| 单词 | methanol | |||
| 释义 | methanolmeth·a·nolM0253100 (mĕth′ə-nôl′, -nōl′, -nŏl′)methanol(ˈmɛθəˌnɒl)meth′yl al′coholn. meth·a·nol(mĕth′ə-nôl′)
methanolmethanol,methyl alcohol,orwood alcohol,CH3OH, a colorless, flammable liquid that is miscible with water in all proportions. Methanol is a monohydric alcoholalcohol,any of a class of organic compounds with the general formula R-OH, where R represents an alkyl group made up of carbon and hydrogen in various proportions and -OH represents one or more hydroxyl groups. ..... Click the link for more information. . It melts at −97.8°C; and boils at 67°C;. It reacts with certain acids to form methyl esters. Methanol is a fatal poison. Small internal doses, continued inhalation of the vapor, or prolonged exposure of the skin to the liquid may cause blindness. As a result, commercial use of methanol has sometimes been prohibited. Methanol is used as a solvent for varnishes and lacquers, as an antifreeze, and as a gasoline extender in the production of gasoholgasohol, a gasoline extender made from a mixture of gasoline (90%) and ethanol (10%; often obtained by fermenting agricultural crops or crop wastes) or gasoline (97%) and methanol, or wood alcohol (3%). ..... Click the link for more information. . Large amounts of it are used in the synthesis of formaldehydeformaldehyde , HCHO, the simplest aldehyde. It melts at −92°C;, boils at −21°C;, and is soluble in water, alcohol, and ether; at STP, it is a flammable, poisonous, colorless gas with a suffocating odor. ..... Click the link for more information. . Because of its poisonous properties, methanol is also used as a denaturant for ethanol. Methanol is often called wood alcohol because it was once produced chiefly as a byproduct of the destructive distillation of wood. It is now produced synthetically by the direct combination of hydrogen and carbon monoxide gases, heated under pressure in the presence of a catalyst. methanol[′meth·ə‚nȯl]methanolmethanolmethanol[meth´ah-nol]meth·yl al·co·holmethanolA polar alcohol used as an industrial solvent; it is miscible with water, ethanol, ether, and petroleum derivatives (e.g., gasoline), and can be found in canned fuel and in antifreeze, from which it may be abused as an inebriant by indigent alcoholics. Methanol is metabolised to formaldehyde and formate, causing severe metabolic acidosis, optic nerve damage and blindness.Toxic range 60–250 ml; as little as 15 ml can be fatal. Management Overload patient with ethanol, which competes with methanol for sites on alcohol dehydrogenase, reducing methanol metabolites and toxicity. methanolToxicology A polar alcohol used as an industrial solvent miscible with water, ethanol, ether, petroleum derivatives–eg, gasoline, in canned fuel and in antifreeze, where it may be abused as an inebriant by indigent alcoholics; methanol is metabolized to formaldehyde and formate, causing significant metabolic acidosis and optic nerve damage and blindness Toxic range 60-250 ml; as little as 15 ml has been fatal Management Overload Pt with ethanol–which competes with methanol for sites on alcohol dehydrogenase, reducing methanol metabolites and toxicitymeth·yl al·co·hol(meth'il al'kŏ-hol)Synonym(s): methanol. meth·yl al·co·hol(meth'il al'kŏ-hol)Synonym(s): methanol. methanol
Synonyms for methanol
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methanol - a light volatile flammable poisonous liquid alcohol; used as an antifreeze and solvent and fuel and as a denaturant for ethyl alcohol