Methanol: A colorless, flammable liquid used in the manufacture of FORMALDEHYDE and ACETIC ACID, in chemical synthesis, antifreeze, and as a solvent. Ingestion of methanol is toxic and may cause blindness.Solvents: Liquids that dissolve other substances (solutes), generally solids, without any change in chemical composition, as, water containing sugar. (Grant & Hackh's Chemical Dictionary, 5th ed)Plant Extracts: Concentrated pharmaceutical preparations of plants obtained by removing active constituents with a suitable solvent, which is evaporated away, and adjusting the residue to a prescribed standard.Alcohol Oxidoreductases: A subclass of enzymes which includes all dehydrogenases acting on primary and secondary alcohols as well as hemiacetals. They are further classified according to the acceptor which can be NAD+ or NADP+ (subclass 1.1.1), cytochrome (1.1.2), oxygen (1.1.3), quinone (1.1.5), or another acceptor (1.1.99).Hexanes: Six-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives. Various polyneuropathies are caused by hexane poisoning.Water: A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Acetonitriles: Compounds in which a methyl group is attached to the cyano moiety.Formates: Derivatives of formic acids. Included under this heading are a broad variety of acid forms, salts, esters, and amides that are formed with a single carbon carboxy group.Chloroform: A commonly used laboratory solvent. It was previously used as an anesthetic, but was banned from use in the U.S. due to its suspected carcinogenicity.Chromatography, High Pressure Liquid: Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed.Alcohols: Alkyl compounds containing a hydroxyl group. They are classified according to relation of the carbon atom: primary alcohols, R-CH2OH; secondary alcohols, R2-CHOH; tertiary alcohols, R3-COH. (From Grant & Hackh's Chemical Dictionary, 5th ed)Methylobacterium extorquens: A species of METHYLOBACTERIUM which can utilize acetate, ethanol, or methylamine as a sole carbon source. (From Bergey's Manual of Determinative Bacteriology, 9th ed)Acetone: A colorless liquid used as a solvent and an antiseptic. It is one of the ketone bodies produced during ketoacidosis.1-Propanol: A colorless liquid made by oxidation of aliphatic hydrocarbons that is used as a solvent and chemical intermediate.Pichia: Yeast-like ascomycetous fungi of the family Saccharomycetaceae, order SACCHAROMYCETALES isolated from exuded tree sap.Methylene Chloride: A chlorinated hydrocarbon that has been used as an inhalation anesthetic and acts as a narcotic in high concentrations. Its primary use is as a solvent in manufacturing and food technology.Toluene: A widely used industrial solvent.DimethylformamideMethylococcaceae: A family of gram-negative, aerobic bacteria utilizing only one-carbon organic compounds and isolated from in soil and water.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)PaintMagnetic Resonance Spectroscopy: Spectroscopic method of measuring the magnetic moment of elementary particles such as atomic nuclei, protons or electrons. It is employed in clinical applications such as NMR Tomography (MAGNETIC RESONANCE IMAGING).Models, Molecular: Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures.2-Propanol: An isomer of 1-PROPANOL. It is a colorless liquid having disinfectant properties. It is used in the manufacture of acetone and its derivatives and as a solvent. Topically, it is used as an antiseptic.Molecular Structure: The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.Euryarchaeota: A phylum of ARCHAEA comprising at least seven classes: Methanobacteria, Methanococci, Halobacteria (extreme halophiles), Archaeoglobi (sulfate-reducing species), Methanopyri, and the thermophiles: Thermoplasmata, and Thermococci.PicratesPlant Bark: The outer layer of the woody parts of plants.Formaldehyde: A highly reactive aldehyde gas formed by oxidation or incomplete combustion of hydrocarbons. In solution, it has a wide range of uses: in the manufacture of resins and textiles, as a disinfectant, and as a laboratory fixative or preservative. Formaldehyde solution (formalin) is considered a hazardous compound, and its vapor toxic. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p717)Dimethyl Sulfoxide: A highly polar organic liquid, that is used widely as a chemical solvent. Because of its ability to penetrate biological membranes, it is used as a vehicle for topical application of pharmaceuticals. It is also used to protect tissue during CRYOPRESERVATION. Dimethyl sulfoxide shows a range of pharmacological activity including analgesia and anti-inflammation.Thermodynamics: A rigorously mathematical analysis of energy relationships (heat, work, temperature, and equilibrium). It describes systems whose states are determined by thermal parameters, such as temperature, in addition to mechanical and electromagnetic parameters. (From Hawley's Condensed Chemical Dictionary, 12th ed)Solutions: The homogeneous mixtures formed by the mixing of a solid, liquid, or gaseous substance (solute) with a liquid (the solvent), from which the dissolved substances can be recovered by physical processes. (From Grant & Hackh's Chemical Dictionary, 5th ed)Protein Conformation: The characteristic 3-dimensional shape of a protein, including the secondary, supersecondary (motifs), tertiary (domains) and quaternary structure of the peptide chain. PROTEIN STRUCTURE, QUATERNARY describes the conformation assumed by multimeric proteins (aggregates of more than one