• The optical emission gave us information on the quantitative analysis of the gas species of atomic nitrogen (N), atomic oxygen (O), and carbon monoxide (CO) and the qualitative analysis of carbon nitride (CN) species in the plasma. (aip.org)
  • Concentrations of carbon-monoxide (630080), formaldehyde (50000) and polymethylene-polyphenyl-isocyanate (9016879) also exceeded current OSHA exposure limits. (cdc.gov)
  • Carbon monoxide (CO) - this is a colourless and tasteless poisonous gas produced by gas appliances and engines when there is not sufficient air for them to work correctly. (hse.gov.uk)
  • Carbon monoxide can kill. (hse.gov.uk)
  • Chemicals can be solids (e.g. dusts, fibres), liquids or mists (e.g. bleach) or gases / vapours (e.g. carbon monoxide, chlorine or ammonia). (hsa.ie)
  • Chemicals include those that are brought into the workplace and used for processing (e.g. solvents and cleaning agents) and those that are generated by a process or work activity (such as fumes from welding / soldering) or generated as waste or residue (such as carbon monoxide from engine or exhausts). (hsa.ie)
  • Ptolemy sampled the atmosphere entering tubes at the top of the lander and identified water vapor, carbon monoxide and carbon dioxide, along with smaller amounts of carbon-bearing organic compounds, including formaldehyde. (universetoday.com)
  • Selective reduction and homologation of carbon monoxide by organometallic iron complexes. (nottingham.ac.uk)
  • Phosgene is produced commercially by chlorinating carbon monoxide. (cdc.gov)
  • It produces injury through several mechanisms, including thermal injury to the upper airway, irritation or chemical injury to the airways from soot, asphyxiation, and toxicity from carbon monoxide (CO) and other gases such as cyanide (CN). (medscape.com)
  • However, cyanosis is an unreliable indicator of hypoxia because neither carbon monoxide nor CN cause cyanosis. (medscape.com)
  • More than 200 of these are known poisons, such as carbon monoxide, hydrogen cyanide, and methyl isocyanate. (ochsner.org)
  • Phosgene decomposes on heating above 300 C producing chlorine and carbon monoxide. (inchem.org)
  • Faulty valves allowed about 40 tonnes of a lethal cocktail of gases, including methyl isocyanate, hydrogen cyanide and carbon monoxide, to leak from a tank in the plant in Madhya Pradesh on December 3, 1984. (bhopal.net)
  • In workers with heart disease, an increase in carbon monoxide may lead to early onset heart attacks and arrhythmias (irregular heartbeats). (cdc.gov)
  • A monofunctional isocyanate of industrial significance is methyl isocyanate (MIC), which is used in the manufacture of pesticides. (wikipedia.org)
  • image: ALMA has observed stars like the Sun at a very early stage in their formation and found traces of methyl isocyanate -- a chemical building block of life. (eurekalert.org)
  • This image shows the spectacular region of star formation where methyl isocyanate was found. (eurekalert.org)
  • Two teams of astronomers have harnessed the power of the Atacama Large Millimeter/submillimeter Array ( ALMA ) in Chile to detect the prebiotic complex organic molecule methyl isocyanate [1] in the multiple star system IRAS 16293-2422. (eurekalert.org)
  • Following the discovery of sugars, we've now found methyl isocyanate. (eurekalert.org)
  • Each team identified and isolated the signatures of the complex organic molecule methyl isocyanate [4]. (eurekalert.org)
  • The new results from ALMA show that methyl isocyanate gas surrounds each of these young stars. (eurekalert.org)
  • Our laboratory experiments show that methyl isocyanate can indeed be produced on icy particles under very cold conditions that are similar to those in interstellar space This implies that this molecule -- and thus the basis for peptide bonds -- is indeed likely to be present near most new young solar-type stars. (eurekalert.org)
  • Methyl isocyanate contains carbon, hydrogen, nitrogen and oxygen atoms in the chemical configuration CH3NCO. (eurekalert.org)
  • The amount of methyl isocyanate they detected -- the abundance -- with respect to molecular hydrogen and other tracers is comparable to previous detections around two high-mass protostars (i.e. within the massive hot molecular cores of Orion KL and Sagittarius B2. (eurekalert.org)
  • It found 16 in all including methyl isocyanate, acetone, propionaldehyde and acetamide that had never been seen in comets before. (universetoday.com)
  • The mechanism was clarified according to the analysis with two plasmas generated with the gas mixture of (1) nitrogen and carbon dioxide and (2) nitrogen and oxygen. (aip.org)
  • In terms of bonding, isocyanates are closely related to carbon dioxide (CO2) and carbodiimides (C(NR)2). (wikipedia.org)
  • The carbon dioxide functions as a blowing agent. (wikipedia.org)
  • Use dry chemical, carbon dioxide or alcohol-resistant foam. (chemicalbook.com)
  • Finnish research has previously managed to use carbon dioxide from the air to make a protein used in the food industry. (kiilto.com)
  • In the research led by VTT, carbon dioxide and hydrogen extracted from air are used to make various raw materials for the manufacture of adhesives, for example. (kiilto.com)
