteurianum and other bacteria. It is a component of NITROGENASE, which is active in nitrogen fixation, and consists of two subunits with molecular weights of 59.5 kDa and 50.7 kDa, respectively.
Nitrous Oxide
Nitrogen oxide (N2O). A colorless, odorless gas that is used as an anesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream.
Hydrogen
The first chemical element in the periodic table. It has the atomic symbol H, atomic number 1, and atomic weight [1.00784; 1.00811]. It exists, under normal conditions, as a colorless, odorless, tasteless, diatomic gas. Hydrogen ions are PROTONS. Besides the common H1 isotope, hydrogen exists as the stable isotope DEUTERIUM and the unstable, radioactive isotope TRITIUM.
Deltaproteobacteria
A group of PROTEOBACTERIA represented by morphologically diverse, anaerobic sulfidogens. Some members of this group are considered bacterial predators, having bacteriolytic properties.
Oxidation-Reduction
A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471).
Azotobacter vinelandii
A species of gram-negative, aerobic bacteria first isolated from soil in Vineland, New Jersey. Ammonium and nitrate are used as nitrogen sources by this bacterium. It is distinguished from other members of its genus by the ability to use rhamnose as a carbon source. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
Methane
The simplest saturated hydrocarbon. It is a colorless, flammable gas, slightly soluble in water. It is one of the chief constituents of natural gas and is formed in the decomposition of organic matter. (Grant & Hackh's Chemical Dictionary, 5th ed)
Molybdenum
A metallic element with the atomic symbol Mo, atomic number 42, and atomic weight 95.94. It is an essential trace element, being a component of the enzymes xanthine oxidase, aldehyde oxidase, and nitrate reductase. (From Dorland, 27th ed)
Spirillum
A genus of gram-negative, curved and spiral-shaped bacteria found in stagnant, freshwater environments. These organisms are motile by bipolar tufts of flagella having a long wavelength and about one helical turn. Some species of Spirillum cause a form of RAT-BITE FEVER.
Propane
Ammonia
A colorless alkaline gas. It is formed in the body during decomposition of organic materials during a large number of metabolically important reactions. Note that the aqueous form of ammonia is referred to as AMMONIUM HYDROXIDE.
Nitrogen
An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.

Comparative phylogeny of rrs and nifH genes in the Bacillaceae. (1/323)

The rrs (16S rDNA) gene sequences of nitrogen-fixing endospore-forming bacilli isolated from the rhizosphere of wheat and maize were determined in order to infer their phylogenetic position in the Bacillaceae. These rhizosphere strains form a monophyletic cluster with Paenibacillus azotofixans, Paenibacillus polymyxa and Paenibacillus macerans. Two of them (RSA19 and TOD45) had previously been identified as Bacillus circulans (group 2) by phenotypic characterization (API 50CH). Evidence for nitrogen fixation by P. azotofixans, P. polymyxa, P. macerans and putative B. circulans strains RSA19 and TOD45 was provided by acetylene-reduction activity, and confirmed by amplifying and sequencing a nifH fragment (370 nt). The phylogenetic tree of nifH-derived amino acid sequences was compared to the phylogenetic tree of rrs sequences. All Paenibacillus nifH sequences formed a coherent cluster distinct from that of related nitrogen-fixing anaerobic clostridia and Gram-positive high-G+C-content frankiae. The nifH gene was neither detected in the B. circulans type strain (ATCC 4513T) nor in the type strains of Bacillus subtilis, Bacillus cereus, Bacillus alcalophilus, Bacillus simplex, Brevibacillus brevis and Paenibacillus validus. Accordingly, nitrogen fixation among aerobic endospore-forming Firmicutes seems to be restricted to a subset of species in the genus Paenibacillus.  (+info)

Evidence for involvement of gut-associated denitrifying bacteria in emission of nitrous oxide (N(2)O) by earthworms obtained from garden and forest soils. (2/323)

Earthworms (Aporrectodea caliginosa, Lumbricus rubellus, and Octolasion lacteum) obtained from nitrous oxide (N(2)O)-emitting garden soils emitted 0.14 to 0.87 nmol of N(2)O h(-1) g (fresh weight)(-1) under in vivo conditions. L. rubellus obtained from N(2)O-emitting forest soil also emitted N(2)O, which confirmed previous observations (G. R. Karsten and H. L. Drake, Appl. Environ. Microbiol. 63:1878-1882, 1997). In contrast, commercially obtained Lumbricus terrestris did not emit N(2)O; however, such worms emitted N(2)O when they were fed (i.e., preincubated in) garden soils. A. caliginosa, L. rubellus, and O. lacteum substantially increased the rates of N(2)O emission of garden soil columns and microcosms. Extrapolation of the data to in situ conditions indicated that N(2)O emission by earthworms accounted for approximately 33% of the N(2)O emitted by garden soils. In vivo emission of N(2)O by earthworms obtained from both garden and forest soils was greatly stimulated when worms were moistened with sterile solutions of nitrate or nitrite; in contrast, ammonium did not stimulate in vivo emission of N(2)O. In the presence of nitrate, acetylene increased the N(2)O emission rates of earthworms; in contrast, in the presence of nitrite, acetylene had little or no effect on emission of N(2)O. In vivo emission of N(2)O decreased by 80% when earthworms were preincubated in soil supplemented with streptomycin and tetracycline. On a fresh weight basis, the rates of N(2)O emission of dissected earthworm gut sections were substantially higher than the rates of N(2)O emission of dissected worms lacking gut sections, indicating that N(2)O production occurred in the gut rather than on the worm surface. In contrast to living earthworms and gut sections that produced N(2)O under oxic conditions (i.e., in the presence of air), fresh casts (feces) from N(2)O-emitting earthworms produced N(2)O only under anoxic conditions. Collectively, these results indicate that gut-associated denitrifying bacteria are responsible for the in vivo emission of N(2)O by earthworms and contribute to the N(2)O that is emitted from certain terrestrial ecosystems.  (+info)

Diversity in butane monooxygenases among butane-grown bacteria. (3/323)

Butane monooxygenases of butane-grown Pseudomonas butanovora, Mycobacterium vaccae JOB5, and an environmental isolate, CF8, were compared at the physiological level. The presence of butane monooxygenases in these bacteria was indicated by the following results. (i) O(2) was required for butane degradation. (ii) 1-Butanol was produced during butane degradation. (iii) Acetylene inhibited both butane oxidation and 1-butanol production. The responses to the known monooxygenase inactivator, ethylene, and inhibitor, allyl thiourea (ATU), discriminated butane degradation among the three bacteria. Ethylene irreversibly inactivated butane oxidation by P. butanovora but not by M. vaccae or CF8. In contrast, butane oxidation by only CF8 was strongly inhibited by ATU. In all three strains of butane-grown bacteria, specific polypeptides were labeled in the presence of [(14)C]acetylene. The [(14)C]acetylene labeling patterns were different among the three bacteria. Exposure of lactate-grown CF8 and P. butanovora and glucose-grown M. vaccae to butane induced butane oxidation activity as well as the specific acetylene-binding polypeptides. Ammonia was oxidized by all three bacteria. P. butanovora oxidized ammonia to hydroxylamine, while CF8 and M. vaccae produced nitrite. All three bacteria oxidized ethylene to ethylene oxide. Methane oxidation was not detected by any of the bacteria. The results indicate the presence of three distinct butane monooxygenases in butane-grown P. butanovora, M. vaccae, and CF8.  (+info)

Measurement of cardiac output during exercise by open-circuit acetylene uptake. (4/323)

Noninvasive measurement of cardiac output (QT) is problematic during heavy exercise. We report a new approach that avoids unpleasant rebreathing and resultant changes in alveolar PO(2) or PCO(2) by measuring short-term acetylene (C(2)H(2)) uptake by an open-circuit technique, with application of mass balance for the calculation of QT. The method assumes that alveolar and arterial C(2)H(2) pressures are the same, and we account for C(2)H(2) recirculation by extrapolating end-tidal C(2)H(2) back to breath 1 of the maneuver. We correct for incomplete gas mixing by using He in the inspired mixture. The maneuver involves switching the subject to air containing trace amounts of C(2)H(2) and He; ventilation and pressures of He, C(2)H(2), and CO(2) are measured continuously (the latter by mass spectrometer) for 20-25 breaths. Data from three subjects for whom multiple Fick O(2) measurements of QT were available showed that measurement of QT by the Fick method and by the C(2)H(2) technique was statistically similar from rest to 90% of maximal O(2) consumption (VO(2 max)). Data from 12 active women and 12 elite male athletes at rest and 90% of VO(2 max) fell on a single linear relationship, with O(2) consumption (VO(2)) predicting QT values of 9.13, 15.9, 22.6, and 29.4 l/min at VO(2) of 1, 2, 3, and 4 l/min. Mixed venous PO(2) predicted from C(2)H(2)-determined QT, measured VO(2), and arterial O(2) concentration was approximately 20-25 Torr at 90% of VO(2 max) during air breathing and 10-15 Torr during 13% O(2) breathing. This modification of previous gas uptake methods, to avoid rebreathing, produces reasonable data from rest to heavy exercise in normal subjects.  (+info)

Attributes of atmospheric carbon monoxide oxidation by Maine forest soils. (5/323)

CO, one of the most important trace gases, regulates tropospheric methane, hydroxyl radical, and ozone contents. Ten to 25% of the estimated global CO flux may be consumed by soils annually. Depth profiles for (14)CO oxidation and CO concentration indicated that CO oxidation occurred primarily in surface soils and that photooxidation of soil organic matter did not necessarily contribute significantly to CO fluxes. Kinetic analyses revealed that the apparent K(m) was about 18 nM (17 ppm) and the V(max) was 6.9 micromol g (fresh weight)(-1) h(-1); the apparent K(m) was similar to the apparent K(m) for atmospheric methane consumption, but the V(max) was more than 100 times higher. Atmospheric CO oxidation responded sensitively to soil water regimes; decreases in water content in initially saturated soils resulted in increased uptake, and optimum uptake occurred at water contents of 30 to 60%. However, extended drying led to decreased uptake and net CO production. Rewetting could restore CO uptake, albeit with a pronounced hysteresis. The responses to changing temperatures indicated that the optimum temperature for net uptake was between 20 and 25 degrees C and that there was a transition to net production at temperatures above 30 degrees C. The responses to methyl fluoride and acetylene indicated that populations other than ammonia oxidizers and methanotrophs must be involved in forest soils. The response to acetylene was notable, since the strong initial inhibition was reversed after 12 h of incubation; in contrast, methyl fluoride did not have an inhibitory effect. Ammonium did not inhibit CO uptake; the level of nitrite inhibition was initially substantial, but nitrite inhibition was reversible over time. Nitrite inhibition appeared to occur through indirect effects based on abiological formation of NO.  (+info)

Noninvasive cardiac output measurement in orthostasis: pulse contour analysis compared with acetylene rebreathing. (6/323)

We tested the reliability of noninvasive cardiac output (CO) measurement in different body positions by pulse contour analysis (CO(pc)) by using a transmission line model (K. H. Wesseling, B. De Wit, J. A. P. Weber, and N. T. Smith. Adv. Cardiol. Phys. 5, Suppl. II: 16-52, 1983). Acetylene rebreathing (CO(rebr)) was used as a reference method. Twelve subjects (age 21-34 yr) were studied: 1) six in whom CO(rebr) and CO(pc) were measured in the standing and 6 degrees head-down tilt (HDT) postures and 2) six in whom CO was measured in the 30 degrees HDT, supine, 30 degrees head up-tilt (HUT), and 70 degrees HUT postures on a tilt table. The CO(rebr)-to-CO(pc) ratio in (near) the supine position during rebreathing was used as the calibration factor for CO(pc) measurements. Calibrated CO(pc) (CO(cal sup)) consistently overestimated CO in the upright posture. The drop in CO with upright posture was underestimated by approximately 50%. CO(cal sup) and CO(rebr) values did not differ in the 30 degrees HDT position. Changes in the CO(rebr)-to-CO(pc) ratio are highly variable among subjects in response to a change in posture. Therefore, CO(pc) must be recalibrated for each subject in each posture.  (+info)

Two forms of nitrogenase from the photosynthetic bacterium Rhodospirillum rubrum. (7/323)

Acetylene reduction by nitrogenase from Rhodospirillum rubrum, unlike that by other nitrogenases, was recently found by other investigators to require an activation of the iron protein of nitrogenase by an activating system comprising a chromatophore membrane component, adenosine 5'-triphosphate (ATP), and divalent metal ions. In an extension of this work, we observed that the same activating system was also required for nitrogenase-linked H(2) evolution. However, we found that, depending on their nitrogen nutrition regime, R. rubrum cells produced two forms of nitrogenase that differed in their Fe protein components. Cells whose nitrogen supply was totally exhausted before harvest yielded predominantly a form of nitrogenase (A) whose enzymatic activity was not governed by the activating system, whereas cells supplied up to harvest time with N(2) or glutamate yielded predominantly a form of nitrogenase (R) whose enzymatic activity was regulated by the activating system. An unexpected finding was the rapid (less than 10 min in some cases) intracellular conversion of nitrogenase A to nitrogenase R brought about by the addition to nitrogen-starved cells of glutamine, asparagine, or, particularly, ammonia. This finding suggests that mechanisms other than de novo protein synthesis were involved in the conversion of nitrogenase A to the R form. The molecular weights of the Fe protein and Mo-Fe protein components from nitrogenases A and R were the same. However, nitrogenase A appeared to be larger in size, because it had more Fe protein units per Mo-Fe protein than did nitrogenase R. A distinguishing property of the Fe protein from nitrogenase R was its ATP requirement. When combined with the Mo-Fe protein (from either nitrogenase A or nitrogenase R), the R form of Fe protein required a lower ATP concentration but bound or utilized more ATP molecules during acetylene reduction than did the A form of Fe protein. No differences between the Fe proteins from the two forms of nitrogenase were found in the electron paramagnetic resonance spectrum, midpoint oxidation-reduction potential, or sensitivity to iron chelators.  (+info)

Measurement in vivo of hydrogenase-catalysed hydrogen evolution in the presence of nitrogenase enzyme in cyanobacteria. (8/323)

A method was devised that allows measurement in vivo of hydrogenase-catalysed H2 evolution from the cyanobacterium Anabaena cylindrica, independent of nitrogenase activity, which is also present. Addition of low concentrations of reduced Methyl Viologen (1-10mM) to intact heterocystous filaments of the organism resulted in H2 evolution, but produced conditions giving total inhibition of nitrogenase (acetylene-reducing and H2-evolving) activity. That the H2 formed under these conditions was not contributed to by nitrogenase was also supported by the observation that its rate of formation was similar in the dark or with Ar replaced by N2 in the gas phase, and also in view of the pattern of H2 evolution at very low Methyl Viologen concentrations. Conclusive evidence that the H2 formed in the presence of Methyl Viologen was solely hydrogenase-mediated was its evolution even from nitrogenase-free (non-heterocystous) cultures; by contrast 'uptake' hydrogenase activity in such cultures was greatly decreased. The hydrogenase activity was inhibited by CO and little affected by acetylene. Finally the hydrogenase activity was shown to be relatively constant at different stages during the batch growth of the organism, as opposed to nitrogenase activity, which varied.  (+info)