polypeptide chain).Hydrogen-Ion Concentration: The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)PQQ Cofactor: A pyrrolo-quinoline having two adjacent keto-groups at the 4 and 5 positions and three acidic carboxyl groups. It is a coenzyme of some DEHYDROGENASES.Kinetics: The rate dynamics in chemical or physical systems.Temperature: The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.Organic Chemicals: A broad class of substances containing carbon and its derivatives. Many of these chemicals will frequently contain hydrogen with or without oxygen, nitrogen, sulfur, phosphorus, and other elements. They exist in either carbon chain or carbon ring form.Ethanol: A clear, colorless liquid rapidly absorbed from the gastrointestinal tract and distributed throughout the body. It has bactericidal activity and is used often as a topical disinfectant. It is widely used as a solvent and preservative in pharmaceutical preparations as well as serving as the primary ingredient in ALCOHOLIC BEVERAGES.Models, Chemical: Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.Butanols: Isomeric forms and derivatives of butanol (C4H9OH).Spectrophotometry, Ultraviolet: Determination of the spectra of ultraviolet absorption by specific molecules in gases or liquids, for example Cl2, SO2, NO2, CS2, ozone, mercury vapor, and various unsaturated compounds. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Hydrogen Bonding: A low-energy attractive force between hydrogen and another element. It plays a major role in determining the properties of water, proteins, and other compounds.Trichloroethanes: Chlorinated ethanes which are used extensively as industrial solvents. They have been utilized in numerous home-use products including spot remover preparations and inhalant decongestant sprays. These compounds cause central nervous system and cardiovascular depression and are hepatotoxic. Include 1,1,1- and 1,1,2-isomers.Solubility: The ability of a substance to be dissolved, i.e. to form a solution with another substance. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Ethylene Glycols: An ethylene compound with two hydroxy groups (-OH) located on adjacent carbons. They are viscous and colorless liquids. Some are used as anesthetics or hypnotics. However, the class is best known for their use as a coolant or antifreeze.Gram-Negative Aerobic Bacteria: A large group of aerobic bacteria which show up as pink (negative) when treated by the gram-staining method. This is because the cell walls of gram-negative bacteria are low in peptidoglycan and thus have low affinity for violet stain and high affinity for the pink dye safranine.Xylenes: A family of isomeric, colorless aromatic hydrocarbon liquids, that contain the general formula C6H4(CH3)2. They are produced by the destructive distillation of coal or by the catalytic reforming of petroleum naphthenic fractions. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)Tetrachloroethylene: A chlorinated hydrocarbon used as an industrial solvent and cooling liquid in electrical transformers. It is a potential carcinogen.Chromatography, Gas: Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix.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).Volatilization: A phase transition from liquid state to gas state, which is affected by Raoult's law. It can be accomplished by fractional distillation.Molecular Sequence Data: Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.Ionic Liquids: Salts that melt below 100 C. Their low VOLATILIZATION can be an advantage over volatile organic solvents.MethylaminesAldehyde-Ketone Transferases: Enzymes that catalyze the transfer of aldehyde or ketone residues. EC 2.2.Chromatography, Thin Layer: Chromatography on thin layers of adsorbents rather than in columns. The adsorbent can be alumina, silica gel, silicates, charcoals, or cellulose. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Spectrometry, Mass, Electrospray Ionization: A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry.Catalysis: The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction.Crystallography, X-Ray: The study of crystal structure using X-RAY DIFFRACTION techniques. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Molecular Conformation: The characteristic three-dimensional shape of a molecule.Gas Chromatography-Mass Spectrometry: A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds.Acetates: Derivatives of ACETIC ACID. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain the carboxymethane structure.Occupational Exposure: The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.Plants, Medicinal: Plants whose roots, leaves, seeds, bark, or other constituent parts possess therapeutic, tonic, purgative, curative or other pharmacologic attributes, when administered to man or animals.Crystallization: The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)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.Methylobacterium: A genus of gram-negative, aerobic, facultatively methylotrophic rods occurring singly or occasionally in rosettes. Members of this genus are usually motile and are isolated from soil, dust, fresh water, lake sediments, leaf surfaces, rice, air, and hospital environments. (From Bergey's Manual of Determinative Bacteriology, 9th ed)Chemical Fractionation: Separation of a mixture in successive stages, each stage removing from the mixture some proportion of one of the substances, for example by differential solubility in water-solvent mixtures. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Drug Stability: The chemical and physical integrity of a pharmaceutical product.Mass Spectrometry: An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.Ethylene Glycol: A colorless, odorless, viscous dihydroxy alcohol. It has a sweet taste, but is poisonous if ingested. Ethylene glycol is the most important glycol commercially available and is manufactured on a large scale in the United States. It is used as an antifreeze and coolant, in hydraulic fluids, and in the manufacture of low-freezing dynamites and resins.Amino Acid Sequence: The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.Chemistry, Physical: The study of CHEMICAL PHENOMENA and processes in terms of the underlying PHYSICAL PHENOMENA and processes.Plant Leaves: Expanded structures, usually green, of vascular plants, characteristically consisting of a bladelike expansion attached to a stem, and functioning as the principal organ of photosynthesis and transpiration. (American Heritage Dictionary, 2d ed)1-Butanol: A four carbon linear hydrocarbon that has a hydroxy group at position 1.Countercurrent Distribution: A method of separation of two or more substances by repeated distribution between two immiscible liquid phases that move past each other in opposite directions. It is a form of liquid-liquid chromatography. (Stedman, 25th ed)Protein Structure, Secondary: The level of protein structure in which regular hydrogen-bond interactions within contiguous stretches of polypeptide chain give rise to alpha helices, beta strands (which align to form beta sheets) or other types of coils. This is the first folding level of protein conformation.Trichloroethylene: A highly volatile inhalation anesthetic used mainly in short surgical procedures where light anesthesia with good analgesia is required. It is also used as an industrial solvent. Prolonged exposure to high concentrations of the vapor can lead to cardiotoxicity and neurological impairment.Deuterium: Deuterium. The stable isotope of hydrogen. It has one neutron and one proton in the nucleus.Chromatography, Liquid: Chromatographic techniques in which the mobile phase is a liquid.Spectrometry, Fluorescence: Measurement of the intensity and quality of fluorescence.Phenols: Benzene derivatives that include one or more hydroxyl groups attached to the ring structure.Methylophilus methylotrophus: A species of METHYLOPHILUS which is motile by single flagella. In addition to growth on methanol as a sole carbon source, growth also occurs on glucose. (From Bergey's Manual of Determinative Bacteriology, 9th ed)Liquid-Liquid Extraction: The removal of a soluble component from a liquid mixture by contact with a second liquid, immiscible with the carrier liquid, in which the component is preferentially soluble. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Limit of Detection: Concentration or quantity that is derived from the smallest measure that can be detected with reasonable certainty for a given analytical procedure.Physicochemical Phenomena: The physical phenomena describing the structure and properties of atoms and molecules, and their reaction and interaction processes.Circular Dichroism: A change from planar to elliptic polarization when an initially plane-polarized light wave traverses an optically active medium. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)HydrocarbonsSolid Phase Extraction: An extraction method that separates analytes using a solid phase and a liquid phase. It is used for preparative sample cleanup before analysis by CHROMATOGRAPHY and other analytical methods.Indicators and Reagents: Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant & Hackh's Chemical Dictionary, 5th ed, p301, p499)Octanes: Eight-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives.Computer Simulation: Computer-based representation of physical systems and phenomena such as chemical processes.Spectrophotometry, Infrared: Spectrophotometry in the infrared region, usually for the purpose of chemical analysis through measurement of absorption spectra associated with rotational and vibrational energy levels of molecules. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)X-Ray Diffraction: The scattering of x-rays by matter, especially crystals, with accompanying variation in intensity due to interference effects. Analysis of the crystal structure of materials is performed by passing x-rays through them and registering the diffraction image of the rays (CRYSTALLOGRAPHY, X-RAY). (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Chemistry: A basic science concerned with the composition, structure, and properties of matter; and the reactions that occur between substances and the associated energy exchange.Binding Sites: The parts of a macromolecule that directly participate in its specific combination with another molecule.Spectrophotometry: The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.Spectrum Analysis: The measurement of the amplitude of the components of a complex waveform throughout the frequency range of the waveform. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Methylophilaceae: A family of gram-negative bacteria in the order Methylophilales.Deuterium Oxide: The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes.Hydrophobic and Hydrophilic Interactions: The thermodynamic interaction between a substance and WATER.Chemical Phenomena: The composition, conformation, and properties of atoms and molecules, and their reaction and interaction processes.
