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A colorless gas, CH3Cl, of a sweet odor, easily condensed to a liquid; -- called also methyl chloride.

liquid, NH(C2H5)2, having a strong fishy odor resembling that of herring or sardines. Cf. Methylamine.

important derivatives are common alcohol, aldehyde, ether, and acetic acid. Called also dimethyl.

, Mixed ether (Chem.), an oxide of two different radicals in the same molecule; as, ethyl methyl ether, C2H5.O.CH3. -- Compound ether (Chem.), an ethereal salt or a salt of some hydrocarbon as the base; an ester. -- Ether engine (Mach.), a condensing engine like a steam engine, but operated by the vapor of ether inst…

le liquid, H2CO, resembling acetic or ethyl aldehyde, and chemically intermediate between methyl alcohol and formic acid.

ettles, pine needles, etc., and produced artifically in many ways, as by the oxidation of methyl alcohol, by the reduction of carbonic acid or the destructive distillation of oxalic acid. It is the first member of the fatty acids in the paraffin series, and is homologous with acetic acid.

Formerly, the radical methyl, CH3.

ch artist, Adrian Gusgnet, and consisting essentially of a basic hydrate of chromium. -- Methyl green (Chem.), an artificial rosaniline dyestuff, obtained as a green substance having a brilliant yellow luster; -- called also light-green. -- Mineral green. See under Mineral. -- Mountain green. See Green earth, under…

A colorless liquid, C7H8O2, with a peculiar odor. It is the methyl ether of pyrocatechin, and is obtained by distilling guaiacum from wood-tar creosote, and in other ways. It has been used in treating pulmonary tuberculosis.

alkaline base, CN3H5, formed by the oxidation of guanin, and also obtained combined with methyl in the decomposition of creatin. Boiled with dilute sulphuric acid, it yields urea and ammonia.

, analogous to tropaolin, and like it used as an indicator in alkalimetry; -- called also methyl orange.

ling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, H2N.NH2, which is a doubled amido group, recently (1887) isolated as a stable, colorless gas, with a peculiar, irritating odor. As a base it forms…

t which a different structure or arrangement of the ultimate parts; as, ethyl alcohol and methyl ether are isomeric (metameric) with each other in this sense. See Metameric.

One of a series of series of complex nitrogenous substances, represented by methyl ketol and related to indol. Methyl ketol, a weak organic base, obtained as a white crystalline substance having the odor of fæces.

iquids, and having peculiar pungent odors. These alkaloids are also called respectively dimethyl pyridine, ethyl pyridine, etc.

one of a series of compounds of certain metallic elements with organic radicals; as, zinc methyl, sodium ethyl, etc. [Written also metallorganic.]

same molecular weight, but possessing a different structure and different properties; as, methyl ether and ethyl alcohol are metameric compounds. See Isomeric.

That variety of xylene, or dimethyl benzene, in which the two methyl groups occupy the meta position with reference to each other. It is a colorless inf

See Methylene.

A binary compound of methyl with some element; as, aluminium methide, Al2(CH3)6.