Coordination and adsorption of acetylene in the poly[(vinylcyclopentadienyl)manganese] membrane<...
TY - JOUR. T1 - Coordination and adsorption of acetylene in the poly[(vinylcyclopentadienyl)manganese] membrane. AU - Kawakami, Hiroyoshi. AU - Tsuda, Kenji. AU - Nishide, Hiroyuki. AU - Tsuchida, Eishun. PY - 1991/1/1. Y1 - 1991/1/1. N2 - A copolymer of (vinylcyclopentadienyl)dicarbonylmanganese (CpMn) and octyl methacrylate forms its acetylene-coordinated complex reversibly and stably in the solvent-free membrane state. Kinetic and equilibrium constants of the acetylene coordination to the CpMn residue in the copolymer membrane are determined spectroscopically in situ. The acetylene coordination parameters are much smaller than those of the corresponding nitrogen coordination. Acetylene transport for the membrane is expected to be selectively augmented due to the coordination of acetylene to the fixed CpMn. However, acetylene transport behavior is in accordance with total immobilization of acetylene on the CpMn residue in the acetylene permeation through the membrane.. AB - A copolymer of ...
https://waseda.pure.elsevier.com/ja/publications/coordination-and-adsorption-of-acetylene-in-the-polyvinylcyclopen
Coordination and adsorption of acetylene in the poly[(vinylcyclopentadienyl)manganese] membrane<...
TY - JOUR. T1 - Coordination and adsorption of acetylene in the poly[(vinylcyclopentadienyl)manganese] membrane. AU - Kawakami, Hiroyoshi. AU - Tsuda, Kenji. AU - Nishide, Hiroyuki. AU - Tsuchida, Eishun. PY - 1991/1/1. Y1 - 1991/1/1. N2 - A copolymer of (vinylcyclopentadienyl)dicarbonylmanganese (CpMn) and octyl methacrylate forms its acetylene-coordinated complex reversibly and stably in the solvent-free membrane state. Kinetic and equilibrium constants of the acetylene coordination to the CpMn residue in the copolymer membrane are determined spectroscopically in situ. The acetylene coordination parameters are much smaller than those of the corresponding nitrogen coordination. Acetylene transport for the membrane is expected to be selectively augmented due to the coordination of acetylene to the fixed CpMn. However, acetylene transport behavior is in accordance with total immobilization of acetylene on the CpMn residue in the acetylene permeation through the membrane.. AB - A copolymer of ...
https://waseda.pure.elsevier.com/en/publications/coordination-and-adsorption-of-acetylene-in-the-polyvinylcyclopen
DSpace at IIT Bombay: Electronic and vibrational spectroscopic investigation of phenylacetylene - Amine complexes. Evidence for...
Shifts in the electronic transitions for the complexes of phenylacetylene with ammonia, methylamine, and triethylamine clearly indicate the variation in the intermolecular structures of the three complexes. The infrared spectrum of phenylacetylene in the, acetylenic C-H stretching region shows Fermi resonance bands, which act as a sensitive tool to probe the intermolecular structures. The IR-UV double resonance spectra of the three complexes are disparate and signify the formation of distinct structures. The formation of C-H center dot center dot center dot N hydrogen-bonded complex with ammonia and two distinct types of c complexes with methylamine and triethylamine can be inferred from the analysis of electronic and vibrational spectra in combination with ab initio calculations. These complexes clearly point out the fact that marginal changes in the interacting partner can significantly alter the intermolecular structure ...
http://dspace.library.iitb.ac.in/jspui/handle/10054/3815
Professional HVAC Oxygen Acetylene Oxy Welding Cutting Torch Kit WithGas Tank
Professional HVAC Oxygen Acetylene Oxy Welding Cutting Torch Kit W/Gas Tank. Professional Portable Oxygen Acetylene Oxy Welding Cutting Torch Kit W/Gas Tank, Torch Cutting and Welding Portable Kit. Welding & Cutting Torch Kit Oxygen Acetylene With Portable Tote and Tanks. Complete gas-welding accessory kit includes a 4 liter oxygen tank and 2 liter acetylene tank with regulators, along with full brass torch assembly. Use this oxyacetylene torch for welding pipes and tubes, and other metal repair work. Its also used to fabricate metal artwork.. Use it for iron or steel welding, plus brazing, braze-welding, cutting, bending and forming. Welding & Cutting Torch Kit Oxygen Acetylene With Portable Tote and Oxy Acty Tanks. Extremely Popular for General Maintenance Work, Metal Sculpture, Automotive Repair, Air Conditioning, Refrigeration etc. Light to Medium Duty Portable Outfit. Waterproof Storage Compartment for Small Items. Rear entry regulators for better balance on the small cylinders. Material: ...
http://weldingcuttingtorch.com/professional-hvac-oxygen-acetylene-oxy-welding-cutting-torch-kit-withgas-tank.htm
acetylene gas/99.5% acetylene gas/oxyfuel gas/welding gas/ acetylene in acetone for sale of cgaschem
Buy acetylene gas/99.5% acetylene gas/oxyfuel gas/welding gas/ acetylene in acetone from China- quality Industrial gas for sale of cgaschem from China.
http://m.phrmg.org/pz62cfc6b-cz57d81fc-acetylene-gas-99-5-acetylene-gas-oxyfuel-gas-welding-gas-acetylene-in-acetone.html
Electronic Selectivity Tuning in Titanium(III)-Catalyzed Acetylene Cross-Dimerization Reactions<...Electronic Selectivity Tuning in Titanium(III)-Catalyzed Acetylene Cross-Dimerization Reactions<...
TY - JOUR. T1 - Electronic Selectivity Tuning in Titanium(III)-Catalyzed Acetylene Cross-Dimerization Reactions. AU - Oshovsky, Gennady V.. AU - Hessen, Bart. AU - Reek, Joost N. H.. AU - de Bruin, Bas. PY - 2011/11/28. Y1 - 2011/11/28. N2 - The reactivity of open-shell titanium(III) complexes in organometallic catalysis is associated with many open questions, in particular regarding the electronic structure of catalytic intermediates and transition states. The unpaired electron density in principle allows for radical-type reactivity, while at the same time empty d orbitals allow more traditional cis-coordination insertion pathways. In this paper we investigated the (Cp*)(2)Ti-III-catalyzed cross-dimerization of aliphatic and aromatic acetylenes, focusing on the reactivity of two different aliphatic acetylenes with a series of different aromatic acetylenes. The applied aliphatic acetylenes 1a (4-methylpent-1-yne) and 1b (N,N-dimethyl-N-propargylamine) have the same size but different ...
https://research.rug.nl/en/publications/electronic-selectivity-tuning-in-titaniumiii-catalyzed-acetylene-
Acetylenes | Article about acetylenes by The Free DictionaryAcetylenes | Article about acetylenes by The Free Dictionary
Looking for acetylenes? Find out information about acetylenes. or , HC≡CH, a colorless gas. It melts at −80.8°C; and boils at −84.0°C;. Offensive odors often noted in commercial acetylene are due to impurities.... Explanation of acetylenes
http://encyclopedia2.thefreedictionary.com/acetylenes
Palladium-Catalyzed Addition and Carbonylative Addition of Diaryl Disulfides and Diselenides to Terminal Acetylenes -...Palladium-Catalyzed Addition and Carbonylative Addition of Diaryl Disulfides and Diselenides to Terminal Acetylenes -...
Fingerprint Dive into the research topics of Palladium-Catalyzed Addition and Carbonylative Addition of Diaryl Disulfides and Diselenides to Terminal Acetylenes. Together they form a unique fingerprint. ...
https://scholar.nctu.edu.tw/en/publications/palladium-catalyzed-addition-and-carbonylative-addition-of-diaryl/fingerprints/
Measurement of cardiac output during exercise by open-circuit acetylene uptake<...
TY - JOUR. T1 - Measurement of cardiac output during exercise by open-circuit acetylene uptake. AU - Barker, Rebecca C.. AU - Hopkins, Susan R.. AU - Kellogg, Nancy. AU - Olfert, I. Mark. AU - Brutsaert, Tom D. AU - Gavin, Timothy P.. AU - Entin, Pauline L.. AU - Rice, Anthony J.. AU - Wagner, Peter D.. PY - 1999/10. Y1 - 1999/10. N2 - Noninvasive measurement of cardiac output (Q̇T) is problematic during heavy exercise. We report a new approach that avoids unpleasant rebreathing and resultant changes in alveolar PO2 or PCO2 by measuring short-term acetylene (C2H2) uptake by an open-circuit technique, with application of mass balance for the calculation of Q̇T. The method assumes that alveolar and arterial C2H2 pressures are the same, and we account for C2H2 recirculation by extrapolating end-tidal C2H2 back to breath 1 of the maneuver. We correct for incomplete gas mixing by using He in the inspired mixture. The maneuver involves switching the subject to air containing trace amounts of C2H2 ...
https://experts.syr.edu/en/publications/measurement-of-cardiac-output-during-exercise-by-open-circuit-ace
LU|ZONE|UL @ Laurentian University: Cross-linked polymers of phenylacetylene and 1,3-diethynylbenzene: new polymer precursors...LU|ZONE|UL @ Laurentian University: Cross-linked polymers of phenylacetylene and 1,3-diethynylbenzene: new polymer precursors...
The increasing threats of global warming, rapid depletion of fossil fuels, and increasing energy demands are driving an enormous amount of research into clean renewable sources of energy, flue gas capture technologies, and environmentally friendly energy storage devices, to name a few. Activated carbons present a multipurpose material commonly used in many of these increasingly popular green technologies. A wide range of cross-linked acetylenic polymers of phenylacetylene and 1,3- diethynylbenzene were synthesized and investigated in this thesis to generate materials for electrochemical double layer capacitors, CO2 capture, and hydrogen storage. Chemical activation of the copolymers in the presence of KOH was shown to produce highly microporous carbons with various textural properties. The specific cross-linking densities of the polymer precursors prior to carbonization were shown to greatly affect the carbon yield, surface area, pore volumes and pore sizes of the carbons produced. ...
https://zone.biblio.laurentian.ca/handle/10219/2296
Acetylene - Deep webAcetylene - Deep web
Acetylene is not especially toxic, but when generated from calcium carbide, it can contain toxic impurities such as traces of phosphine and arsine, which give it a distinct garlic-like smell. It is also highly flammable, as are most light hydrocarbons, hence its use in welding. Its most singular hazard is associated with its intrinsic instability, especially when it is pressurized: under certain conditions acetylene can react in an exothermic addition-type reaction to form a number of products, typically benzene and/or vinylacetylene, possibly in addition to carbon and hydrogen.[citation needed] Consequently, acetylene, if initiated by intense heat or a shockwave, can decompose explosively if the absolute pressure of the gas exceeds about 200 kilopascals (29 psi). Most regulators and pressure gauges on equipment report gauge pressure, and the safe limit for acetylene therefore is 101 kPagage, or 15 psig.[42][43] It is therefore supplied and stored dissolved in acetone or dimethylformamide ...
https://search.deepweb.to/wiki/Carbide_gas
Synthesis of new vinylsilanes containing an asymmetric silicon via platinum catalyzed hydrosilylation of acetylene and...
TY - JOUR. T1 - Synthesis of new vinylsilanes containing an asymmetric silicon via platinum catalyzed hydrosilylation of acetylene and monosubstituted alkynes. AU - Gevorgyan, Vladimir. AU - Borisova, Larisa. AU - Popelis, Juris. AU - Lukevics, Edmunds. AU - Foltynowicz, Zenon. AU - Gulinski, Jacek. AU - Marciniec, Bogdan. PY - 1992/2/4. Y1 - 1992/2/4. N2 - A series of new racemic vinylsilanes has been obtained by hydrosilylation reaction of acetylene and monosubstituted alkynes with (±)-α-NpPhMeSiH and (±)-N(CH2CH2O)3SiCH2PhMeSiH in the presence of platinum-containing catalysts.. AB - A series of new racemic vinylsilanes has been obtained by hydrosilylation reaction of acetylene and monosubstituted alkynes with (±)-α-NpPhMeSiH and (±)-N(CH2CH2O)3SiCH2PhMeSiH in the presence of platinum-containing catalysts.. UR - http://www.scopus.com/inward/record.url?scp=0002291907&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0002291907&partnerID=8YFLogxK. U2 - ...
https://utsouthwestern.pure.elsevier.com/en/publications/synthesis-of-new-vinylsilanes-containing-an-asymmetric-silicon-vi
Buy Carbon Black Acetylene Black Powder Price,Size,Weight,Model,Width -Okorder.comBuy Carbon Black Acetylene Black Powder Price,Size,Weight,Model,Width -Okorder.com
Buy Carbon Black Acetylene Black Powder, Find Details include Size,Weight,Model and Width about Carbon Black Acetylene Black Powder. Make an Inquiry for Carbon Black Acetylene Black Powder at OKorder.com.
http://www.okorder.com/p/carbon-black-acetylene-black-powder_530277.html
Nanomaterials | Free Full-Text | Acetylene Gas-Sensing Properties of Layer-by-Layer Self-Assembled Ag-Decorated Tin Dioxide...Nanomaterials | Free Full-Text | Acetylene Gas-Sensing Properties of Layer-by-Layer Self-Assembled Ag-Decorated Tin Dioxide...
This paper demonstrates an acetylene gas sensor based on an Ag-decorated tin dioxide/reduced graphene oxide (Ag-SnO2/rGO) nanocomposite film, prepared by layer-by-layer (LbL) self-assembly technology. The as-prepared Ag-SnO2/rGO nanocomposite was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and Raman spectrum. The acetylene sensing properties were investigated using different working temperatures and gas concentrations. An optimal temperature of 90 °C was determined, and the Ag-SnO2/rGO nanocomposite sensor exhibited excellent sensing behaviors towards acetylene, in terms of response, repeatability, stability and response/recovery characteristics, which were superior to the pure SnO2 and SnO2/rGO film sensors. The sensing mechanism of the Ag-SnO2/rGO sensor was attributed to the synergistic effect of the ternary nanomaterials, and the heterojunctions created at the interfaces between SnO2 and rGO. This work indicates that the Ag
http://www.mdpi.com/2079-4991/7/9/278/htm
Microbiology Society Journals | Pseudomonas azotifigens sp. nov., a novel nitrogen-fixing bacterium isolated from a compost pileMicrobiology Society Journals | Pseudomonas azotifigens sp. nov., a novel nitrogen-fixing bacterium isolated from a compost pile
A nitrogen-fixing bacterium, designated strain 6H33bT, was isolated from a compost pile in Japan. The nitrogenase activity of this strain was detected based on its acetylene-reducing activity under low oxygen concentrations (2-4 %). An analysis of the genes responsible for nitrogen fixation in this strain, nifH and nifD, indicated a close relationship to those of Pseudomonas stutzeri A15 (A1501). Sequence similarity searches based on the 16S rRNA gene sequences showed that strain 6H33bT belongs within the genus Pseudomonas sensu stricto; closest similarity was with Pseudomonas indica (97·3 %). A comparison of several taxonomic characteristics of 6H33bT with those of P. indica and some type strains of the genus Pseudomonas sensu stricto indicated that 6H33bT could be distinguished from P. indica based on the presence of nitrogen fixation ability, the absence of nitrate reduction and denitrification abilities and the utilization of some sugars and organic acids. Phylogenetic analyses and the results of
http://ijs.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.63586-0
Temperature and concentration measurements in acetylene-nitrogen mixtures in the range 300-600 K using dual-broadband...Temperature and concentration measurements in acetylene-nitrogen mixtures in the range 300-600 K using dual-broadband...
article{2da3f822-7032-422c-900e-e4a29654ecd9, abstract = {,p,Pure rotational coherent anti-Stokes Raman scattering (CARS) experiments have been performed in acetylene for temperatures ranging from 294 to 582 K, and in mixtures of acetylene and nitrogen in the mole fraction range of 0.06-0.32 for acetylene at room temperature. The experimental spectra are evaluated by a least-square fitting to libraries of theoretically calculated spectra using two different Raman linewidth models, one with and one without dependence on the rotational quantum number J. It is found that a J-dependent model is favourable, both regarding temperature measurements in pure acetylene, and simultaneous acetylene concentration and temperature measurements in different mixtures of acetylene and nitrogen. For the temperature measurements performed in pure acetylene the temperature inaccuracy is generally less than 2% when the J-dependent model for the Raman linewidths is used. It is found that fitting the value of the ...
https://lup.lub.lu.se/search/publication/2da3f822-7032-422c-900e-e4a29654ecd9
Central Operations - Substations and Steam | NCCRSCentral Operations - Substations and Steam | NCCRS