Silicon dioxide
Polysorbate 80
Cholecalciferol
Bio-energy with carbon capture and storage
Paraldehyde
Alcohol use and sleep
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Polyproline helix
Methanol - Solvent by Type | Sigma-Aldrich
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Chromatography Solvents | HPLC | LC-MS | Spectrum Chemical
Solvents, Solvent, Acetone, Butyl Acetate, Ethanol, Ethyl Lactate, Isopropyl Alcohol, MEK, Methanol, NMP, PGMEA/ EBR
Ethyl acetateVaporHPLCAlcoholConcentrationAcetoneEthylChloroformSynthesisAqueousVolume of solventArgus Methanol AnalyticsPurityDichloromethaneChromatographyDielectric constantChemicalToxicityAlcoholExtractMixtureExposureGlobal methanolExcess methanolCatalystsTemperatureLiquidGradeCOMPOUNDSAdhesivesMeOHCyclohexaneNail polish removersFormic acidVapor pressureAnalyticalHeptaneIngredientHydrocarbon-basedCapacitiesVolatilityExtraction
Ethyl acetate1
- Alkane/ethyl acetate/methanol/water solvents are most commonly used for these compounds. (news-medical.net)
Vapor1
- We developed an inexpensive methanol sensor that uses a gas-permeable silicone rubber tube immersed in the culture medium and an organic solvent vapor detector. (ubc.ca)
HPLC3
- In some cases, sequential CCC with different solvents or another HPLC step may be used for further separation. (news-medical.net)
- CCC also helps in saving substantial costs associated with the large volumes of organic solvents used with HPLC. (news-medical.net)
- The sensor calibration was stable for the duration of the culture and the output signal accurately reflected the methanol concentration determined off-line by HPLC. (ubc.ca)
Alcohol1
Concentration3
- Accurate regulation of the methanol concentration in P. pastoris cultures is necessary to maintain induction, while preventing accumulation of methanol to cytotoxic levels. (ubc.ca)
- The sensor was used to monitor methanol concentration continuously throughout a fed-batch shake-flask culture of a P. pastoris clone producing the N-lobe of human transferrin. (ubc.ca)
- A closed-loop control system utilizing this sensor was developed and used to maintain a 0.3% (v/v) methanol concentration in the culture. (ubc.ca)
Acetone4
- The Demonstration shows the VLE (vapor-liquid equilibrium) behavior of the ternary system composed of acetone, methanol, and the solvent. (wolfram.com)
- In particular, solvent-free acetone mole fraction in the vapor phase is plotted versus its counterpart in the liquid phase. (wolfram.com)
- The practical implication of this observation is that the heavier methanol will exit the extractive distillation column at the top, while the light acetone will exit as a bottom product mixed with the extrainer. (wolfram.com)
- We supply acetone, chloroform, methanol, isopropyl alcohol, and a wide variety of other solvents to meet your needs. (coleparmer.com)
Ethyl3
- Ethyl lactate is also likely to offer an attractive opportunity for growth in the near future owing to their rising use as a substitute for petroleum based solvents. (express-press-release.net)
- Other common nonpolar solvents include acetic acid , chloroform , diethyl ether , ethyl acetate , methylene chloride , and pyridine . (fishersci.com)
- The n-hexane, chloroform, ethyl acetate, and n-butanol fractions of the hydro-methanol (2:3) extract of seed of Cuminum cyminum were administrated orally to male rat. (arjournals.org)
Chloroform4
- Chloroform and benzene, commonly found in gasoline, are carcinogenic in addition to other solvents. (fishersci.com)
- Substance dissolved in a mixture of chloroform-methanol (1:1). (who.int)
- Some solvents including chloroform and benzene (an ingredient of gasoline ) are carcinogenic . (wikipedia.org)
- The findings indicated that among the said four different fractions, the chloroform fraction of the hydro-methanol extract of the seed of Cuminum cyminum had most effective antitesticular activity. (arjournals.org)
Synthesis9
- Methanol synthesis using Cu/ZnO/Al2O3 catalysts is a well-established industrial process. (cf.ac.uk)
- Recently, the synthesis of a CuZn hydroxycarbonate precursor, analogous to the rare mineral georgeite, was reported to produce a high activity methanol synthesis catalyst. (cf.ac.uk)
- The catalyst derived from the CuZn georgeite precursor phase doped with Al3+ showed a high level of methanol synthesis productivity, which was comparable to that of the binary CuZn georgeite derived catalyst. (cf.ac.uk)
- Solvent Effect on Synthesis of Perovskite-Type La1-xCaxCoO3 and Their Electrochemical Properties for Oxygen Reactions, Materials Research Bulletin, 35 (12): 1955-1966 (2000). (ac.ir)
- In the chemical industry methane is currently indirectly converted to methanol via the production of synthesis gas (CO + H2) at high temperatures and pressures, which is an expensive and energy intensive process. (phys.org)