  • In her doctoral dissertation, R&D Manager Soilikki Kotanen is currently studying how polyurethane adhesives can be manufactured without isocyanate, using chemicals made from carbon dioxide. (kiilto.com)
  • It has been possible to make raw materials from hydrogen and carbon dioxide already before, but the manufacturing process has been unviable because it has created more carbon dioxide than it captures. (kiilto.com)
  • In this one-step process, polyurethane was formed by the reaction of the isocyanates with the hydroxyl-functional groups from the polyester, while its gas phase was formed by the generation of carbon dioxide. (iqsdirectory.com)
  • The polyol's trace water reacts to isocyanate, creating carbon dioxide and foaming. (tatayoung.com)
  • For the submission substance, this means very rapid hydrolysis to form 3-aminopropyltriethoxysilane (CAS 919-30-2) as an intermediate hydrolysis product and carbon dioxide. (europa.eu)
  • DOE also estimates emissions of carbon dioxide (CO 2 ), a greenhouse gas, from burning fossil fuels to generate energy (mainly natural gas on site and natural gas and coal for electricity production). (nationalacademies.org)
  • In water, phosgene is sparingly soluble and decomposes to hydrochloric acid and carbon dioxide. (inchem.org)
  • Detailed research was carried out on the effect of various types and amounts of blowing agents (e.g. carbon dioxide, cyclopentane, perfluoroalkanes), surfactants, catalysts, fillers and isocyanates on the nucleation process. (dcu.ie)
  • Environmental and medical surveys were conducted on April 4 to 7, 1977, and June 7 to 9, 1977, to determine employee exposures to dust fumes, smoke and gases from welding and plasma arc cutting, isocyanate (661201) vapors and x-ray radiation at the General American Transportation Corporation (SIC-3743) in Masury, Ohio. (cdc.gov)
  • It is formed by thermal decomposition of chlorinated solvents, e.g., chloroform, carbon tetrachloride, tri- and tetra-chloroethylene and methylene chloride, as well as by the thermal degradation of chlorinated polymers. (inchem.org)
  • Local ventilation should be instituted to control excessive emissions, respiratory protection should be used, fibrous glass insulation treated with resin materials and used to seal annealing furnace doors should be substituted with a safer material, undue exposure to isocyanates should be avoided when handling urethane foams, and continuous surveillance should be maintained on all radiography equipment. (cdc.gov)
  • Isocyanates overview - products that contain isocyanates include paints, coatings, foams and glues. (hse.gov.uk)
  • Further refining of blowing agents, polyether polyols, and polymeric isocyanates led to the advancement from flexible polyurethane foams to rigid polyurethane foams. (iqsdirectory.com)
  • It was shown that these cyclic carbonates can be utilized as prepolymers for the synthesis of non-isocyanate polyurethanes (NIPU). (uni-rostock.de)
  • Two industrially important chemicals where CO 2 utilization can have a significant impact on sustainability are the production of aromatic carbamates, which may be potential precursors of isocyanates for the polyurethane industry, and the production of dimethylcarbonate (DMC). (sintef.no)
  • GigaPleat is available with a wide range of adsorbent media such as ion exchange resins or activated carbon, adapted to the different chemicals observed in microelectronic facilities including, acids, bases, condensables, oxidants, VOC, dopants and refractory compounds. (camfil.com)
  • however, the process often involves the use of hazardous chemicals including methylene chloride, acids, and isocyanates. (cdc.gov)
  • Exposure to isocyanates can create a risk of asthma and dermatitis. (hse.gov.uk)
  • However, its manufacturing process requires isocyanates, exposure to which creates a health hazard that can result in occupational asthma. (kiilto.com)
  • In organic chemistry, isocyanate is the functional group with the formula R−N=C=O. Organic compounds that contain an isocyanate group are referred to as isocyanates. (wikipedia.org)
  • An organic compound with two isocyanate groups is known as a diisocyanate. (wikipedia.org)
  • 1] A complex organic molecule is defined in astrochemistry as consisting of six or more atoms, where at least one of the atoms is carbon. (eurekalert.org)
  • COSAC analyzed samples that entered tubes at the bottom of the lander and found ice-poor dust grains that were rich in organic compounds containing carbon and nitrogen. (universetoday.com)
  • The combustion of organic materials, particularly if it is incomplete, may also give rise to more complex molecules in the smoke plume, which may typically include longer carbon chains and multiple carbon-rings. (springer.com)
  • The demand in organic carbon by heterotrophic microbiota from the dark ocean, the Earth's main remineralizers, exceeds the production by phytoplankton from the sunlit ocean [ 2 ]. (biomedcentral.com)
  • Rather, the equal densities of atomic nitrogen and oxygen species in the plasma could be effective in forming NCO groups on the CNT surface: the NCO groups should form by N, O, and carbon (C) species on the CNT surface. (aip.org)