Course 1 and 2, Version 1: Upon successful completion of the course, students will be able to: set up and test oxygen and acetylene cylinders and accessory equipment; perform basic cutting; cut freehand, guide and bevel; identify all safety regulations for cutting and welding; identify common causes and types of boiler tube failure; and perform tube repairs and tube rolling procedures. Course 1 and 2: Version 2 and Course 1 and 2: Version 3: Same as Version 1; in addition: demonstrate proper transporation and securement methods for oxygen and acetylene cylinders; demonstrate inspection requirements for oxygen and acetylene; state the normal pressure for oxygen and acetylene cylinders; describe the construction of oxygen and acetylene cylinders; identify the parts of oxygen and acetylene regulators; describe the function and operation of fusible plugs in acetylene cylinders and safety discs in oxygen cylinders; select the appropriate cutting tip for the application; demonstrate how to adjust ...
http://www.nationalccrs.org/course-categories/central-operations-substations-and-steam
AppB.4.3.3.5AppB.4.3.3.5
B.4.3.3.5 Physisorption and Desorption of Nonsolvent Molecules. Since there is one acetylene molecule for every ~59 n-octane molecules in the hydrocarbon feedstock solution, the possible physisorption of solvated acetylene molecules from the external solvent bath to the piston cavity passivated diamond walls must also be evaluated. Experiments [3189] on the physisorption of acetylene on the diamond C(111)-H(1x1) surface from gas phase show that the C2H2 molecule adsorbs nearly flat on terraces but is slightly tilted on defect sites, covering four surface hydrogens. This in-plane orientation of the acetylene monolayer is not unexpected because C2H2 has high p electron density around the C=C triple bond, the most energetically favorable position to be attacked by hydrogen-containing species to form a hydrogen bond, and because electrostatic interactions also favor the horizontal orientation of C2H2 on the diamond surface.. Will n-octane or acetylene be preferentially adsorbed on the passivated ...
http://www.molecularassembler.com/KSRM/AppB.4.3.3.5.htm
H CC 9.5 Acidity of Acetylene and Terminal Alkynes. - ppt downloadH CC 9.5 Acidity of Acetylene and Terminal Alkynes. - ppt download
Acetylene is a weak acid, but not nearly as weak as alkanes or alkenes. CompoundpK a HF3.2 H 2 O16 NH CH 4 60 H2CH2CH2CH2C CH 2 HCCH 26 Acetylene
http://slideplayer.com/slide/4385380/
Acetylene Plants Delhi Plant & Machinery, Engineering Equipment, Goods & SuppliesAcetylene Plants Delhi Plant & Machinery, Engineering Equipment, Goods & Supplies
Acetylene Plants - Suppliers Manufacturers Wholesalers of Acetylene Gas Plant Plant & Machinery, Engineering Equipment, Goods & Supplies
http://www.eindiabusiness.com/company/140479/acetylene-plants-universal-industrial-plants.html
Global Acetylene Gas Market Professional Survey Report 2016 : ReportsnReports
[116 Pages Report] Check for Discount on Global Acetylene Gas Market Professional Survey Report 2016 report by QYResearch Group. Notes: Production, means the output of Acetylene Gas Revenue, means...
http://www.reportsnreports.com/reports/662883-global-acetylene-gas-market-professional-survey-report-2016.html
Air/Acetylene Filter Assembly | PerkinElmer
Air/Acetylene Filter Assembly from PerkinElmer. An essential item from our extensive line of Air, Acetylene and Water Filters for 3100 Spectrometer.
http://www.perkinelmer.de/product/air-acetylene-filter-assy-n9301398
acetylene - English to Bengali Meaning of acetylene - bdword.comacetylene - English to Bengali Meaning of acetylene - bdword.com
acetylene - Meaning in Bengali, what is meaning of common in Bengali dictionary, audio pronunciation, synonyms and definitions of common in Bengali and English.
https://www.bdword.com/?q=acetylene
1-Phenyl-2-(trimethylsilyl)-acetylene (CAS 2170-06-1) Market Research Report 20181-Phenyl-2-(trimethylsilyl)-acetylene (CAS 2170-06-1) Market Research Report 2018
The report generally describes 1-phenyl-2-(trimethylsilyl)-acetylene, examines its uses, production methods, patents. 1-Phenyl-2-(trimethylsilyl)-acetylene
https://marketpublishers.com/report/industry/chemicals_petrochemicals/1-phenyl-2-_trimethylsilyl_acetylene_2170-06-1_market_research_report.html
Team:WashU StLouis - 2013.igem.orgTeam:WashU StLouis - 2013.igem.org
Team WashU_StLouis The production of a bio-fertilizer could benefit the agricultural industry by decreasing the need for energy intensive nitrogen fixation processes. The nif cluster of Cyanothece 51142 consists of 29 genes that construct and regulate a nitrogenase protein complex, which catalyzes the fixation of atmospheric nitrogen. This year, our iGEM team aims to harness the power of nif to produce ammonia in Escherichia coli. After synthesizing a nif- containing plasmid (34 kbp) using the DNA assembler method (Shao et al 2009) and transforming that plasmid into E. coli, our team tested for nitrogenase activity using the acetylene reduction assay. The transformed E. coli were then compared to wild-type under limited nitrogen conditions to check for a competitive advantage. Future tests will evaluate the expression of various nitrogenase subunits, such as nifD and nifK. Our team also aims to further characterize the promoter sequences of the Cyanothece 51142 nif cluster. Between the cysE and ...
http://2013.igem.org/wiki/index.php?title=Team:WashU_StLouis&oldid=62145
Fixation on Ice: August 2016Fixation on Ice: August 2016
Sampling days in the field have been long yet extremely productive. We have collected nitrogen fixation data on primary producers found in four streams with varying temperatures. We can calculate the rate that primary producers are fixing nitrogen using a technique called Acetylene Reduction Assay or ARA. This is one method of measuring fixation which allows us to compare how rates of fixation change across a temperature gradient. You may be thinking Whoa! Back up. What is this girl talking about? Let me explain. Some primary producers, for example, one of my favorites, Nostoc Pink, can take nitrogen gas (N2), which is abundant in the air, and utilize the nitrogen for growth and other critical cellular processes. But for the organism to use the nitrogen from N2 gas, it must be converted into a usable form of nitrogen. One particular enzyme known as nitrogenase allows for some organisms to be able to do just that! This enzyme breaks the bonds in N2 gas, or as we call it, fixes N2 gas, and ...
http://fixationonice.blogspot.com/2016/08/
Carbon Dioxide Plants - Acetylene Gas Plant Manufacturer from Vadodara
Manufacturer of Carbon Dioxide Plants - Acetylene Gas Plant, Calcium Chloride Based Recovery Plant, Carbon Dioxide Based Brewery Plant and Carbon Dioxide Production Plant offered by Bosco India, Vadodara, Gujarat.
https://www.bosco2india.com/carbon-dioxide-plants.html
Gas Equipment Market by Industrial Gas (Atmospheric, Hydrogen, Acetylene, Helium), Type (Gas delivery, Regulators, Purifiers &...Gas Equipment Market by Industrial Gas (Atmospheric, Hydrogen, Acetylene, Helium), Type (Gas delivery, Regulators, Purifiers &...
Gas Equipment Market by Industrial Gas (Atmospheric, Hydrogen, Acetylene, Helium), Type (Gas delivery, Regulators, Purifiers & filters, Flow devices, Gas generation, Cryogenics, Gas detection), Process - Market research report and industry analysis - 10039537
https://www.marketresearch.com/MarketsandMarkets-v3719/Gas-Equipment-Industrial-Atmospheric-Hydrogen-10039537/
A crossed beam investigation of the reactions of tricarbon molecules, C(3)(X(1)Sigma(+)(g)),with acetylene, C(2)H(2)(X(1)Sigma(...A crossed beam investigation of the reactions of tricarbon molecules, C(3)(X(1)Sigma(+)(g)),with acetylene, C(2)H(2)(X(1)Sigma(...
A crossed beam investigation of the reactions of tricarbon molecules, C(3)(X(1)Sigma(+)(g)),with acetylene, C(2)H(2)(X(1)Sigma(+)(g)), ethylene, C(2)H(4)(X(1)A(g)), and benzene, C(6)H(6)(X(1)A(1g)) Article ...
https://scholars.fiu.edu/display/pub-000251575300009
Acetylene vessel filler composition - Patent # 4129450 - PatentGenius
An aqueous slurry composition which is curable at saturated steam pressure and temperature of 360.degree. to 400.degree. F to form a hard porous mass suitable for containing dissolved acetylene gas solutions, comprising lime, crystalline silica, and a thickening agent selected from the group consisting of (a) polyethylene oxide, (b) amorphous glassy silica, (c) a soluble salt of phosphate and a soluble salt of calcium and (d) a soluble salt of phosphate and a neutralizing acid.
http://www.patentgenius.com/patent/4129450.html
Light-Duty Oxygen & Acetylene Cutting Gas Regulator | Welding PartnersLight-Duty Oxygen & Acetylene Cutting Gas Regulator | Welding Partners
Light-duty acetylene gas regulator heavy duty compatible with Victor SR460-510. Single stage construction. Machined brass body & housing cap. Great Reviews!
https://weldingpartners.com/products/gas-regulators-light-duty
Acetylene Gas, Its Nature, Properties and Uses; Also Calcium Carbide, Its Composition, Properties…, Book by George Frederick...Acetylene Gas, Its Nature, Properties and Uses; Also Calcium Carbide, Its Composition, Properties…, Book by George Frederick...
Buy the Hardcover Book Acetylene Gas, Its Nature, Properties and Uses; Also Calcium Carbide, Its Composition, Properties… by George Frederick Thompson at Indigo.ca, Canadas largest bookstore. + Get Free Shipping on History books over $25!
https://www.chapters.indigo.ca/en-ca/books/acetylene-gas-its-nature-properties/9781360072241-item.html
Brady Polyester Caution Sign: ACETYLENE Black on yellow; Cold temperature | Fisher ScientificBrady Polyester Caution Sign: ACETYLENE Black on yellow; Cold temperature | Fisher Scientific
Shop a large selection of Chemical Hazards Safety Signs products and learn more about Brady Polyester Caution Sign: ACETYLENE Black on yellow; Cold temperature Black on yellow;
https://www.fishersci.com/shop/products/polyester-caution-sign-acetylene-2/19105463
Twin-line Oxygen/Acetylene Hose, 50 ft. for Rent - United RentalsTwin-line Oxygen/Acetylene Hose, 50 ft. for Rent - United Rentals
Get rental information on Twin-line Oxygen/Acetylene Hose, 50 ft. from United Rentals. Rent equipment, tools or [node:Welder Accessories] for your next project.
https://www.unitedrentals.com/marketplace/equipment/welders-accessories/welder-accessories/hose-oxygen-acetylene-50
What is the balanced equation for the complete combustion of acetylene? | Reference.comWhat is the balanced equation for the complete combustion of acetylene? | Reference.com
The balanced equation for the combustion of acetylene is 2 H2C2 + 5 O2 ? 4 CO2 + 2 H2O. A combustion reaction occurs when a compound merges with oxygen to release heat in an exothermic...
https://www.reference.com/science/balanced-equation-complete-combustion-acetylene-72a0590eb2b6c77d
sodium carboxymethylcellulose-bound urchin-like CoSe2/acetylene blacksodium carboxymethylcellulose-bound urchin-like CoSe2/acetylene black
Page contains details about sodium carboxymethylcellulose-bound urchin-like CoSe2/acetylene black . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
https://nano.nature.com/nano/GR-M8597413?error=cookies_not_supported&code=3151f7b3-acf8-4a20-a39e-d0a0ebd9e449
Acetylene - Chemical production and investment cost | IHS MarkitAcetylene - Chemical production and investment cost | IHS Markit
Reports emphasize significant developments in process technology for Acetylene that have potential implications for the chemical and energy industries
https://www.ihs.com/ja/products/chemical-technology-pep-acetylene-1981.html
polypyrrole/nano-sulfur/PVDF/acetylene black compositepolypyrrole/nano-sulfur/PVDF/acetylene black composite
Page contains details about polypyrrole/nano-sulfur/PVDF/acetylene black composite . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
http://nano.nature.com/nano/GR-M2153056
Index to the US Patent ClassificationIndex to the US Patent Classification
GEL COLLOIDAL .........................252/315.1+ MISC CHEMICAL MANUFACTURE ........156/DIG.108 RADIOACTIVE .......................252/634 SILICA ............................423/334+ GEL ROUTE TO GLASS MAKING ........... 501/12 GELATINE ............................ 530/354 JELLIES ...........................426/576 GEMS ................................ 63/32 ARTIFICIAL ........................501/86 CHANGING COLOR BY RADIATION .......378/38 DESIGN ............................D11/89+ SETTING METHODS AND APPARATUS .....29/10 SETTINGS ..........................63/26+ GENEALOGICAL CHARTS TEACHING ..........................434/154+ GENERATOR MOTOR ..................... 310/113 GENERATORS (SEE STEAM, GENERATORS) .. D13/112 ACETYLENE .........................48/1 ACETYLENE .........................48/2 ACETYLENE .........................48/3.R ACETYLENE .........................48/4+ CHEMICAL ..........................422/198+ CHEMICAL PRESSURE IN FIRE EXTINGUISHER ...................169/6+ COMBUSTIBLE ...
http://www.ibiblio.org/patents/index/indexg2.html
what mass of acetylene, will be produced from the reaction of 90g of calciumwhat mass of acetylene, will be produced from the reaction of 90g of calcium
Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) gas and calcium hydroxide (Ca(OH)2). If the ΔH for: CaC2(s) + 2H2O(l) = Ca(OH)2(s) + C2H2(g) is -127 kJ, then what is the enthalpy of formation for calcium carbide ...
https://www.jiskha.com/display.cgi?id=1271730920
Acetylene (Concept) - Engineer Research and Development Center Library
div class=citation vocab=http://schema.org/,,i class=fa fa-external-link-square fa-fw,,/i, Data from ,span resource=http://engineerradcc.library.link/resource/UtpTM5oHU-w/ typeof=Intangible http://bibfra.me/vocab/lite/Concept,,span property=name http://bibfra.me/vocab/lite/label,,a href=http://engineerradcc.library.link/resource/UtpTM5oHU-w/,Acetylene,/a,,/span, - ,span property=offers typeOf=Offer,,span property=offeredBy typeof=Library ll:Library resource=http://engineerradcc.library.link/#_default,,span property=name http://bibfra.me/vocab/lite/label,,a property=url href=http://engineerradcc.library.link/,Engineer Research and Development Center Library,/a,,/span,,/span,,/span,,/span,,/div ...
http://engineerradcc.library.link/resource/UtpTM5oHU-w/
Acetylene (Topic) - Brigham Young University
div class=citation vocab=http://schema.org/,,i class=fa fa-external-link-square fa-fw,,/i, Data from ,span resource=http://link.lib.byu.edu/resource/v_CbHZjm-Y0/ typeof=Enumeration http://bibfra.me/vocab/lite/Topic,,span property=name http://bibfra.me/vocab/lite/label,,a href=http://link.lib.byu.edu/resource/v_CbHZjm-Y0/,Acetylene,/a,,/span, - ,span property=offers typeOf=Offer,,span property=offeredBy typeof=Library ll:Library resource=http://link.lib.byu.edu/,,span property=name http://bibfra.me/vocab/lite/label,,a property=url href=http://link.lib.byu.edu/,Brigham Young University,/a,,/span,,/span,,/span,,/span,,/div ...
http://link.lib.byu.edu/resource/v_CbHZjm-Y0/
Acetylene Good Practices | BOConline UKAcetylene Good Practices | BOConline UK
Follow these practical tips and guidelines to mitigate or eliminate the risk of injury to themselves or others when transporting and handling acetylene.
https://www.boconline.co.uk/en/health-and-safety/gas-safety/acetylene-safety/acetylene-good-practices/index.html
What are some uses for ethyne? | Reference.comWhat are some uses for ethyne? | Reference.com
A common use of ethyne, also called acetylene, is as a fuel in welding. An acetylene flame can reach temperatures of close to 6,000 degrees Fahrenheit. Acetylene is also used for making carbon...
https://www.reference.com/science/uses-ethyne-b8cc73e871dd360b
Preparation of Novel Chiral Non-Racemic Diselenides and Applications in Asymmetric Synthesis - Zhao - 2010 - European Journal...Preparation of Novel Chiral Non-Racemic Diselenides and Applications in Asymmetric Synthesis - Zhao - 2010 - European Journal...
Marcelo Godoi, Eduardo W. Ricardo, Tiago E. Frizon, Manuela S.T. Rocha, Devender Singh, Márcio W. Paixão, Antonio Luiz Braga, An efficient synthesis of alkynyl selenides and tellurides from terminal acetylenes and diorganyl diselenides or ditellurides catalyzed by recyclable copper oxide nanopowder, Tetrahedron, 2012, 68, 51, ...
http://onlinelibrary.wiley.com/doi/10.1002/ejoc.201001272/full
Triazolyl-based molecular gels as ligands for autocatalytic clickreactionsTriazolyl-based molecular gels as ligands for autocatalytic clickreactions