- Solvent-free synthesis of ZIFs: a route towards the elusive Fe(II) analogue of ZIF-8. (bioportfolio.com)
- An efficient solvent-free synthesis of 2-(alkylamino)-2-oxo-1-arylethyl-6,12-dioxo-6,12-dihydroindolo1,2-bisoquinoline-11-carboxylate derivatives via four-component reaction. (bioportfolio.com)
- One-pot solvent-free synthesis of 2,3-dihydro-2-substituted-1H-naphtho1,2-e1,3oxazine derivatives using [email protected]/TiCl as a bio-based and recyclable magnetic nano-catalyst. (bioportfolio.com)
- Tetra-n-butylammonium hydroxide, 40% w/w in methanol is used as a phase-transfer catalyst in organic synthesis especially for alkylation and condensation reactions. (alfa.com)
Aqueous5
- Efficacy and toxicity of aqueous and organic solvents extracts of Maerua edulis against ticks and mice, respectively, were determined. (hindawi.com)
- Use low or no solvent adhesives if possible, such as hot melt, heat seal, aqueous-based, or polyvinyl alcohol (PVA) adhesives. (wa.gov)
- A collaborative team led by Graham J. Hutchings at the Cardiff Catalysis Institute, and Christopher J. Kiely at Lehigh University, have used colloidal gold-palladium (Au-Pd) nanoparticles to directly oxidize methane to methanol with high selectivity in aqueous solution at low temperatures. (phys.org)
- 2. The process according to claim 1 wherein the solvent used to dissolve the active substance is an organic aqueous solvent system wherein the molar proportion of water to be used is from 0.1 to 10 times the molar proportion of the alcohol components. (freepatentsonline.com)
- TAC was highest in aqueous solvent. (unboundmedicine.com)
Volume of solvent4
- The products of solvolysis can be isolated from the relatively large volume of solvent, without isotope fractionation, using gas chromatography and special collectors cooled with liquid nitrogen. (dtic.mil)
- The concentration of a solution is the amount of compound that is dissolved in a certain volume of solvent. (wikipedia.org)
- The solubility is the maximal amount of compound that is soluble in a certain volume of solvent at a specified temperature . (wikipedia.org)
- The quantity of solute that can dissolve in a specific volume of solvent varies with temperature. (wikipedia.org)
Argus Methanol Analytics1
- The Argus Methanol Analytics service, part of the wider Argus Analytics line, puts you firmly in control of your petrochemicals information flow. (argusmedia.com)
Purity4
- Solvents are used extensively as a medium for chemical reactions and analytical separations and are available in various purity grades and packaging options. (fishersci.com)
- Find product line features, applications, and ordering information for the full line of High-Purity Chromasolv Solvents available in North America. (fishersci.com)
- Spectrum carries a large variety of gas chromatography solvents which are high purity solvents specifically controlled for GLC techniques. (spectrumchemical.com)
- In the navigation area on the top of this page all solvents supplied by us are listed, behind thiese links you will find further technical information on the fields of application, as well as information on the available sales units and purity grades. (microchemicals.com)
Dichloromethane2
- Sub-chronic Effect of Methanol-Dichloromethane Stem Bark Extract of Stemonocoleus micranthus Harms. (omicsonline.org)
- This study investigated the effect of sub-chronic administration of methanol-dichloromethane stem bark extract of S. micranthus (SME) on lipid profile and histology of liver and kidney of rats. (omicsonline.org)
Chromatography2
- The objective of this paper is to study the effect of using methanol in the flush-solvent bottle of the autosampler of Ion Chromatograph instrument, and the effect of using two types of column cartridges which are used in Ion Chromatography (OnGuard-RP and OnGuard-P) on the determination of different anions (fluoride, chloride, bromide, nitrate, phosphate, and sulfate) by using ion chromatography. (scirp.org)
- Spectrum specializes in providing the top gas chromatography solvents but if you do not see the product, grade or form of the ingredient you require, just contact our chemical specialist at 800-772-8786. (spectrumchemical.com)
Dielectric constant5
- In this study, a good linear relationship was obtained between protonation constants (on the logarithmic scale) and dielectric constant (ɛ) of the water-methanol mixed solvents. (jmcs.org.mx)
- Generally, the dielectric constant of the solvent provides a rough measure of a solvent's polarity. (wikipedia.org)
- The strong polarity of water is indicated by its high dielectric constant of 88 (at 0 °C). Solvents with a dielectric constant of less than 15 are generally considered to be nonpolar. (wikipedia.org)