  • Novel nano-cellulose based nano-structures modified with hyper-branched polymers were prepared by using isocyanate linking chemistry. (4spe.org)
  • Reducing carbodiimides (RN=C=NR) and isocyanates (RN=C=O) is an appealing route to formamidine and formamide functional groups, which appear, for example, in biologically active compounds. (chemistryviews.org)
  • Using this catalyst, the team performed hydroboration reactions of seven carbodiimides and nine isocyanates with pinacolborane at room temperature. (chemistryviews.org)
  • O. Maduka Ogba, Allegra L. Liberman-Martin, Chapman University, Orange, CA, USA, and colleagues have developed a method for the selective hydroboration of carbodiimide and isocyanate substrates (pictured above) using Lewis-basic carbon catalysts. (chemistryviews.org)
  • The team compared different classes of neutral carbon Lewis-basic catalysts, including both cyclic and acyclic carbodiphosphoranes ( 1 - 3 ), a carbophosphinocarbene ( 4 ), and a carbodicarbene ( 5 ). (chemistryviews.org)
  • Isocyanates are electrophiles, and as such they are reactive toward a variety of nucleophiles including alcohols, amines, and even water having a higher reactivity compared to structurally analogous isothiocyanates. (wikipedia.org)
  • Catalyst-free Hydrophosphinylation of Isocyanates and Isothiocyanates under Low-Added-Solvent Conditions ACS SUSTAINABLE CHEMISTRY & ENGINEERING. (nottingham.ac.uk)
  • A reactive glue (isocyanate) that holds everything together in three dimensions, like tendons connecting muscle to bone. (seismicskate.com)
  • My only worry would be safety as most resins use isocyanates and they are terrible for the respiratory system, and to add it can't be filtered out unless it's through a carbon chemical cartridge in a respirator. (geekhack.org)
  • PIR foam is made by mixing a polyol blend with an isocyanate. (nestaan.nl)
  • During a fire PIR foam creates a carbon skin that prevents a fast expansion of the fire. (nestaan.nl)
  • Isocyanate is one of the components in broadly all foam products, such as foam mattresses, inner liners in cars, cushioning in car seats, chairs, and sofas. (bamboobatu.com)
  • Isocyanates are common intermediates in the synthesis of primary amines via hydrolysis: Hofmann rearrangement, a reaction in which a primary amide is treated with a strong oxidizer such as sodium hypobromite or lead tetraacetate to form an isocyanate intermediate. (wikipedia.org)
  • Three rearrangement reactions involving nitrenes give isocyanates: Schmidt reaction, a reaction where a carboxylic acid is treated with ammonia and hydrazoic acid yielding an isocyanate. (wikipedia.org)
  • Lossen rearrangement, the conversion of a hydroxamic acid to an isocyanate via the formation of an O-acyl, sulfonyl, or phosphoryl intermediate. (wikipedia.org)
  • Isocyanates should not be confused with cyanate esters and isocyanides, very different families of compounds. (wikipedia.org)
  • 8. The use of this product can help save people's energy costs and reduce carbon emissions. (dmsseals.com)
  • For the last 20 years, we have revolutionised molecular contamination control in microelectronic facilities with the introduction of GigaPleat™ , the cleanest product on the market designed for cleanroom applications where activated carbon particle emissions and outgassing cannot be tolerated. (camfil.com)
  • Oceanic microbiomes provide a pivotal ecosystem service by buffering the rise of atmospheric CO 2 through carbon sequestration in the ocean's interior mainly via the biological carbon pump [ 1 ]. (biomedcentral.com)
  • The next thing we can do, is to put carbon bearings into the pump. (bamboobatu.com)
  • The first magnetically coupled pump for isocyanate has been running non-stop for 10-12 years now. (bamboobatu.com)
  • Carbon is a product of the reaction of diisocyanates with water. (iqsdirectory.com)
  • Similarly, n-butyl isocyanate (CAS 111-36-4) was reported to undergo complete hydrolysis in water within a few minutes at 20°C (OECD 2005). (europa.eu)
  • The cyanate (cyanate ester) functional group (R−O−C≡N) is arranged differently from the isocyanate group (R−N=C=O). Isocyanides have the connectivity R−N≡C, lacking the oxygen of the cyanate groups. (wikipedia.org)
  • That means its overall production, use and disposal from cradle to grave do not add carbon to the environment, but actually reduces carbon and global warming potential. (greenbuildingsupply.com)
  • Complementarily, alkyl isocyanates form by displacement reactions involving alkyl halides and alkali metal cyanates. (wikipedia.org)
  • Isocyanates participate in Diels-Alder reactions, functioning as dienophiles. (wikipedia.org)
  • R2NC(O)NR'C(O)NHR''}}} Reaction between a di-isocyanate and a compound containing two or more amine groups produces long polymer chains known as polyureas. (wikipedia.org)
  • There are various types of isocyanate, but common to all of them is that they react to the humidity of the air, thus forming very hard crystals which wear the pumps and the mechanical shaft seals, if any. (bamboobatu.com)