The catalytic performance of triazolyl-based molecular gels was investigated in the Huisgen 1,3-dipolar cycloaddition of alkynes and azides. Low-molecular-weight gelators derived from l-valine were synthesized and functionalized with a triazole fragment. The resultant compounds formed gels either with or without copper, in a variety of solvents of different polarity. The gelators coordinated CuI and exhibited a high catalytic activity in the gel phase for the model reaction between phenylacetylene and benzylazide. Additionally, the gels were able to participate in autocatalytic synthesis and the influence of small structural changes on their performance was observed. [-] ...
http://repositori.uji.es/xmlui/handle/10234/165659
DSpace at IIT Bombay: A Combined Spectroscopic and ab Initio Investigation of Phenylacetylene-Methylamine Complex. Observation...
Two distinct isomers for the binary complex between phenylacetylene and methylamine were observed. The first complex is characterized by the presence of a C-H center dot center dot center dot N hydrogen bond between the acetylenic C-H group and the N atom of methylamine. In the second complex the N-H group of methylamine interacts with the pi electron density of the benzene ring accompanied by a peripheral interaction between the methyl C-H group and the pi electron density of the C C bond. Stabilization energies and Gibbs free energies at the complete basis set (CBS) limit of the coupled cluster theory with single, double, and perturbative triple excitations [CCSD(T)] suggest that while the C-H center dot center dot center dot N hydrogen bonded complex is the global minimum, the N-H center dot center dot center dot pi hydrogen bonded complex is a high energy local minimum. The formation of the N-H center dot center dot center dot pi complex could be related to kinetic trapping or higher ...
http://dspace.library.iitb.ac.in/jspui/handle/10054/3681
IspH - a protein free to choose its partners - TUMIspH - a protein free to choose its partners - TUM
IspH owes its flexibility to the structure and location of its active site. The enzyme is composed of three structural units that harbor a cubic iron-sulfur cluster at their center. This unusual structure enables the enzyme to accomplish a challenging reaction: converting an allyl alcohol to a mixture of the two isoprene components. While iron-sulfur proteins normally act as electron transmitters (deoxidation and oxidation respectively), the IspH enzyme binds the substrate directly to the iron-sulfur cluster. Basis for industrial applications Apart from acetylene hydratase and nitrogenase, IspH is just the third enzyme known to convert acetylene compounds. In addition, until now there were no known iron-containing catalysts that could carry out this reaction. Thus the newly discovered property of IspH could enable the development of new active pharmaceutical ingredients, particularly for the battle against malaria and tuberculosis ...
https://www.tum.de/en/about-tum/news/press-releases/detail/article/30058/
Search Results - AccessScience from McGraw-Hill EducationSearch Results - AccessScience from McGraw-Hill Education
An organic compound with the formula C2H2 or HCCH. The first member of the alkynes, acetylene is a gas with a narrow liquid range; the triple point is −81°C (−114°F). The heat of formation (ΔH°f ) is +227 kilojoules/mole, and acetylene is the most ...
https://www.accessscience.com/search?topics=Chemistry&topics=Astronomy+%26+Space+Science&start=0&%3Bstart=0&%3Bamp%3BsearchStr=Marine+ecology&types=Image+Gallery&types=Article&types=Video+%2F+Animation&%3Bamp%3Btypes=Image+Gallery&%3Bamp%3Btypes=Biography&%3Bamp%3Brows=10&%3Bamp%3BrootID=794558&rows=25
Short exposure to acetylene to distinguish between nitrifier and denitrifier nitrous oxide production in soil and sediment...
TY - JOUR. T1 - Short exposure to acetylene to distinguish between nitrifier and denitrifier nitrous oxide production in soil and sediment samples. AU - Kester, R.A.. AU - De Boer, W.. AU - Laanbroek, H.J.. N1 - Reporting year: 1996 Metis note: 2141; CTE; TME ; ME file:///L:/Endnotedatabases/NIOOPUB/pdfs/Pdfs1996/Kester_ea_2141.pdf. PY - 1996. Y1 - 1996. N2 - The contribution of nitrifiers and denitrifiers to the nitrous oxide production in slurries of calcareous silt loam and river bank sediment at different oxygen concentrations was determined using acetylene as nitrification inhibitor. The addition of 10 Pa acetylene resulted in inhibition of nitrous oxide production at oxic conditions, but strongly enhanced the nitrous oxide production at oxygen-poor and anoxic conditions. Inhibition of nitrification by short exposure (1 to 24 h) to high concentrations of acetylene (100 Pa to 10 kPa) was tested using the same samples. After the removal of acetylene, nitrification was inhibited almost ...
https://pure.knaw.nl/portal/en/publications/short-exposure-to-acetylene-to-distinguish-between-nitrifier-and-
50L Medical Use Seamless Steel Oxygen Nitrogen Lar CNG Acetylene Hydrogen 150bar/200bar Gas Cylinder China Manufacturer50L Medical Use Seamless Steel Oxygen Nitrogen Lar CNG Acetylene Hydrogen 150bar/200bar Gas Cylinder China Manufacturer
China 50L Medical Use Seamless Steel Oxygen Nitrogen Lar CNG Acetylene Hydrogen 150bar/200bar Gas Cylinder with High-Quality, Leading 50L Medical Use Seamless Steel Oxygen Nitrogen Lar CNG Acetylene Hydrogen 150bar/200bar Gas Cylinder Manufacturers & Suppliers, find 50L Medical Use Seamless Steel Oxygen Nitrogen Lar CNG Acetylene Hydrogen 150bar/200bar Gas Cylinder Factory & Exporters.
http://www.airpuris.com/high-pressure-steel-cylinder/42074156.html
Nanostructure and high-rate discharge-charge property of manganese oxide/acetylene black nanocomposite synthesized by...
TY - JOUR. T1 - Nanostructure and high-rate discharge-charge property of manganese oxide/acetylene black nanocomposite synthesized by sonochemical method. AU - Kawaoka, Hirokazu. AU - Hibino, Mitsuhiro. AU - Zhou, Haoshen. AU - Honma, Itaru. PY - 2005/2/14. Y1 - 2005/2/14. N2 - Nanostructure and high-rate discharge-charge capacities were investigated for the manganese oxide/acetylene black (AB) nanocomposites fabricated by sonication from aqueous solutions containing permanganate ion. Coating structure in which the acetylene black particles were uniformly coated with manganese oxide was successfully prepared from a pH=10 solution. On the other hand, acicular and tabular birnessite crystals were observed in samples obtained from pH,1 solutions, although the formation rate of manganese oxide in the pH,1 solution was much faster than that in the pH=10 solution. The sample from the pH=10 solution could be discharged and charged under high current density, such as 10 A g -1, because of the unique ...
https://tohoku.pure.elsevier.com/en/publications/nanostructure-and-high-rate-discharge-charge-property-of-manganes
BIS(TRIMETHYLSTANNYL)ACETYLENE 2117-50-2 Chemical Safety Info Safety InfoBIS(TRIMETHYLSTANNYL)ACETYLENE 2117-50-2 Chemical Safety Info Safety Info
BIS(TRIMETHYLSTANNYL)ACETYLENE 2117-50-2 safety info, BIS(TRIMETHYLSTANNYL)ACETYLENE chemical safety search, Chemical BIS(TRIMETHYLSTANNYL)ACETYLENE safety technical specifications ect.
http://www.molbase.com/en/safetyinfo_2117-50-2-moldata-46437.html
the type of hybridization in alkynes is
This has some implications in the properties and chemical reactivity of sigma and pi bonds. Ethyne or acetylene, HC=CH, is the simplest alkyne example. The process for understanding the sp hybridization process for carbon is basically an extension of the other two types (sp 3 and sp 2). Thus, in acetylene (ethyne), there are two unhybridized orbitals, which, by convention are and (see figure below): Figure: Illustrating the sp orbitals. The triple bonded carbon atoms of acetylene aresp hybridized. The sigma bond is short and strong. E)An alkyne reacts as an electrophile,and is therefore electron poor. Type of â ¦ You should try to work out this scheme on your own and see if your predictions agree with those presented in the textbook. is related to Unsaturated Hydrocarbons Quiz. The Structure of Ethyne (Acetylene): sp Hybridization ** Hydrocarbons in which two carbon atoms share three pairs of electrons between them, and are thus bonded by a triple bond, are called alkynes. Correspondingly, ...
http://worthytravel.com/xke1mp2/the-type-of-hybridization-in-alkynes-is-2fbe38
The structure of host-guest complexes between dibenzo-18-crown-6 and water, ammonia, methanol, and acetylene : Evidence of...
Complexes of dibenzo-18-crown-6 (DB18C6, host) with water, ammonia, methanol, and acetylene (guest), formed in supersonic jets, have been characterized by using various spectroscopic methods: laser induced fluorescence (LIF), UV-UV hole-buning (UV-UV HB), and IR-UV double resonance (IR-UV DR) spectroscopy. Firstly, we reinvestigated the conformations of bare DB18C6 (species m1 and m2) and the structure of DB18C6-H2O (species a) [R. Kusaka, Y. Inokuchi, T. Ebata, Phys. Chem. Chem. Phys., 2008, 10, 6238] by measuring the IR-UV DR spectra in the region of the methylene CH stretching vibrations. From the IR-UV DR spectra, it was found that the IR spectral feature of the methylene CH stretch of DB18C6-H2O is clearly different from those of bare DB18C6 conformers, suggesting that DB18C6 changes its conformation when it forms the complex with a water molecule. With the aid of Monte Carlo simulation for extensive conformational search and density functional calculations (at B3LYP and M05-2X/6-31+G* ...
http://ir.lib.hiroshima-u.ac.jp/en/list/HU_creator/H/2c24955038ffd449520e17560c007669/item/37647
trans-Mutation at Gold(III): A mechanistic study of a catalytic acetylene functionalization via a double insertion pathway
The Au(III) complex Au(tpy)(OAcF)2 (OAcF = OCOCF3; tpy = 2-(p-tolyl)pyridine) catalyzes the anti addition of trifluoroacetic acid (HOAcF) to acetylene to furnish vinyl trifluoroacetate. The Au(III) vinyl complex Au(tpy)(OAcF)(CH═CHOAcF) (vinyl group bonded trans to tpy-N) is formed during the early stage of the reaction. The vinyl complex, which has been isolated and structurally characterized, resists protolytic cleavage of the vinyl group, and therefore catalysis does not proceed by a simple formal insertion (i.e., coordination-nucleophilic attack-protolysis at the site trans to tpy-N) mechanism. Experimental evidence, including isotopic labeling, rather suggests that a double-insertion process is operative. The unobserved Au(III) divinyl complex Au(tpy)(CH═CHOAcF)2 is a crucial intermediate for which the true catalytic activity, comprising a coordination-nucleophilic attack-protolysis sequence, occurs at the site trans to tpy-C. The overall mechanism is in full agreement with DFT ...
https://www.duo.uio.no/handle/10852/64649
Adsorption Properties of the o-Al13Co4(100) Surface toward Molecules Involved in the Semihydrogenation of Acetylene
This paper presents the adsorption properties of the o-Al13Co4(100) surface toward molecules involved in the semihydrogenation of acetylene. The energetically favored adsorption sites of H, C2H2, C2H3, and C2H4 are determined thanks to ab initio density functional calculations. The surface model used for this study has been determined previously [Phys. Rev. B 2011, 84, 085411], using an approach combining both experimental observations and density functional theory calculations. We show that although the surface termination layer of o-Al13Co4(100) is a dense Al-rich layer, its adsorption properties are quite different from pure elemental Al surfaces, especially for atomic hydrogen adsorption (exothermic on o-Al13Co4(100) and endothermic on low index Al surfaces). The role of surface and subsurface cobalt atoms is investigated carefully. The electronic donor/acceptor character of subsurface cobalt atoms is shown to influence the adsorption properties. In particular, the subsurface cobalt atoms have a
https://hal.inria.fr/hal-01075982
Experimental and density functional theory studies of some novel piperidine-containing acetylene glycolsExperimental and density functional theory studies of some novel piperidine-containing acetylene glycols
Synthesis routes of novel piperidine-containing acetylenes are presented. The new molecules are expected to exhibit plant growth stimulation properties. In particular, the yield in a situation of drought is expected to increase. Our synthesis makes use of the Favorskii reaction between cyclohexanone/piperidone and triple-bond containing alcohols. The structures of the obtained molecules were determined using nuclear magnetic resonance (NMR). The electronic structure and geometries of the molecules were studied theoretically using first-principles calculations based on density functional theory. The calculated geometries agree very well with the experimentally determined ones, and also allow us to determine bond lengths, angles and charge distributions inside the molecules.. ...
http://kth.diva-portal.org/smash/record.jsf?pid=diva2:948170
British Library EThOS: The catalytic hydrogenation of acetylene by liquid-supported nickel catalyst with special reference to...British Library EThOS: The catalytic hydrogenation of acetylene by liquid-supported nickel catalyst with special reference to...
The catalytic hydrogenation of acetylene by liquid-supported nickel catalyst with special reference to the selective formation of ethylene ...
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.662031
New Reaction of Iodine with Sterically Hindered Acetylene, 1,2,4,5-Tetramethyl-3,6-bis(phenylethynyl)benzene in Dimethyl...
TY - JOUR. T1 - New Reaction of Iodine with Sterically Hindered Acetylene, 1,2,4,5-Tetramethyl-3,6-bis(phenylethynyl)benzene in Dimethyl Sulfoxide. AU - Yusubov, M. S.. AU - Zholobova, G. A.. AU - Vasileva, V. P.. AU - Habicher, W.. AU - Filimonov, V. D.. PY - 1996/8. Y1 - 1996/8. UR - http://www.scopus.com/inward/record.url?scp=0030337418&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0030337418&partnerID=8YFLogxK. M3 - Article. AN - SCOPUS:0030337418. VL - 32. SP - 1233. EP - 1234. JO - Russian Journal of Organic Chemistry. JF - Russian Journal of Organic Chemistry. SN - 1070-4280. IS - 8. ER - ...
https://tpu.pure.elsevier.com/en/publications/new-reaction-of-iodine-with-sterically-hindered-acetylene-1245-te
What is Consuming Hydrogen and Acetylene on Titan?What is Consuming Hydrogen and Acetylene on Titan?
Two new papers based on data from NASAs Cassini spacecraft scrutinize the complex chemical activity on the surface of Saturns moon Titan.
https://www.jpl.nasa.gov/news/what-is-consuming-hydrogen-and-acetylene-on-titan
Novel Synthetic Approaches Toward Substituted Indole ScaffoldsNovel Synthetic Approaches Toward Substituted Indole Scaffolds
This regiospecific procedure consisted of a Pd domino indolization involving a consecutive Pd-catalyzed Sonogashira coupling followed by aminopalladation and reductive elimination starting from 2-iodo-N-trifluoroacetylanilide 1, a suitable acetylene 2 and bromoarene 3. The Senanayake group optimized the reaction conditions as shown in Scheme 1: the use of trifluoroacetyl as protecting group in 1 was shown to be advantageous (readily hydrolyzable); addition of bromobenzene at the beginning simplified the procedure and enhanced the reaction rate; DMF as solvent combined with K2CO3 as base, and a temperature of 60 C gave better results.. The Larock group of the Iowa State University reported (J. Org. Chem. 2006, 71, 62. ) on the synthesis of 3-iodoindoles 8 via Pd/Cu-catalyzed coupling of N,N-dialkyl-2-iodoanilines 5 with terminal acetylenes 6 and subsequent electrophilic cyclization of 7 (Scheme 2). Due to the high reactivity of N,N-dialkyl-o-iodoanilines towards the Sonogashira coupling, a wide ...
http://www.organic-chemistry.org/Highlights/2006/05September.shtm
UFZ - Publication Index - Helmholtz-Centre for Environmental Research
The NO turnover in soils was measured in two different experimental set-ups, a flow-through system, which is very time-consuming and needs rather sophisticated equipment, and a closed system using serum bottles. We compared the NO turnover parameters (NO consumption rate constant, NO production rate, NO compensation concentration) that were measured with both systems in different soils, under different conditions and in the presence of 10 Pa acetylene to inhibit nitrification. The values of the NO turnover parameters that were measured with the two systems under oxic conditions were usually comparable. The addition of acetylene did not affect the NO consumption rate constants of the soils with the exception of soil G1. However, the NO production rates and the NO compensation concentrations decreased significantly in the presence of acetylene, indicating that nitrification was the main source of NO in these soils. Only one soil (Bol) showed no nitrifying activity. Increasing soil moisture content ...