- Heuristically, the dielectric constant of a solvent can be thought of as its ability to reduce the solute's effective internal charge. (wikipedia.org)
- Generally, the dielectric constant of a solvent is an acceptable predictor of the solvent's ability to dissolve common ionic compounds, such as salts. (wikipedia.org)
Chemical12
- Learn about Fisher Chemical Elite 8 Solvents, the most commonly used stockroom, analytical laboratory, and production solvents. (fishersci.com)
- Effects of the Solvent and Calcination Temperature on LaFeO3 Catalysts for Methanol Oxidation', Iranian Journal of Chemistry and Chemical Engineering (IJCCE) , 35(3), pp. 75-81. (ac.ir)
- Chemical constituents of twenty-five compounds were identified in the methanol extract. (hindawi.com)
- Methanol appeared most often in hydraulic fracturing products (in terms of the number of compounds containing the chemical). (businessinsider.com)
- Our work has shown that if a stable supply of methyl radicals can be established-for example, by incorporating a very small amount of hydrogen peroxide into the reaction mixture-then the selective oxidation of methane to methanol using molecular oxygen is entirely feasible," said Kiely, the Harold B. Chambers Senior Professor Materials Science and Chemical Engineering at Lehigh. (phys.org)
- Safety procedures for handling, storage, and disposal of chemical solvent and their wastes should be strictly followed. (fda.gov)
- You can buy hundreds of reliable chemical solvents from Cole-Parmer. (coleparmer.com)
- It's found in fuels, pesticides, and chemical solvents. (fastcompany.com)
- Solvents find various applications in chemical, pharmaceutical, oil, and gas industries, including in chemical syntheses and purification processes. (wikipedia.org)
- This arrangement is mediated by the respective chemical properties of the solvent and solute, such as hydrogen bonding, dipole moment and polarizability. (wikipedia.org)
- Because solvents are used by chemists to carry out chemical reactions or observe chemical and biological phenomena, more specific measures of polarity are required. (wikipedia.org)
- The Grunwald-Winstein mY scale measures polarity in terms of solvent influence on buildup of positive charge of a solute during a chemical reaction. (wikipedia.org)
Toxicity3
- Acute Oral Mammalian Toxicity and Effect of Solvents on Efficacy of Maerua edulis (Gilg. (hindawi.com)
- How is methanol toxicity treated? (medscape.com)
- Gupta N, Sonambekar AA, Daksh SK, Tomar L. A rare presentation of methanol toxicity. (medscape.com)
Alcohol11
- Methanol is a liquid solvent commonly known is methyl alcohol. (sydneysolvents.com.au)
- Methanol is also called wood alcohol as it is a by-product of the destructive distillation of wood. (sydneysolvents.com.au)
- Methanol is a toxic alcohol that is used industrially as a solvent, pesticide, and alternative fuel source. (cdc.gov)
- The characteristic pungent (alcohol) odor of methanol does not provide sufficient warning of low levels of exposure. (cdc.gov)
- tert-Butyl alcohol, Methanol mixtures. (cornell.edu)
- Methanol is a natural by-product of wood alcohol, natural gas and coal. (msdsonline.com)
- The latest involves 18,940 1-liter bottles of All Clean Hand Sanitizer, Moisturizer, and Disinfectant, because of the potential presence of methanol, also known as wood alcohol. (fastcompany.com)
- methanol, methyl alcohol , or wood alcohol, CH 3 OH, a colorless, flammable liquid that is miscible with water in all proportions. (encyclopedia.com)
- Methanol is a monohydric alcohol . (encyclopedia.com)
- Methanol is often called wood alcohol because it was once produced chiefly as a byproduct of the destructive distillation of wood. (encyclopedia.com)
- methanol ( methyl alcohol , CH 3 OH ) Colourless, poisonous, flammable liquid, the simplest of the alcohols . (encyclopedia.com)
Extract6
- In the present investigation, methanol extract using insecticidal compounds isolated against mosquito larvae kill assay was carried out. (hindawi.com)
- However, the histopathological examination of the liver and kidney of the rats that received extract and solvent revealed normal portal area with bile ducts and hepatic artery as well as normal glomerulus and renal tubules without observable changes suggesting zero tendency of causing toxic effects. (omicsonline.org)
- Solvents can also be used to extract soluble compounds from a mixture, the most common example is the brewing of coffee or tea with hot water. (wikipedia.org)
- Our previous study showed a significant antifertility effect of hydro-methanol extract of Cuminum cyminum Linn (Umbelliferae) in male albino rat. (arjournals.org)
- The main objective of this work isto search outthe potentfraction of hydro-methanol extract of seed of Cuminum cyminum in adult male albino rat for the development of herbal male contraceptive to reduce the bio-burden of phytomolecules. (arjournals.org)