https://www.ufz.de/index.php?en=20939&pub_id=7846
Patent US4216341 - Selective hydrogenation of certain nitroaromatic hydroxy substituted ... - Google PatentsPatent US4216341 - Selective hydrogenation of certain nitroaromatic hydroxy substituted ... - Google Patents
Nitroaromatic hydroxy substituted acetylene compounds wherein both the nitro and acetylene groups are directly connected to aromatic ring carbon atoms are hydrogenated in an inert solvent to selectively reduce the nitro function over a ruthenium disulfide catalyst. Of particular interest is the preparation of aminophenylacetylene from nitrophenyl hydroxy substituted acetylene.
http://www.google.com/patents/US4216341?dq=5,941,947
A molecular porous zirconium-organic material exhibiting highly selective CO<sub>2</sub> adsorption, high thermal stability,...
TY - JOUR. T1 - A molecular porous zirconium-organic material exhibiting highly selective CO2 adsorption, high thermal stability, reversible hydration, facile ligand exchange and exclusive dimerization of phenylacetylene. AU - Lee, Nam Hee. AU - Lee, Dong Woo. AU - Yeo, Hakmin. AU - Kwak, Kyungwon. AU - Chun, Hyang Sook. AU - Ok, Kang Min. PY - 2014/7/7. Y1 - 2014/7/7. N2 - A new molecular porous zirconium-organic material, Zr{[NC5H 3(CO2)2]2(OH2) 2}·1.3H2O (CAUMOF-12) has been synthesized by a hydrothermal reaction using Zr(NO3)4, 2,6-NC 5H3(CO2H)2, HNO3 and water at 180 °C. Single-crystal X-ray diffraction was used to determine the crystal structure of the reported material. Although the material can be classified as a molecular compound, CAUMOF-12 exhibits a pseudo-three- dimensional open-framework structure with void spaces obtained by intermolecular hydrogen bonds. CAUMOF-12 reveals differential gas adsorption characteristics and high thermal stability. Reversible hydration, facile ligand ...
https://koreauniv.pure.elsevier.com/en/publications/a-molecular-porous-zirconium-organic-material-exhibiting-highly-s
Dr. Julián Bergueiro Álvarez • Calderón Group • Department of Biology, Chemistry, PharmacyDr. Julián Bergueiro Álvarez • Calderón Group • Department of Biology, Chemistry, Pharmacy
Dr. Julián Bergueiro Álvarez received his BS in Chemistry from the University of Santiago de Compostela (Spain) in 2007. In 2008 he obtained the MS in Organic Chemistry and in 2013 he received his PhD from USC for his work in sterecontrolled synthesis of retinoids employing transition metal catalyzed reactions in the key steps. During the last year of his PhD he joined the group of Prof. R. Riguera and Prof. E. Quiñoá to work on the synthesis and characterization of stimuliresponse helical polymers and poly(phenylacetylene)[email protected] nanoparticles nanocomposites. In October 2013, he joined Prof. M. Calderón group to carry out his postdoctoral research at Freie Universität Berlin. His current research is focused on gold based thermoresponsive nanogels as novel drug delivery nanocarriers.. Publication at the Calderon Lab. Thermoresponsive Nanodevices in Biomedical Applications. J. Bergueiro, M. Calderón. Macromolecular Bioscience. Macromolecular Bioscience (2015), 15, ...
https://www.bcp.fu-berlin.de/en/chemie/chemie/forschung/OrgChem/calderon/Former-members/Dr_-Julian-Bergueiro-Alvarez.html
中国科学院大连化学物理研究所机构知识库(DICP OpenIR): Reversal of predominant enantioselectivity in the asymmetric alkynylation reaction using...
The change of substituent in the backbone Of L-proline-derived sulfamide-amine alcohol ligand 3 provides chiral propargylic alcohols with the opposite configurations in significant enantioselectivities in the asymmetric addition of phenylacetylene to aldehydes. Meanwhile, the ligand 3 in combination with Ti((OPr)-Pr-i)(4) could also afford the products with opposite absolute configuration in high yields. (c) 2006 Elsevier B.V. All rights reserved ...
http://cas-ir.dicp.ac.cn/handle/321008/97239
Aryl acetylenes as mechanism-based inhibitors of cytochrome P450-dependent monooxygenase enzymes. - PubMed - NCBIAryl acetylenes as mechanism-based inhibitors of cytochrome P450-dependent monooxygenase enzymes. - PubMed - NCBI
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
https://www.ncbi.nlm.nih.gov/pubmed/9074808?dopt=Abstract
Simultaneous assessment of nitrification and denitrification on freshwater epilithic biofilms by acetylene block method. -...Simultaneous assessment of nitrification and denitrification on freshwater epilithic biofilms by acetylene block method. -...
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
https://www.ncbi.nlm.nih.gov/pubmed/12369526?dopt=Abstract
CCCC 1999, Volume 64, Issue 4, Abstracts pp. 649-672 | Collection of Czechoslovak Chemical Communications
The Pd- or Pd/Cu-catalyzed coupling reactions of halobenzenes bearing the methyl, hydroxymethyl, acetoxymethyl, methoxycarbonyl, or both methoxy and 4,4-dimethyl-4,5-dihydro-1,3-oxazol-2-yl groups in the ortho-position with gaseous or metallated acetylene, (trialkylsilyl)acetylenes, and arylacetylenes have been systematically studied. Various functionalized aryl- or diarylacetylenes have been synthesized in good to excellent yields. Whereas additional fluoro, nitro, or methoxy group attached to the benzene ring does not interfere in the coupling reactions, the presence of a methoxycarbonyl requires a careful optimization of reaction conditions to achieve moderate yields. Keywords: Halobenzenes; Phenylacetylenes; Diphenylacetylenes; Cross-coupling reactions; Palladium catalysis; Arenes; Alkynes. ...
http://cccc.uochb.cas.cz/64/4/0649/
Synthesis, Characterization, and Stability of Fe-MCM-41 for Production of Carbon Nanotubes by Acetylene PyrolysisSynthesis, Characterization, and Stability of Fe-MCM-41 for Production of Carbon Nanotubes by Acetylene Pyrolysis
Autori: Placidus B. Amama, Sangyun Lim, Dragos Ciuparu, Yanhui Yang, Lisa Pfefferle, Gary L. Haller. Editorial: Journal of Physical Chemistry B, 109(7), p.2645 -2656, 2005.. Rezumat:. Fe-substituted MCM-41 molecular sieves with ca. 1, 2, and 3 wt % Fe were synthesized hydrothermally using different sources of colloidal silica (HiSil and Cab-O-Sil) and characterized by ICP, XRD, N2 physisorption, UV-vis, EPR, TPR, and X-ray absorption. Catalysts synthesized from Cab-O-Sil showed higher structural order and stability than those from HiSil. The local environment of Fe in the mesoporous material as studied by UV-vis reveals the dominance of framework Fe in all the as-synthesized Fe-MCM-41 samples. Dislodgement of some Fe species to extraframework location occurs upon calcination, and this effect is more severe for Fe-MCM-41 (2 wt %) and Fe-MCM-41 (3 wt %), as confirmed by EPR and X-ray absorption. These materials have been used as catalytic templates for the production of carbon nanotubes (CNTs) by ...
http://ad-astra.ro/2005/03/07/synthesis-characterization-and-stability-of-fe-mcm-41-for-production-of-carbon-nanotubes-by-acetylene-pyrolysis/
British Library EThOS: Detailed chemical kinetic model for oxygenated fuelsBritish Library EThOS: Detailed chemical kinetic model for oxygenated fuels
A detailed chemical kinetic model is developed and tested for the combustion of C2 and C3 oxygenated fuels such as ethanol, DME (dimethyl ether), acetone and n-propanol. It is validated by comparing predictions with experimental data on the structure of low pressure burner stabilised premixed flames and laminar burning velocities over a wide range of equivalence ratios. Data from shock tube and stirred reactor studies has also been considered. The elementary reactions of ethanol and DME oxidation have been studied extensively and were used as a starting point for extension to C3 oxygenated fuels. The chemistry of acetylene which is one of major intermediate species in higher hydrocarbon flames was also updated to improve the reliability of the present mechanism and acetylene laminar burning velocities and low-pressure premixed lean and rich flames were also computed. The detailed mechanism features more than 1500 reaction steps and 269 species. The structure of laminar premixed flames are ...
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.556519
Similar papers for Multiplexing of optical fiber gas sensors with a frequency-modulated continuous-wave technique. - Semantic...Similar papers for Multiplexing of optical fiber gas sensors with a frequency-modulated continuous-wave technique. - Semantic...
We report on the use of a frequency-modulated continuous-wave technique for multiplexing optical fiber gas sensors. The sensor network is of a ladder topology and is interrogated by a tunable laser. The system performance in terms of detection sensitivity and cross talk between sensors was investigated and found to be limited by coherent mixing between signals from different channels. The system performance can be improved significantly by use of appropriate wavelength modulation-scanning coupled with low-pass filtering. Computer simulation shows that an array of 37 acetylene sensors with a detection accuracy of 2000 parts in 10(6) for each sensor may be realized. A two-sensor acetylene detection system was experimentally demonstrated that had a detection sensitivity of 165 parts in 10(6) for 2.5-cm gas cells (or a minimum detectable absorbance of 2.1 x 10(-4)) and a cross talk of -25 dB.
https://www.semanticscholar.org/paper/Multiplexing-of-optical-fiber-gas-sensors-with-a-f-Yu-Jin/d04304dd584f0a1a14fa0adb4d554bb2f441d22e?tab=relatedPapers
Acetylene (C 2 H 2 ) can be produced from the reaction of calcium carbide (CaC 2 ) with water. Use both the localized electron...Acetylene (C 2 H 2 ) can be produced from the reaction of calcium carbide (CaC 2 ) with water. Use both the localized electron...
Textbook solution for Chemistry: An Atoms First Approach 2nd Edition Steven S. Zumdahl Chapter 4 Problem 79E. We have step-by-step solutions for your textbooks written by Bartleby experts!
https://www.bartleby.com/solution-answer/chapter-4-problem-79e-chemistry-an-atoms-first-approach-2nd-edition/9781305079243/acetylene-c2h2-can-be-produced-from-the-reaction-of-calcium-carbide-cac2-with-water-use-both/ca00b586-a594-11e8-9bb5-0ece094302b6
Acetylene - SHENGTUO China Silica Sol, China Industrial Gas, China Para Formaldehyde, China LABSAAcetylene - SHENGTUO China Silica Sol, China Industrial Gas, China Para Formaldehyde, China LABSA
Shengtuo Chemical is a professional factory of china silica sol, china industrial gas, Para Formaldehyde and other chemical products. With high quality and competitive price.
https://m.shengtuochemical.com/en/h-pd-98.html
Smart toolbar missing fixer proSmart toolbar missing fixer pro
Smart Toolbar Missing Fixer ProSmart Toolbar Missing Fixer Pro Short Review:Smart Toolbar Missing Fixer Pro isprofessional toolbar missing error fixer. The new…
https://www.slideshare.net/SayBoh/smart-toolbar-missing-fixer-pro-22011141
Acetic acid | Science onlineAcetic acid | Science online
Alkynes (Acetylenes) Alkynes are unsaturated open-chain hydrocarbons which contain at least one triple bond in the carbon chain, they form a homologous series, Its general molecular formula is (CnH2n-2), where n the number of ...
https://www.online-sciences.com/tag/acetic-acid/
Alkyne synonyms, alkyne antonyms - FreeThesaurus.comAlkyne synonyms, alkyne antonyms - FreeThesaurus.com
Synonyms for alkyne in Free Thesaurus. Antonyms for alkyne. 2 synonyms for alkyne: acetylene, ethyne. What are synonyms for alkyne?
https://www.freethesaurus.com/alkyne
Isotopic effect on electrochemical CO2 reduction activity and selectivity in H2O- and D2O-based electrolytes over palladium -...Isotopic effect on electrochemical CO2 reduction activity and selectivity in H2O- and D2O-based electrolytes over palladium -...
The isotopic effect on the electrochemical CO2 reduction reaction (CO2RR) is investigated in this study. A higher CO2RR selectivity over its competing hydrogen evolution reaction was observed in D2O-based electrolytes compared with the H2O-based counterparts, which can be attributed to the lower [D+] concent
https://pubs.rsc.org/en/content/articlelanding/2019/cc/c9cc07611e
Simplified jet-A kinetic mechanism for combustor application by Bahman Ghorashi, Chi-Ming Lee et al.Simplified jet-A kinetic mechanism for combustor application by Bahman Ghorashi, Chi-Ming Lee et al.
Successful modeling of combustion and emissions in gas turbine engine combustors requires an adequate description of the reaction mechanism. For hydrocarbon oxidation, detailed mechanisms are only available for the simplest types of hydrocarbons such as methane, ethane, acetylene, and propane. These detailed mechanisms contain a large number of chemical species participating simultaneously in many elementary kinetic steps. Current computational fluid dynamic (CFD) models must include fuel vaporization, fuel-air mixing, chemical reactions, and complicated boundary geometries. To simulate these conditions a very sophisticated computer model is required, which requires large computer memory capacity and long run times. Therefore, gas turbine combustion modeling has frequently been simplified by using global reaction mechanisms, which can predict only the quantities of interest: heat release rates, flame temperature, and emissions. Jet fuels are wide-boiling-range hydrocarbons with ranges extending through
https://engagedscholarship.csuohio.edu/scholbks/126/
JENGAS - Nitrogen GasJENGAS - Nitrogen Gas
JENGAS deliver Acetylene, Oxygen, Nitrogen, CO2 and Argon gas cylinders for home the handyman or business. JENGAS sell gas cylinders outright so there is no deposit or rental
https://www.jengas.com.au/gas-types/nitrogen-gas
Catalysis - ONE Lab - Prof. Cafer T. YavuzCatalysis - ONE Lab - Prof. Cafer T. Yavuz
Nanoporous polymers as nanoparticle caging hosts for gas conversions. We showed that common transition metal nanoparticle based composites of porous polymers can catalyze probe reactions such as CO oxidation as good as platinum (J. Mater. Chem. A 2015, 3, 15489). Acetylene can be selectively reduced to ethylene using metal doped-COP-6 networks (ACS Catal. 2016, 6, 2435-2442 ...
http://yavuz.kaist.ac.kr/p/catalysis.html
Brazing line setBrazing line set
I would like to see what people are using to do there line sets. I think it would be fun to see the see how different we are to do the same job. I use the cheep green pads to clean the copper. They leave no residue. Stay-sil 15% brazing rods. Oxygen acetylene torch #3 tip | 5/8 #7 tip | 5/8 Purge line with Argon (not nitrogen) Thermal Engineering analog Vacuum Gauge. Robinair 5 cfm Vacuum Pump.
http://hvac-talk.com/vbb/showthread.php?611032-Brazing-line-set&mode=hybrid
High resolution infrared and Raman spectra of {sup 13}C{sup 12}CD{sub 2}: The CD stretching fundamentals and associated...High resolution infrared and Raman spectra of {sup 13}C{sup 12}CD{sub 2}: The CD stretching fundamentals and associated...
Infrared and Raman spectra of mono {sup 13}C fully deuterated acetylene, {sup 13}C{sup 12}CD{sub 2}, have been recorded and analysed to obtain detailed information on the C-D stretching fundamentals and associated combination, overtone, and hot bands. Infrared spectra were recorded at an instrumental resolution ranging between 0.006 and 0.01 cm{sup −1} in the region 1800-7800 cm{sup −1}. Sixty new bands involving the ν{sub 1} and ν{sub 3} C-D stretching modes also associated with the ν{sub 4} and ν{sub 5} bending vibrations have been observed and analysed. In total, 5881 transitions have been assigned in the investigated spectral region. In addition, the Q branch of the ν{sub 1} fundamental was recorded using inverse Raman spectroscopy, with an instrumental resolution of about 0.003 cm{sup −1}. The transitions relative to each stretching mode, i.e., the fundamental band, its first overtone, and associated hot and combination bands involving bending states with υ{sub 4} + υ{sub 5} up ...
https://www.osti.gov/scitech/biblio/22493597-high-resolution-infrared-raman-spectra-sup-sup-cd-sub-cd-stretching-fundamentals-associated-combination-hot-bands
Patents filed at Sep 06 2011 | System for controlling the reactivity of boronic acids | Patents.comPatents filed at Sep 06 2011 | System for controlling the reactivity of boronic acids | Patents.com
Method for separating aromatic compounds using simulated moving bed operation | High energy reduction in a propane dehydrogenation unit by utilizing a high pressure product splitter column | Process for producing olefins | Feed pretreating | Process for simultaneous production of benzene and ethylene by conversion of acetylene |
http://patents.com/isd-20110906-p49.html
MacromoleculeMacromolecule
The term macromolecule was coined by Nobel laureate Hermann Staudinger in the 1920s, although his first relevant publication on this field only mentions high molecular compounds (in excess of 1,000 atoms). [1]. At that time the phrase polymer as introduced by Berzelius in 1833 had a different meaning from that of today: it simply was another form of isomerism for example with benzene and acetylene and had little to do with size.[2]. Usage of the term to describe large molecules varies among the disciplines. For example, while biology refers to macromolecules as the four large molecules comprising living things, in chemistry, the term may refer to aggregates of two or more macromolecules held together by intermolecular forces rather than covalent bonds but which do not readily dissociate.[3]. According to the standard IUPAC definition, the term macromolecule as used in polymer science refers only to a single molecule. For example,a single polymeric molecule is appropriately described as a ...
https://www.princeton.edu/~achaney/tmve/wiki100k/docs/Macromolecule.html
Agamassan | chemistry | BritannicaAgamassan | chemistry | Britannica
Other articles where Agamassan is discussed: Nils Dalén: …in 1909 and then invented Agamassan, a substance that absorbs acetylene, making it possible to concentrate the gas with no danger of explosion. He was blinded by an explosion during an experiment in 1913, but he continued experimental work until his death.
https://www.britannica.com/science/Agamassan
Publikācijas - Latvijas Organiskās sintēzes institūtsPublikācijas - Latvijas Organiskās sintēzes institūts
Abele E.; Rubina K.; Lukevics E. Novel fluoride ion-mediated method of O-silylation and germylation of aromatic and heterocyclic oximes with terminal silylated and germylated acetylenes under phase transfer catalysis conditions . Latvian J. Chem. 2000(1), 77-81 ...
http://www.osi.lv/publikacijas/?gads=2000&tips=8&pg=3
Agriculture Courses - Lehi FFA ChapterAgriculture Courses - Lehi FFA Chapter
Students will learn basic skills related to welding and agricultural mechanics. Students will develop skills in the areas of working hot and cold metal including welding processes such as oxy/acetylene, shielded metal arc welding, gas metal arc welding (MIG), and project construction. Students will also learn to maintain, repair, and operate small gas engines. Additional basic skills may be taught including: plumbing, painting, measurements and tool identification. Emphasis will be placed on safety and proper use of tools and equipment. This class is part of an integral agriculture program ...
https://lehiffa.weebly.com/agriculture-courses.html
manual straight line gas cutting machine price in india
9 Best Kitchen Chimney in India 2021 (For Your Sparkling .... CG-30 STRAIGHT LINE CUTTING MACHINE Performs high quality straight, and bevel cuts. Includes 1 torch. 3 tips Airco/Concoa Style for Acetylene, Nº 1, 2 and 3. 70 inches rail. Stepless Drive System Maintains constant travel speed even at high temperatures for stable cuts. Lightweight, easy to carry and use. High-Quality Tips for fast and smooth .... View More ,,. ...
http://kolokacja.waw.pl/Apr_27_manual_straight_line_gas_cutting_machine_price_in_india/
Retractable Twin Welding Hose Reel: Safety First | Maktig
When using the MÄKTIG retractable twin welding hose reel, your welding hoses are stretched to only the necessary length, leaving the rest nice and tidy inside the reel and away from other tools and equipment. Compared to its rivals, this hose reel is definitely on the high end of the quality engineering spectrum. It is constructed of industrial-grade steel and equipped with 50 feet of ¼-inch diameter oxygen and acetylene hoses capable of bearing 200 psi of pressure. The directional rollers make deployment in any direction a breeze. These hoses feature dual O-ring seals and a whip hose with hose stop. The reel tension is also adjustable so you can use as much or as little effort to deploy it as you like ...
https://gomaktig.com/2017/06/15/retractable-twin-welding-hose-reel-safety-first/
Revell 1/25 Meter Cheater Kookie Kab Paris Taxi, H1207Revell 1/25 Meter Cheater Kookie Kab Paris Taxi, H1207
Plastic Model Kit. Rare. Dated 1970. Wild kit featuring detailed, all chrome Corvair engine and rear suspension, Goodyear slicks in rear with narrow tires up front, dropped front axle, chrome mag wheels, steerable front wheels, acetylene headlights and carriage lamp taillight, wrap-around flower box, one-piece fender with upholstered running board, hourglass taxi meter, bulb honk horn, custom bucket seats, luggage rack with guitar, suitcase and attache case and clear plastic windows with etched design. Molded in light blue, chrome plate, clear and with black tires. The kit has never been started. It has been inventoried complete with all parts and includes near mint condition decals and instructions.
https://www.oldmodelkits.com/index.php?detail=34567&page=1239&soldarchive=1&erl=Revell-1-25-Meter-Cheater-Kookie-Kab-Paris-Taxi-H1207
10 letter words containing n | WordsContaining.com10 letter words containing n | WordsContaining.com
This list of 10 letter words containing n has 5743 entries. It may be helpful for people looking for words that contain N, and 10 letter words with n. abandoning, abasements, abatements, abdicating, abdication, abducentes, aberration, abeyancies, abhorrence, abjectness, abjuration, abnegating, abnegation, abnormally, abolishing, abolitions, abominable, abominated, abominates, aboriginal, aborigines, abreacting, abridgment, abrogating, abscessing, absconding, absolution, absorbency, absorption, abstainers, abstaining. abstention, absterging, abstinence, abundances, abundantly, acanthuses, accentuate, acceptance, accessions, accidental, acclaiming, accordance, accordions, accountant, accounting, accoutring, accusation, acerbating, acetifying, acetylenes, achinesses, acidifying, acidnesses, acierating, acquainted, acquitting, acrimonies, activating, activation, adamancies, adaptation, addictions, additional, addressing, adenitises, adenopathy. adherences, adhibiting, adjourning, adjustment, ...
http://wordscontaining.com/n-10-letter/
Acetaldehyde Market By Manufacturing Process 2021 | IndustryARCAcetaldehyde Market By Manufacturing Process 2021 | IndustryARC
[145 Pages Report] Acetaldehyde Market Analysis categorizes the global market By Manufacturing Process (Acetylene Hydration, Others) Application (F&B, Pulp & Paper bleaching, Others) & geography
http://industryarc.com/Report/15318/acetaldehyde-market.html
romantic decay jewelry: i blame barbararomantic decay jewelry: i blame barbara
I couldnt wait till my husband came home from work to set things up properly, so I used my acetylene/atmospheric torch. The colors are a little muddy and a bit of a challenge with only one hand, but not to bad. I may have to break down and use some color in my work ...
http://romantic-decay.blogspot.com/2010/06/i-blame-barbara.html
CDS a 4€
Hola, vendo los siguientes cds a 4€ cada uno: ...And Oceans - A.M.G.O.D. Ab:Norm - Incide Acetylene - Elements of Insanity Acheron - Tribute to the Devils Mu
http://blackseed.activebb.net/t2209-cds-a-4eur
Low-Coordinate Synthetic Models for Nitrogenase Activity - Patrick HollandLow-Coordinate Synthetic Models for Nitrogenase Activity - Patrick Holland
Nitrogenases are vitally important enzymes that perform an amazing chemical reaction, the reduction of N2 to ammonia. In nitrogenases, iron-sulfur clusters cata...
http://grantome.com/grant/NIH/R01-GM065313-08
DailyMed - Search Results for Reduction ActivityDailyMed - Search Results for Reduction Activity
Due to inconsistencies between the drug labels on DailyMed and the pill images provided by RxImage, we no longer display the RxImage pill images associated with drug labels. We anticipate reposting the images once we are able identify and filter out images that do not match the information provided in the drug labels. ...
https://dailymed.nlm.nih.gov/dailymed/search.cfm?query=Reduction%20Activity&searchdb=class
AcetyleneAcetylene
Wikiquote has quotations related to Acetylene. Wikimedia Commons has media related to Acetylene. Acetylene Production Plant and ... Acetylene has a pKa of 25, acetylene can be deprotonated by a superbase to form an acetylide: HC ≡ CH + RM ⟶ RH + HC ≡ CM {\ ... The enzyme acetylene hydratase catalyzes the hydration of acetylene to give acetaldehyde: C 2 H 2 + H 2 O ⟶ CH 3 CHO {\ ... Berthelot later obtained acetylene directly by passing hydrogen between the poles of a carbon arc. Since the 1950s, acetylene ...
https://en.wikipedia.org/wiki/Acetylene
Acetylene hydrataseAcetylene hydratase
Because acetylene binding to the Mo in nitrogenase lends some support that the mechanism involves a Mo→CH2=CH2 bond. Acetylene ... Acetylene hydratase (EC 4.2.1.112, AH) is a bacterial enzyme, originally discovered in the anaerobic microorganism Pelobactor ... C2H2 + H2O → CH3CHO The mechanism is thought to involve attachment of acetylene to the metal followed by nucleophilic attack of ... Kroneck PM (March 2016). "Acetylene hydratase: a non-redox enzyme with tungsten and iron-sulfur centers at the active site". ...
https://en.wikipedia.org/wiki/Acetylene_hydratase
Acetylene (album)Acetylene (album)
Acetylene is a 2005 album by The Walkabouts. It features themes of anger and chaos. All songs by Chris Eckman. "Fuck Your Fear ... "Acetylene" - 3:36 "Before This City Wakes" - 6:02 "The Last Ones" - 9:09 Terri Moeller - drums Michael Wells - bass guitar ... Acetylene (Articles with Italian-language sources (it), Articles with German-language sources (de), Articles needing additional ...
https://en.wikipedia.org/wiki/Acetylene_(album)
Bis(trimethylsilyl)acetyleneBis(trimethylsilyl)acetylene
This compound is used as a surrogate for acetylene. BTMSA is prepared by treating acetylene with butyl lithium followed by ... Bis(trimethylsilyl)acetylene (BTMSA) is an organosilicon compound with the formula Me3SiC≡CSiMe3 (Me = methyl). It is a ... doi:10.1016/S0022-328X(00)89260-8. Curtain, M. L.; Wang, C. Bis(trimethylsilyl) acetylene. e-EROS. Rosenthal, Uwe; Burlakov, ... acetylene: Synthesis, Structure, and Chemistry†". Organometallics. 22 (5): 884-900. doi:10.1021/om0208570. (Articles without ...
https://en.wikipedia.org/wiki/Bis(trimethylsilyl)acetylene
Colt Acetylene Flash LanternColt Acetylene Flash Lantern
The Colt Acetylene Flash Lantern (or Colt Field Signal Lamp) was an acetylene signal lamp produced by the J. B. Colt Company ... 42-. Manual for Operation and Care of Colt Acetylene Flash Lantern. J.B. Colt Company. c. 1900. v t e (All stub articles, ... A description from maneuvers at Fort Riley detailed the device: The Colt's acetylene flash lantern was employed for night ...
https://en.wikipedia.org/wiki/Colt_Acetylene_Flash_Lantern
AlkyneAlkyne
... s are traditionally known as acetylenes, although the name acetylene also refers specifically to C2H2, known formally as ... In acetylene, the H-C≡C bond angles are 180°. By virtue of this bond angle, alkynes are rod-like. Correspondingly, cyclic ... H − C ≡ C − H {\displaystyle {\ce {H-C#C}}{\ce {-H}}} Acetylene H − C ≡ C − C , H H , − H {\displaystyle {\ce {H-C#C}}{-}{\ce ... C2H2: acetylene only C3H4: propyne only C4H6: 2 isomers: 1-butyne, and 2-butyne C5H8: 3 isomers: 1-pentyne, 2-pentyne, and 3- ...
https://en.wikipedia.org/wiki/Alkyne
AlkynylationAlkynylation
Grignard reagents of acetylene or alkynes can be used to perform alkynylations on compounds that are liable to polymerization ... The principal reaction of interest involves the addition of the acetylene (HC≡HR) to a ketone (R2C=O) or aldehyde (R−CH=O): RR ... The Favorskii reaction is an alternative set of reaction conditions, which involves prereaction of the acetylene with an alkali ... Chemist Walter Reppe pioneered catalytic, industrial-scale ethynylations using acetylene with alkali metal and copper(I) ...
https://en.wikipedia.org/wiki/Alkynylation
Charles HoskinsCharles Hoskins
"ACETYLENE EXPLOSION". Sydney Morning Herald (NSW : 1842 - 1954). 9 November 1916. p. 8. Retrieved 27 May 2020. "Family Notices ... Their eldest son, Henry Guildford Hoskins (known as Guildford) was fatally injured in an acetylene gas explosion, in 1916, ...
https://en.wikipedia.org/wiki/Charles_Hoskins
Alkyne zipper reactionAlkyne zipper reaction
Acetylene zipper. Exceptionally facile contrathermodynamic multipositional isomeriazation of alkynes with potassium 3- ...
https://en.wikipedia.org/wiki/Alkyne_zipper_reaction
N-VinylcarbazoleN-Vinylcarbazole
It is produced by the vinylation of carbazole with acetylene in the presence of base. Carbazole Lide, David R. (2008). CRC ... "Acetylene Chemistry". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a01_097.pub3. ISBN 3527306730. (CS1 ...
https://en.wikipedia.org/wiki/N-Vinylcarbazole
1-Ethynylcyclohexanol1-Ethynylcyclohexanol
Condensation of aldehydes and ketones with acetylene under pressure. New method of synthesis of acetylenic alcohols". Zhurnal ... Nazarov IN, Kotlyarevskii IL, Ryabchenko VF (1953). "Acetylene derivatives. CLX. ...
https://en.wikipedia.org/wiki/1-Ethynylcyclohexanol
TetrabromoethaneTetrabromoethane
"Acetylene tetrabromide". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational ... A B van Haaften (1969). "Acute Tetrabromoethane (Acetylene Tetrabromide) Intoxication in Man". American Industrial Hygiene ...
https://en.wikipedia.org/wiki/Tetrabromoethane
N-VinylpyrrolidoneN-Vinylpyrrolidone
Subsequently, acetylene is used to introduce the vinyl group. Methylpyrrolidone (NMP) 2-Pyrrolidone (2-Py) "1-Vinyl-2- ... It is produced industrially by vinylation of 2-pyrrolidone, i.e. the base-catalyzed reaction with acetylene. It is the ... "Acetylene Chemistry". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a01_097.pub3. ISBN 3527306730. N- ...
https://en.wikipedia.org/wiki/N-Vinylpyrrolidone
CyclopropylacetyleneCyclopropylacetylene
"CYCLOPROPYL ACETYLENE". chemicalland21.com. Retrieved 31 May 2017. Hudson, C.E.; Bauld, N.L. (1972). "Quantitative analysis of ...
https://en.wikipedia.org/wiki/Cyclopropylacetylene
1,3-Diaminopropane1,3-Diaminopropane
Acetylene zipper. Exceptionally facile contrathermodynamic multipositional isomeriazation of alkynes with potassium 3- ...
https://en.wikipedia.org/wiki/1,3-Diaminopropane
William Stanley SykesWilliam Stanley Sykes
Sykes contributed an entry to the 14th edition of the Encyclopaedia Britannica on the experimental use of acetylene as an ... William Stanley Sykes (1930). "Acetylene in medicine". Encyclopaedia Britannica. Vol. 1 (14 ed.). p. 119. Photographic ...
https://en.wikipedia.org/wiki/William_Stanley_Sykes
François DiederichFrançois Diederich
Diederich, François; Stang, Peter J.; Tykwinski, R. R. (2005). Acetylene Chemistry : chemistry, biology and material science. ... Stang, Peter J.; Diederich, François (1995). Modern acetylene chemistry. Weinheim: VCH. ISBN 3-527-29084-2. OCLC 34027354. " ... chiral macrocyclic and acyclic alleno-acetylenes, amplification of chirality and its transfer from the molecular to the ...
https://en.wikipedia.org/wiki/François_Diederich
DiiodoacetyleneDiiodoacetylene
Henning Hopf; Bernhard Witulski (1995). "Functionalized Acetylenes in Organic Synthesis ‐ The Case of the 1‐Cyano‐ and the 1‐ ... Halogenoacetylenes". In Stang, Peter J.; Diederich, François (eds.). Modern Acetylene Chemistry. Weinheim: VCH. pp. 33-66. doi: ...
https://en.wikipedia.org/wiki/Diiodoacetylene
Jeffrey S. MooreJeffrey S. Moore
Young, James K.; Moore, Jeffrey S. (1995). "Chapter 12: Acetylenes in nanostructures". In Stang, P.J.; Diederich, F. (eds.). ... Modern acetylene chemistry. Weinheim: VCH. pp. 415-418. ISBN 9783527290840. Hill, David J.; Mio, Matthew J.; Prince, Ryan B.; ...
https://en.wikipedia.org/wiki/Jeffrey_S._Moore
DichloroacetyleneDichloroacetylene
"Functionalized Acetylenes in Organic Synthesis ‐ The Case of the 1‐Cyano‐ and the 1‐Halogenoacetylenes". In Stang, Peter J.; ... Diederich, François (eds.). Modern Acetylene Chemistry. Weinheim: VCH. pp. 33-66. doi:10.1002/9783527615278.ch02. ISBN ...
https://en.wikipedia.org/wiki/Dichloroacetylene
NeurineNeurine
Acetylene reactions. Part IV. Formation of trimethylvinyl- and tetramethyl-ammonium hydroxide from acetylene and aqueous ... Synthetically, neurine can be prepared by the reaction of acetylene with trimethylamine. Neurine is unstable and decomposes ...
https://en.wikipedia.org/wiki/Neurine
MetalloproteinMetalloprotein
Living on acetylene. A Primordial Energy Source". In Kroneck, Peter M. H.; Sosa Torres, Martha E. (eds.). The Metal-Driven ...
https://en.wikipedia.org/wiki/Metalloprotein
TungstenTungsten