- AOA of fresh Moringa leaf extract is a function of its phytochemical content and is influenced by both the age of the leaves and the extraction solvent used. (unboundmedicine.com)
Mixture3
- A case study on co-exposure to a mixture of organic solvents in a Tunisian adhesive-producing company. (medscape.com)
- Motor neuron disease and optic neuropathy after acute exposure to a methanol-containing solvent mixture. (medscape.com)
- A solvent-solute mixture consists of a single phase with all solute molecules occurring as solvates (solvent-solute complexes), as opposed to separate continuous phases as in suspensions, emulsions and other types of non-solution mixtures. (wikipedia.org)
Exposure10
- Long-term exposure to some solvents can be hazardous to worker health, however. (fishersci.com)
- Chronic solvent-induced encephalopathy (CSE) is a known condition and occupational exposure to organic solvents is associated with alcoholism, cataracts, and the loss of hearing and color vision. (fishersci.com)
- When handling methanol, including biofuels, it is best to avoid direct exposure as much as possible. (msdsonline.com)
- Exposure is prevented with appropriate use of PPE for those who work with organic solvents. (medscape.com)
- Education may also improve epidemiologic research, which may prove or disprove the relationship between exposure to a solvent and health consequences. (medscape.com)
- Occupational exposure to organic solvents and lymphoid neoplasms in men: results of a French case-control study. (medscape.com)
- Severe neurotoxicity associated with exposure to the solvent 1-bromopropane (n-propyl bromide). (medscape.com)
- Sclar G. Encephalomyeloradiculoneuropathy following exposure to an industrial solvent. (medscape.com)
- Solvent exposure and cognitive function in automotive technicians. (medscape.com)
- Finkelstein Y, Vardi J. Progressive parkinsonism in a young experimental physicist following long-term exposure to methanol. (medscape.com)
Global methanol5
- Analyse company holdings and balances to better position your company in the ever-changing global methanol marketplace. (argusmedia.com)
- The global methanol industry has performed well in recent years and continues to grow at or above GDP-type performance. (argusmedia.com)
- Argus' comprehensive global methanol demand flow chart is your go-to resource to see how the market trended in 2017. (argusmedia.com)
- Dave McCaskill is VP, Global Methanol and Derivatives, based in Houston. (argusmedia.com)
- He manages Argus' global methanol services with an individual emphasis on methanol and downstream derivative activities in the Americas. (argusmedia.com)
Excess methanol2
- This phase contains considerable free fatty acids as well as the glycerol by product and excess methanol from the transesterification process. (process-nmr.com)
- For more information on the safest way to dispose of excess methanol, check with your local environmental office. (msdsonline.com)
Catalysts3
- Here we report the addition of Al3+, the third component found in industrial catalysts, to the zincian georgeite-derived catalyst prepared using a supercritical CO2 anti-solvent precipitation methodology. (cf.ac.uk)
- Levasseur B., Kaliaguine S . , Methanol Oxidation on LaBO 3 (B = Co, Mn, Fe) Perovskite-Type Catalysts Prepared by Reactive Grinding , Applied Catalysis, A: General , 343 (1):29-38 (2008). (ac.ir)
- The effect of microwave radiation on 0.5Fe/ZSM-5 catalysts (0.5 wt% Fe) active in the conversion of methanol to hydrocarbons was studied. (springer.com)
Temperature4
- For example, both the room temperature and humidity can impact the volatility of the solvent and the sample diluent. (waters.com)
- 4 , 5 Lipases utilize a wide spectrum of substrates, and some of them are stable at extreme temperature, and pH conditions and in organic solvents. (scielo.br)
- Since liquids boil when their vapor pressure is equal to atmospheric pressure, diluted solvents need a higher temperature to reach that point. (reference.com)
- The reaction proceeds in moderate yield at room temperature in methanol with formaldehyde or a variety of aryl aldehydes. (wikipedia.org)
Liquid9
- Solvents and emulsifiers are required in most liquid insecticide preparations. (merckvetmanual.com)
- Indoor Air: Methanol can be released into indoor air as a liquid spray (aerosol). (cdc.gov)
- Agricultural: If methanol is released into the air as a liquid spray (aerosol), it has the potential to contaminate agricultural products. (cdc.gov)
- These unique characteristics result in high-mass transfer, and allow for greater penetration into porous solids, while retaining solvent strengths similar to that of a liquid. (waters.com)
- A solvent is a substance, that becomes a solution by dissolving a solid , liquid , or gaseous solute . (wikipedia.org)