Acetylene hydratase is an unusual metalloenzyme in that it catalyzes a hydration reaction. Two reaction mechanisms have been ... ten Brink, Felix (2014). "Chapter 2. Living on acetylene. A Primordial Energy Source". In Peter M.H. Kroneck; Martha E. Sosa ...
https://en.wikipedia.org/wiki/Tungsten
Dimethyl acetylenedicarboxylateDimethyl acetylenedicarboxylate
Sahoo, Manoj (2007). "Dimethyl Acetylene Dicarboxylate". Synlett. 2007 (13): 2142-2143. doi:10.1055/s-2007-984894. Bandrowski, ...
https://en.wikipedia.org/wiki/Dimethyl_acetylenedicarboxylate
List of English words of French origin (A-C)List of English words of French origin (A-C)
acétique) acetylene, (Fr. acétylène) achieve, (Old Fr. achever) achievement, (Fr. achèvement) acid, (Fr. acide) aconite, (Fr. ...
https://en.wikipedia.org/wiki/List_of_English_words_of_French_origin_(A–C)
Julius NieuwlandJulius Nieuwland
He is known for his contributions to acetylene research and its use as the basis for one type of synthetic rubber, which ... During his doctoral studies into the chemistry of acetylene, he discovered the chemical compound lewisite, which would later ... In 1920, he successfully polymerized acetylene into divinylacetylene. Elmer Bolton, the Director of Research at DuPont, used ... S2CID 85968031.[permanent dead link] Nieuwland, Julius Arthur (1904). Some Reactions of Acetylene. Notre Dame, Indiana: Notre ...
https://en.wikipedia.org/wiki/Julius_Nieuwland
McKeen Motor Car CompanyMcKeen Motor Car Company
Lighting was originally acetylene. Most of the problems experienced with McKeen cars involved the powerplant and drivetrain. As ...
https://en.wikipedia.org/wiki/McKeen_Motor_Car_Company
CyclooctatetraeneCyclooctatetraene
Reppe's synthesis of cyclooctatetraene, which involves treating acetylene at high pressure with a warm mixture of nickel ... I. Über Cyclooctatetraen" [Ring-forming polymerization of acetylene. I. Cyclooctatetraene]. Justus Liebigs Annalen der Chemie. ... Kunichika, Sango (1953). "Cyclopolyolefins Derived from Acetylene". Bulletin of the Institute for Chemical Research, Kyoto ... one-step synthesis of cyclooctatetraene from acetylene, providing material identical to that prepared by Willstätter. Any ...
https://en.wikipedia.org/wiki/Cyclooctatetraene
TrinitromethaneTrinitromethane
See also: Nieuwland, Julius A.; Vogt, Richard R. (1945). The Chemistry of Acetylene. New York City, New York, USA: Reinhold ... The Italian chemist Adolfo Baschieri discovered that nitroform (Italian: nitroformio) could be produced from acetylene ( ... it was discovered that nitroform can be produced by the reaction of acetylene with anhydrous nitric acid. This method went on ... On the behavior of acetylene with some oxidizers]. Atti della Reale Accademia dei Lincei. 5th series (in Italian). 9 (part I): ...
https://en.wikipedia.org/wiki/Trinitromethane
Calcium carbideCalcium carbide
Applications of calcium carbide include manufacture of acetylene gas, generation of acetylene in carbide lamps, manufacture of ... Approximately 400,000 tonnes are produced this way annually (see Acetylene Preparation). In China, acetylene derived from ... Today acetylene is mainly manufactured by the partial combustion of methane or appears as a side product in the ethylene stream ... CaC2(s) + 2H2O(aq) → C2H2(g) + Ca(OH)2(aq) This reaction was the basis of the industrial manufacture of acetylene, and is the ...
https://en.wikipedia.org/wiki/Calcium_carbide
Oxy Acetylene Welding - Fittings 100Oxy Acetylene Welding - Fittings 100
Acetylene Craftsman Oxy Acetylene 315C Handle Tip 1-1-101 Harris Oxy Acetylene Acetylene Torch Hoses Smith Oxygen Acetylene ... Oxy Acetylene Stage Acetylene Oxygen Acetylene Regulator Gauge Regulator Vts Torch Handle Model Acetylene Propane Acetylene ... Torch Body Welding Torch Kit Oxygen Acetylene Hose Acetylene Heating Acetylene Gas Cutting Heating Torch Tip Oxygen Acetylene ... Cutting Acetylene Hoses Oxy Acetylene Welding Brazing Uniweld Oxygen Refurbished Victor Prest-O-Lite Acetylene Torch Acetylene ...
https://troutunderground.com/Oxy-Acetylene-Welding-Fittings-100/
Acetylene tetrabromide (2005-110) | NIOSH | CDCAcetylene tetrabromide (2005-110) | NIOSH | CDC
Acetylene tetrabromide. CAS No: 79-27-6. NOTE:. (1) Efficacy of Medical Tests has not been evaluated.. (2) NIOSH references ... Acetylene tetrabromide. Editor(s). /Author(s). Specific Medical Test(s) or Examination(s). Reference(s). ...
https://www.cdc.gov/niosh/docs/2005-110/nmed0005.html
Acetylene - Scientific AmericanAcetylene - Scientific American
Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
https://www.scientificamerican.com/article/acetylene2/?error=cookies_not_supported&code=f6b3ebbe-374b-456e-8cb7-53c94548707c
ICSC 0089 - ACETYLENEICSC 0089 - ACETYLENE
The substance may polymerize. Decomposes on heating and increasing pressure. This generates fire and explosion hazard. The substance is a strong reducing agent. It reacts violently with oxidants and fluorine or chlorine under influence of light. This generates fire and explosion hazard. Reacts with copper, silver, mercury and their salts. This produces shock-sensitive compounds (acetylides ...
http://www.ilo.org/dyn/icsc/showcard.display?p_version=2&p_card_id=0089&p_lang=en
Acetylene | C2H2 - PubChemAcetylene | C2H2 - PubChem
Acetylene , C2H2 , CID 6326 - structure, chemical names, physical and chemical properties, classification, patents, literature ...
https://pubchem.ncbi.nlm.nih.gov/compound/acetylene
Chemical Database: Acetylene tetrachloride (EnvironmentalChemistry.com)Chemical Database: Acetylene tetrachloride (EnvironmentalChemistry.com)
This page contains information on the chemical Acetylene tetrachloride including: 51 synonyms/identifiers; U.S. Code of Federal ... Acetylene tetrachloride. Identifications. *Formula: CHCl2CHCl2. Elements: Carbon, Chlorine, Hydrogen. *CAS Number: 79-34-5* ... Acetylene tetrachloride (EnvironmentalChemistry.com),/a,- This page contains information on the chemical Acetylene ... Acetylene tetrachloride*Bonoform*Cellon*Dichloro-2,2-dichloroethane*EPA Pesticide Chemical Code: 078601*Ethane, 1,1,2,2- ...
https://environmentalchemistry.com/yogi/chemicals/cn/Acetylene%A0tetrachloride.html
acetylene clipart & stock photography | Acclaim Images
... acetylene clip art images and photos. RM and RF imagery for all your creative projects! ... acetylene clipart & stock photography. 20. 40. 100. 200. 500. 1000. Images Per Page ...
https://acclaimimages.com/photos-images/acetylene.html
Occupational exposure to acetyleneOccupational exposure to acetylene
Acetylene/poisoning Environmental Exposure Occupational Diseases/chemically Induced Occupational Diseases/prevention & Control ... Title : Occupational exposure to acetylene Corporate Authors(s) : National Institute for Occupational Safety and Health. ... "Criteria document giving recommendations for an occupational exposure standard for acetylene (74862). Sections include ... recommendations for an acetylene standard based on environmental, medical, labeling and posting and other factors; biologic ...
https://stacks.cdc.gov/view/cdc/19368
Oxy Acetylene Welding - Airco RegulatorOxy Acetylene Welding - Airco Regulator
Acetylene Craftsman Oxy Acetylene 315C Handle Tip 1-1-101 Harris Oxy Acetylene Acetylene Torch Hoses Smith Oxygen Acetylene ... Oxy Acetylene Stage Acetylene Oxygen Acetylene Regulator Gauge Regulator Vts Torch Handle Model Acetylene Propane Acetylene ... Airco "piggyback" Acetylene Regulator. Aircopiggyback Acetylene Regulator Old Airco piggyback style acetylene regulator. ... Torch Body Welding Torch Kit Oxygen Acetylene Hose Acetylene Heating Acetylene Gas Cutting Heating Torch Tip Oxygen Acetylene ...
https://troutunderground.com/Oxy-Acetylene-Welding-Airco-Regulator/
Stoichiometry in Combustion of Acetylene | Flinn ScientificStoichiometry in Combustion of Acetylene | Flinn Scientific
Stoichiometry in Combustion of Acetylene demonstrates how to collect varying amounts of acetylene gas and air in small test ... Stoichiometry in Combustion of Acetylene demonstrates how to collect varying amounts of acetylene gas and air in small test ...
https://www.flinnsci.com/stoichiometry-in-combustion-of-acetylene2/vel1804/
TurboTorch A-3 Replacement Tip, Air Acetylene - PexUniverseTurboTorch A-3 Replacement Tip, Air Acetylene - PexUniverse
0386-0101) Complete replacement tip model for Standard (non-self-lighting) air acetylene torches. Features a removable orifice ... This is a complete replacement tip (not just a tip end) for standard, non-self-lighting TurboTorch air acetylene torches. Fits ...
https://www.pexuniverse.com/turbotorch-a-3-replacement-tip
ACETYLENE European Pipe Marker | Graphic ProductsACETYLENE European Pipe Marker | Graphic Products
id:90166,name:ACETYLENE European Pipe Marker,sku:ACETYLENE-EUROPEAN-PIPE-MARKER,price:2.0700,brand:Graphic ... Improve facility safety with Acetylene European Pipe Marker. Outfit your facility with standard pipe markers to convey ...
https://www.graphicproducts.com/product/acetylene-european-pipe-marker/
Harris Acetylene Cutting Tip #2 (1 - 2 in.) | HobartWeldersHarris Acetylene Cutting Tip #2 (1 - 2 in.) | HobartWelders
Harris Acetylene Cutting Tip #2 (1 - 2 in.). 770144 medium-duty-cutting-tips ...
https://www.hobartwelders.com/consumables/oxy-fuel-consumables/harris-acetylene-cutting-tip-2-1-2-in-770144
BCGA issue safety alert revision for acetylene regulator hazardsBCGA issue safety alert revision for acetylene regulator hazards
Due to the occurrence of incidents and potential for explosions involving the use of incompatible regulators with acetylene gas ... Due to its flammable nature, acetylene - commonly used in welding and cutting - has the potential to cause an explosion when ... The use of unsuitable regulators for acetylene is not only dangerous but also constitutes an illegal practice. A regulator not ... Due to the occurrence of incidents and potential for explosions involving the use of incompatible regulators with acetylene gas ...
https://www.gasworld.com/story/bcga-issue-safety-alert-revision-for-acetylene-regulator-hazards/2092291.article/?red=1
Acetylene Cutting Tips - Uniweld Products, Inc.Acetylene Cutting Tips - Uniweld Products, Inc.
Home / Cutting & Welding / Cutting Tips / H-Style Cutting Tips / Acetylene Cutting Tips. Default sorting. Sort by popularity. ...
https://uniweld.com/product-category/cutting-welding/cutting-tips/h-cutting-tips/h-style-acetylene-cutting-tips/
Thermodynamic Properties of Acetylene Using Cubic Equations of State - Wolfram Demonstrations ProjectThermodynamic Properties of Acetylene Using Cubic Equations of State - Wolfram Demonstrations Project
Thermodynamic Properties of Acetylene Using Cubic Equations of State. Initializing live version ... In this Demonstration, the compressibility factor for a single gas chemical species (acetylene) is computed, from which the ... are the critical pressure and temperature for acetylene. For an ideal gas . ... Brian G. Higgins Thermodynamic Properties of Acetylene Using Cubic Equations of State. http://demonstrations.wolfram.com/ ...
https://demonstrations.wolfram.com/ThermodynamicPropertiesOfAcetyleneUsingCubicEquationsOfState/
Bar Mills 2012 HO Acetylene Tank Cluster Unpainted - 3 Groupings - TrainzBar Mills 2012 HO Acetylene Tank Cluster Unpainted - 3 Groupings - Trainz
This is an Bar Mills 2012 HO Scale Acetylene Tank Cluster Unpainted 3 Groupings.Condition: Factory New (C-9)Operational Status ... Bar Mills 2012 HO Acetylene Tank Cluster Unpainted - 3 Groupings. Bar Mills 2012 HO Acetylene Tank Cluster Unpainted - 3 ... Bar Mills 2012 HO Acetylene Tank Cluster Unpainted - 3 Groupings /*! CSS Used from: base.css */ @media all { .contains-media, . ... Decrease quantity for Bar Mills 2012 HO Acetylene Tank Cluster Unpainted - 3 Groupings Increase quantity for Bar Mills 2012 HO ...
https://www.trainz.com/products/bar-mills-2012-ho-acetylene-tank-cluster-unpainted-3-groupings
David Fulmer: Skys Acetylene | Catalogue | New Focus RecordingsDavid Fulmer: Sky's Acetylene | Catalogue | New Focus Recordings
Skys Acetylene was commissioned and premiered by The New York Philharmonic as part of their CONTACT! series. This EP release ... Skys Acetylene was commissioned and premiered by The New York Philharmonic as part of their CONTACT! series. This EP release ... Skys Acetylene is a kaleidoscopic work for flute, harp, percussion, piano, and double bass that balances taut anticipation ... David Fulmers Skys Acetylene was written for and commissioned by the New York Philharmonic on the occasion of their 175th ...
https://www.newfocusrecordings.com/catalogue/david-fulmer-skys-acetylene/
Global fitting of vibration-rotation line positions of acetylene molecule in the far- and middle-infrared regions | (2004) |...Global fitting of vibration-rotation line positions of acetylene molecule in the far- and middle-infrared regions | (2004) |...
Global fitting of vibration-rotation line positions of acetylene molecule in the far- and middle-infrared regions Author(s): ... 3090, 143-149, 1997) the global fitting of the vibration-rotation line positions of acetylene molecule in the spectral range 0 ...
https://spie.org/Publications/Proceedings/Paper/10.1117/12.555541
1.Oxy-Acetylene Welding, Cutting/ Brazing | NCCRS1.Oxy-Acetylene Welding, Cutting/ Brazing | NCCRS
Course 1: Introduction to oxy-acetylene welding; oxy-acetylene equipment; set-up procedures for oxy-acetylene welding; oxy- ... 1.Oxy-Acetylene Welding, Cutting/ Brazing 2.Basic Shield Metal Arc Welding ... acetylene flame adjustment; fusion without filler metal; fusion welding with filler metal; fillet welding lap joint horizontal ... and safe handling and use of oxy-acetylene equipment; identify metals by spark test, magnetic test, physical appearance and ...
http://www.nationalccrs.org/apex-technical-school/1oxy-acetylene-welding-cutting-0
Pressure Regulating Station 684NGA (acetylene) | wittgas.comPressure Regulating Station 684NGA (acetylene) | wittgas.com
Pressure Regulating Station 684NGA (acetylene). Pressure regulating station for the central gas supply up to 353 scfh, ...
https://www.wittgas.com/us/products/pressure-regulators-outlet-points/pressure-regulating-stations/pressure-regulating-station-684nga-acetylene/
How to Make a Metal Ring Using an Oxygen-Acetylene Welding Torch | Kevin CaronHow to Make a Metal Ring Using an Oxygen-Acetylene Welding Torch | Kevin Caron
In this video Arizona sculptor Kevin Caron shows how to make a metal ring using an oxygen-acetylene welding torch. ... Kevin transforms a section of a truck coil spring into a metal ring using an oxygen-acetylene torch, tongs and a big hammer. ... How to Make a Metal Ring Using an Oxygen-Acetylene Welding Torch. ...
https://kevincaron.com/2008/08/29/how-to-make-a-metal-ring-using-an-oxygen-acetylene-welding-torch/
Nextteq Acetylene Detector Tubes 50-1,000 ppm, pk/10 - AFC InternationalNextteq Acetylene Detector Tubes 50-1,000 ppm, pk/10 - AFC International
Nextteq Acetylene Detector Tubes 50-1,000 ppm, pk/10 quantity. Add to cart. SKU: NX104 Categories: Nextteq LLC, Store Tag: ... Home / Nextteq LLC / Nextteq Acetylene Detector Tubes 50-1,000 ppm, pk/10. ...
https://afcintl.com/p/nextteq-acetylene-detector-tubes-50-1000-ppm-pk-10/
Goss KA-125-M12 Acetylene Regulator Kit | PlumbersStockGoss KA-125-M12 Acetylene Regulator Kit | PlumbersStock
Buy now and enjoy the Goss KA-125-M12 Acetylene Regulator Kit from PlumbersStock online - the hardware project leaders. ... This fixture is fueled with acetylene; acetylene is a style of cutting that burns 2 combustible fuel gases to create the flame ... This regulator is designed to go with Goss Hand torch Air acetylene assemblies that are used for the cutting of metal and also ... This Goss KA-125-M Acetylene Regulator Kit is made of a durable heat resistant brass so it can withstand the intense ...
https://www.plumbersstock.com/goss-ka-125-m12-kit-mc-acet-reg-w-c-1200-stand.html
Diamond Tool: 2200 Replacement Oxy-Acetylene Gauge - 200 psiDiamond Tool: 2200 Replacement Oxy-Acetylene Gauge - 200 psi
2200 Replacement Oxy-Acetylene Gauge - 200 psi One-piece threaded polycarbonate lens. Cupped aluminum dial with white ...
https://diamondtool.net/2200-replacement-oxy-acetylene-gauge-200-psi/product/0/b2200
The Oxy-acetylene Handbook First Edition 3rd Printing 1945 Linde 588 pgs HC - IRA Hydraulic Pump Technical support and serviceThe Oxy-acetylene Handbook First Edition 3rd Printing 1945 Linde 588 pgs HC - IRA Hydraulic Pump Technical support and service
The Oxy-acetylene Handbook First Edition 3rd Printing 1945 Linde 588 pgs HC IRA Hydraulic Pump Technical support and service ... The Oxy-acetylene Handbook First Edition 3rd Printing 1945 Linde 588 pgs HC MODELS. Need a CAD or 3D Model? ... The Oxy-acetylene Handbook First Edition 3rd Printing 1945 Linde 588 pgs HC IRA Hydraulic Pump Technical support and service ... The Oxy-acetylene Handbook First Edition 3rd Printing 1945 Linde 588 pgs HC Compare similar products ...
https://www.irandoe.org/sale-21214370-the-oxy-acetylene-handbook-first-edition-3rd-printing-1945-linde-588-pgs-hc.html
Harris 1390 Separable Acetylene Welding and Brazing Tip Size 8 1600100Harris 1390 Separable Acetylene Welding and Brazing Tip Size 8 1600100
Buy Harris 1390 Separable Acetylene Welding and Brazing Tip Size 8 today at the lowest prices anywhere. Fast, free shipping. ... Harris 1390 Separable Acetylene Welding and Brazing Tip Size 13 1600160 $69.00 $73.46 ... Harris 1390 Separable Acetylene Welding and Brazing Tip Size 0 1600020 $27.00 ... Harris 1390 Separable Acetylene Welding and Brazing Tip Size 3 1600050 $27.00 ...
https://www.harrisweldingsupplies.com/harris-1390-separable-acetylene-welding-and-brazing-tip-size-8-1600100/
twin peaks - Acetylene Eyestwin peaks - Acetylene Eyes
Posts about twin peaks written by acetyleneeyes
https://acetylene-eyes.com/tag/twin-peaks/
ACETYLENE 50-1,000 ppm Gas Detection Tubes | Environmental Monitoring SystemsACETYLENE 50-1,000 ppm Gas Detection Tubes | Environmental Monitoring Systems
... we carry ACETYLENE 50-1,000 ppm as part of our quality sampling & calibration offerings. Shop now or give us a call! ... SENSIDYNE DETECTOR TUBE ACETYLENE 50 - 1,000 ppm #101S See Tube datasheet for additional information. Click here: View the ...
https://www.emssales.net/gas-detection/detector-tubes-and-pumps/sensidyne-gas-detector-tubes/sensidyne-tubes-acetylene-50-1-000-ppm.html
AS 4289 Oxygen and Acetylene Gas Reticulation Systems - WA - Australian Business Licence and Information Service
AS 4289 Oxygen and Acetylene Gas Reticulation Systems - Western Australia. Description. You may need to comply with this ... AS 4289-1995 Oxygen and Acetylene Gas Reticulation Systems (Opens in new window) ... operation and maintenance of gaseous oxygen and acetylene piping, manifolds and equipment used for the reticulation of these ... standard if you intend to design, manufacture or use oxygen and acetylene gas reticulation systems. ...
https://ablis.business.gov.au/service/wa/australian-standard-as-4289-oxygen-and-acetylene-gas-reticulation-systems/30762
WeldingOxygen and acetyleneTorchRegulatorGasesHydrogenBenzeneHydrocarbon gasArgonCombustibleEthyleneCutting TipFlameCylindersTemperatureTorchesNitrogenFurnace blackDescriptorSpecially designedFuelTubesCarbonHydrocarbonsPipeLampsSafetyStandardEquipmentPlantMadeGeneralMarket
Welding4
  • Due to its flammable nature, acetylene - commonly used in welding and cutting - has the potential to cause an explosion when utilised with an unsuitable regulator. (gasworld.com)
  • This regulator is designed to go with Goss Hand torch Air acetylene assemblies that are used for the cutting of metal and also welding. (plumbersstock.com)
  • Application： acetylene hose designed for welding, cutting and allied processes. (everflex-rubber-hose.com)
  • Specific welding hose catering for oxygen, carbon dioxide, nitrogen, argon and fuel gases including acetylene, natural gas, methane and propane available upon request. (everflex-rubber-hose.com)
Oxygen and acetylene5
  • Suitable for Use with Oxygen and Acetylene. (troutunderground.com)
  • You may need to comply with this standard if you intend to design, manufacture or use oxygen and acetylene gas reticulation systems. (business.gov.au)
  • This standard specifies requirements for the design, assembly, installation, testing, operation and maintenance of gaseous oxygen and acetylene piping, manifolds and equipment used for the reticulation of these gases in industrial and laboratory applications. (business.gov.au)
  • This balanced Blowpipe is for versatile applications using Oxygen and Acetylene. (hindmedico.com)
  • Figure 11-41 illustrates the differences between oxygen and acetylene hose nuts. (halversoncts.com)
Torch3
  • Up for auction is a Purox R-2047 2 stage acetylene torch regulator gauge. (troutunderground.com)
  • Must be able to use oxy/acetylene torch for copper soldering. (utilitytrailer.com)
  • However, one torch cutter was overexposed to cadmium and another worker (and possibly three others) was overexposed to CO. The elevated cadmium and CO levels were the result of workers using oxy-acetylene cutting torches and gasoline-powered cutting saws. (cdc.gov)
Regulator6
  • Airco 8401 Acetylene Pressure Regulator Looks good, from estate sale. (troutunderground.com)
  • This Goss KA-125-M Acetylene Regulator Kit is a genuine Goss regulator perfect for professional welders and recreational applications. (plumbersstock.com)
  • This Goss KA-125-M Acetylene Regulator Kit is made of a durable heat resistant brass so it can withstand the intense temperatures associated with this style of cutting. (plumbersstock.com)
  • This Goss KA-125-M Acetylene Regulator Kit comes with the outstanding protection of the Limited three year Goss Warranty. (plumbersstock.com)
  • Acetylene is a regulator for plant growth. (abiblo.com)
  • The regulator and hose fittings used for acetylene have left-hand threads , and the hose fitting nut may be marked " ACE . (halversoncts.com)
Gases5
  • This hose is compatible with all fuel gases including oxy/acetylene, propane, propylene, and MAPP. (troutunderground.com)
  • Due to the occurrence of incidents and potential for explosions involving the use of incompatible regulators with acetylene gas, the British Compressed Gases Association (BCGA) has issued a revision to Safety Alert 01 - The hazards of using incompatible regulatory with acetylene. (gasworld.com)
  • acetylene is a style of cutting that burns 2 combustible fuel gases to create the flame rather than air and 1 combustible, acetylene combined with oxygen from a separate tank for example. (plumbersstock.com)
  • Acetylene hose only for fuel service and is compatible with commonly used fuel gases, including acetylene, hydrogen, natural gas, propane and propylene. (everflex-rubber-hose.com)
  • However, the red hose is usually used for carrying acetylene or other fuel gases. (halversoncts.com)
Hydrogen1
Benzene3
  • Gadre, Shridhar R. (2002) H...π complexes of acetylene-benzene: a matrix isolation and computational study Journal of Molecular Structure, 613 (1-3). (ias.ac.in)
  • Formation of the adduct was evidenced by shifts in the vibrational frequencies of the acetylene and benzene submolecules in the complex. (ias.ac.in)
  • Though our computations showed two types of 1:1 complexes-one where the acetylene is the proton donor and another where the benzene is the proton donor, experimentally, we observed only the complex, where acetylene acts as a proton donor to the p cloud of benzene. (ias.ac.in)
Hydrocarbon gas1
  • Acetylene is a form of hydrocarbon gas. (abiblo.com)
Argon1
  • 700 Series Provides A Wide Range Of Utility For Handling Oxygen, Acetylene, Nitrogen, Helium, Argon And Other Gas Cylinders. (handtrucksrus.com)
Combustible2
  • The non-blooming tube of acetylene hose minimizes the migration of combustible waxes or plasticizers to the surface of the rubber, and the multiple plies of textile reinforcement provide flexibility. (everflex-rubber-hose.com)
  • If oxygen were to pass down a used acetylene hose, a combustible mixture would form. (halversoncts.com)
Ethylene2
  • The chemisorption of acetylene and ethylene on platinum (111) surfaces for T ≥ 300 K has been studied with ultraviolet photoelectron spectroscopy (UPS) at 21.2 eV. (northwestern.edu)
  • Ethylene is founf to dehydrogenate at room temperature to the stable acetylene species on Pt(111) surfaces. (northwestern.edu)
Cutting Tip1
Flame2
  • Acetylene hose featuring a flame resistant and oil resistant tube and cover. (everflex-rubber-hose.com)
  • With the acetylene-oxygen-flame temperatures of up to 3100 °C are achievable. (ewo.de)
Cylinders1
  • An entire team of fire-fighting robots was recently unveiled by defense contractor QinetiQ at a demonstration in London, where a quartet of robots were more than battle-ready to tackle the particular risk of fires involving cylinders of the industrial gas acetylene. (geekspeak.org)
Temperature1
  • are the critical pressure and temperature for acetylene. (wolfram.com)
Torches2
  • This is a complete replacement tip (not just a tip end) for standard, non-self-lighting TurboTorch air acetylene torches. (pexuniverse.com)
  • Hose for oxygen and burnable gas according to DIN EN ISO 3821 for connetion of torches and bottle (cut goods - roll 40 m). (ewo.de)
Nitrogen1
  • Nitrogen fixation was measured in situ for the first time by acetylene reduction for a greyish mat composed of Scytonema julianum in cave-like environments. (usf.edu)
Furnace black1
  • Carbon black is variously known as acetylene black, channel black, furnace black, lampblack or thermal black depending on the specific process by which it is manufactured. (who.int)
Descriptor1
  • Acetylene" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (jefferson.edu)
Specially designed1
  • However, reels specially designed for oxygen/acetylene hose can efficiently handle much longer lengths of hose, Figure 11-37 . (halversoncts.com)
Fuel3
  • Acetylene Tube Borium is an oxy-fuel rod intended for metal-to-earth applications involving extreme abrasion and low impact. (tungco.com)
  • Acetylene hose is available in long continuous lengths, providing maximum versatility and ease of handling in a variety of applications where only acetylene hose is needed or where the fuel gas and oxygen sources are separated, and twin line hose is not practical. (everflex-rubber-hose.com)
  • In the present study an experimental investigation was carried out with acetylene as an alternative fuel in a compression ignition engine. (nitrkl.ac.in)
Tubes1
  • Stoichiometry in Combustion of Acetylene demonstrates how to collect varying amounts of acetylene gas and air in small test tubes. (flinnsci.com)
Carbon1
  • In MetaCyc pathway analysis, the major pathways of metabolism existed in the bacteria from the two hot springs were 'pyruvate fermentation to isobutanol (engineered)', 'acetylene degradation', 'carbon fixation pathways in prokaryotes', 'nitrate reduction I (denitrification)', 'methanogenesis from acetate', 'superpathway of glucose and xylose degradation', etc. (bvsalud.org)
Hydrocarbons1
  • WO2013186291A1 ] The invention relates to a method for producing acetylene and synthesis gas by partially oxidizing hydrocarbons by means of oxygen. (epo.org)
Pipe1
Lamps1
  • In the renovation the locomotive was rebuilt to her 1920s outfit by painting her black instead of dark green, the valve gear was rebuilt to original, the smoke stack was changed, and the acetylene lamps of the locomotive were rebuilt. (jokioistenmuseorautatie.fi)
Safety1
  • Title : Occupational exposure to acetylene Corporate Authors(s) : National Institute for Occupational Safety and Health. (cdc.gov)
Standard2
  • Criteria document giving recommendations for an occupational exposure standard for acetylene (74862). (cdc.gov)
  • Original English text of CSN EN Standard. (en-standard.eu)
Equipment1
Plant1
  • As soon as they go into operation, also the flares of the acetylene plant and the aromatics plant on Friesenheimer Insel can be seen from far away. (basf.com)
Made1
  • Gas black" made from natural gas, known as "black" by oil, and "acetylene black" made from acetylene. (helios.net.cn)
General1
Market1
  • Acetylene Market Overview The acetylene market size is estimated to reach USD13.6 billion by 2027 after growing at a CAGR of around 4.3% from 2022 to 2027. (icrowdnewswire.com)
RTECS:AO9600000 - Acetylene - The Registry of Toxic Effects of Chemical Substances | CDC/NIOSH
RTECS:AO9600000 - Acetylene - The Registry of Toxic Effects of Chemical Substances | CDC/NIOSH (cdc.gov)
FACE Program: New Jersey Case Report 05NJ007 | NIOSH | CDC
FACE Program: New Jersey Case Report 05NJ007 | NIOSH | CDC (cdc.gov)
Scientific American Supplements Volume 50, Issue 1282supp, July 28, 1900
Scientific American Supplements Volume 50, Issue 1282supp, July 28, 1900 (scientificamerican.com)
Hazard Index - Safety Checklist Program for Schools | NIOSH | CDC
Hazard Index - Safety Checklist Program for Schools | NIOSH | CDC (cdc.gov)
Scientific American Supplements Volume 42, Issue 1082supp, September 26, 1896
Scientific American Supplements Volume 42, Issue 1082supp, September 26, 1896 (scientificamerican.com)
NIOSH's CBRN Respirator Approval Program | NPPTL | NIOSH | CDC
NIOSH's CBRN Respirator Approval Program | NPPTL | NIOSH | CDC (cdc.gov)
Alphabetical Method Listing - A - NMAM 4th Edition | NIOSH | CDC
Alphabetical Method Listing - A - NMAM 4th Edition | NIOSH | CDC (cdc.gov)
Catalyst deactivation via decomposition into single atoms and the role of metal loading | Nature Catalysis
Catalyst deactivation via decomposition into single atoms and the role of metal loading | Nature Catalysis (nature.com)
Search Results - - 6,546 Results - The Portal to Texas History
Search Results - - 6,546 Results - The Portal to Texas History (texashistory.unt.edu)
ATSDR - Hazardous Substances Emergency Events Surveillance (HSEES) 1997
ATSDR - Hazardous Substances Emergency Events Surveillance (HSEES) 1997 (atsdr.cdc.gov)
ATSDR - Hazardous Substances Emergency Events Surveillance (HSEES) 2005 Annual Report
ATSDR - Hazardous Substances Emergency Events Surveillance (HSEES) 2005 Annual Report (atsdr.cdc.gov)
Thomas Hirchak Company Auction Catalog - (1439) Autobody Shop Equipment Online Auctions | Proxibid
Thomas Hirchak Company Auction Catalog - (1439) Autobody Shop Equipment Online Auctions | Proxibid (proxibid.com)
Propane Torch with Three Burners
Propane Torch with Three Burners (harborfreight.com)
Acetylene clipart & stock photography | Acclaim Images
Acetylene clipart & stock photography | Acclaim Images (acclaimimages.com)
Oxy Acetylene Welding - Fittings 100
Oxy Acetylene Welding - Fittings 100 (troutunderground.com)
Trichloroethylene Toxicity: What is Trichloroethylene? | Environmental Medicine | ATSDR
Trichloroethylene Toxicity: What is Trichloroethylene? | Environmental Medicine | ATSDR (atsdr.cdc.gov)
Steam locomotives
Steam locomotives (jokioistenmuseorautatie.fi)
Atomic Devices and Instrumentation Group | NIST
Atomic Devices and Instrumentation Group | NIST (nist.gov)
Occupational exposure to acetylene
Occupational exposure to acetylene (stacks.cdc.gov)
Materials | Free Full-Text | Recent Advances in Ethylene Gas Detection
Materials | Free Full-Text | Recent Advances in Ethylene Gas Detection (mdpi.com)
Chalumeaux pour braser le cuivre et soudobrasage de l'acier sans bouteille d'oxygène et sans acetylene. - ONLYGAZ
Chalumeaux pour braser le cuivre et soudobrasage de l'acier sans bouteille d'oxygène et sans acetylene. - ONLYGAZ (onlygaz.com)
PDF] Molecular Carbon Chains and Rings in TMC-1 | Semantic Scholar
PDF] Molecular Carbon Chains and Rings in TMC-1 | Semantic Scholar (semanticscholar.org)
Bis-MPA Azide Dendron, Acetylene Core, Generation 2 | Polymer Factory
Bis-MPA Azide Dendron, Acetylene Core, Generation 2 | Polymer Factory (polymerfactory.com)
June 15, 1895 - Scientific American
June 15, 1895 - Scientific American (scientificamerican.com)
May 01, 1903 - Scientific American
May 01, 1903 - Scientific American (scientificamerican.com)
Alcynes - classification thématique - Encyclopædia Universalis‎
Alcynes - classification thématique - Encyclopædia Universalis‎ (universalis.fr)
The Feast Rankings | FINAL FANTASY XIV, The Lodestone
The Feast Rankings | FINAL FANTASY XIV, The Lodestone (eu.finalfantasyxiv.com)
Heterogeneity of Exercising Muscle Blood Flow and O2
Heterogeneity of Exercising Muscle Blood Flow and O2 (medscape.com)
Danger Acetylene Flammable Sign
Danger Acetylene Flammable Sign (mysafetysign.com)
Nitrogenase activity by biological soil crusts in cold sagebrush steppe ecosystems | SpringerLink
Nitrogenase activity by biological soil crusts in cold sagebrush steppe ecosystems | SpringerLink (link.springer.com)
Pathology of Eosinophilic Pneumonia: Definition, Epidemiology, Etiology
Pathology of Eosinophilic Pneumonia: Definition, Epidemiology, Etiology (emedicine.medscape.com)
Orion Engineered Carbons | Coatings World
Orion Engineered Carbons | Coatings World (coatingsworld.com)
DailyMed - CARBON DIOXIDE gas
DailyMed - CARBON DIOXIDE gas (dailymed.nlm.nih.gov)
Melting Torches
Melting Torches (fdjtool.com)
Abstract for RoC MGRAPH-05
Abstract for RoC MGRAPH-05 (ntp.niehs.nih.gov)
ATSDR - Hazardous Substances Emergency Events Surveillance (HSEES) 2001
ATSDR - Hazardous Substances Emergency Events Surveillance (HSEES) 2001 (atsdr.cdc.gov)