- A solvent is usually a liquid, but can also be a solid or gas. (wikipedia.org)
- Liquid methanol is widely used as a feedstock for other chemicals and also has considerable potential as an alternative fuel source. (phys.org)
- No solvents or other liquid-phase was used. (springer.com)
- A solvent (from the Latin solvō, "loosen, untie, solve") is a substance that dissolves a solute (a chemically distinct liquid, solid or gas), resulting in a solution. (wikipedia.org)
Grade1
- Please visit the Applications Portal of the Solvent Center to ensure that you select the correct solvent grade for your application. (sigmaaldrich.com)
COMPOUNDS2
- Acid dissociation constants, pK a , have also been determined for these compounds in the same solvents by potentiometric titration. (elsevier.com)
- Solvents should therefore not react chemically with the dissolved compounds - they have to be inert . (wikipedia.org)
Adhesives2
- Green and bio-based solvents are used in printing inks, paints and coatings, commercial and domestic cleaning, adhesives and sealants, cosmetics, and pharmaceutical. (express-press-release.net)
- However, increasing demand for green and bio-based solvents in the cosmetics, adhesives and sealants, and pharmaceutical segments will open up new frontiers of growth in the market and thus help overcome the current obstacles. (express-press-release.net)
MeOH1
- The MeOH-TPSR profiles showed that methanol was converted to DME and subsequently converted to aliphatic and aromatic hydrocarbons. (springer.com)
Cyclohexane1
- The data of g and Ψ (the interpenetration function) as functions of the cube of the radius expansion factor α S , combined with previous data in cyclohexane, a good solvent, show that the two-parameter theory breaks down unless α S 3 is larger than about 2 for g and about 5 for Ψ . (nature.com)
Nail polish removers1
- Nonpolar organic solvents are used as spot removers, paint thinners, nail polish removers, glue solvents, and in perfumes and detergents. (fishersci.com)
Formic acid2
- Both patients show, metabolic acidosis with high anion gag (formic acid) and high osmolal gap (methanol). (revistanefrologia.com)
- Hemodialysis can easily remove methanol and formic acid. (medscape.com)
Vapor pressure1
- Suspended particles "dilute" the solvent, causing a drop in the solvent's vapor pressure. (reference.com)
Analytical2
- The effect of using methanol in the flush-solvent bottle of the auto-sampler of Ion Chromatograph on the determination of sulfate ions was studied using AS11-HC 2 mm analytical column. (scirp.org)
- The AS3500 autosampler is provided with a flush-solvent bottle containing a solvent to remove air bubbles that are produced in the injection syringe during the introduction of the sample to the analytical column which affects the sample injection volume leading to inaccuracy in measured concentrations. (scirp.org)
Heptane1
- Light scattering measurements have been made on nine polyisobutylene (PIB) fractions in heptane, an intermediate solvent, at 25°C to determine the second virial coefficient A 2 and the third virial coefficient A 3 as functions of weight-average molecular weight M w ranging from 2.7×10 4 to 7.8×10 6 . (nature.com)
Ingredient2
- Methanol is an essential ingredient in biofuels made with fats and oils, as it acts as a catalyst in the production of the biodiesel fuel. (msdsonline.com)
- Methanol is not an acceptable active ingredient for hand sanitizers and must not be used due to its toxic effects," the FDA said. (fastcompany.com)
Hydrocarbon-based1
- The two techniques are compared, focusing on the total processing time, total hydrocarbon-based solvents required, and the total gamma-tocopherols extracted. (waters.com)
Capacities2
- With this, you get a 10-year forecast and a five-year history for methanol capacities, trade, and supply and demand balances, plus details on demand growth for leading derivatives. (argusmedia.com)
- Take advantage of methanol data and forecasts, including capacities, trade and supply/demand balances, plus long-term analysis and regular access to expert analysts. (argusmedia.com)
Volatility2
- Ultra Pure Solvent Blends - Formulated chemistries which exhibit excellent solvency, with low volatility and odor. (fujifilmusa.com)
- Recycling, and to a greater extent tolling, decouples used solvent generators from the high cost and volatility of virgin solvent prices. (eponline.com)
Extraction2
- Antioxidant activity (AOA) and phytochemical content of Moringa oleifera Lam leaves were determined as a function of their age and extraction solvent. (unboundmedicine.com)
- TY - JOUR T1 - Effects of age and extraction solvent on phytochemical content and antioxidant activity of fresh Moringa oleifera L. leaves. (unboundmedicine.com)
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