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cids and consisting of carbonyl (CO) united with two hydrocarbon radicals. In general the ketones are colorless volatile liquids having a pungent ethereal odor.

A crystalline ketone, CH3COC6H5, which may be obtained by the dry distillation of a mixture of the calcium salts of acetic and benzoic acids. It is used as a hypnotic under the name of hypnone.

A liquid ketone obtained by heating calcium butyrate.

he radical (CO)'\'b7, occuring, always combined, in many compounds, as the aldehydes, the ketones, urea, carbonyl chloride, etc.

A yellow crystalline substance, (C6H5.C2H2)2CO, the ketone of cinnamic acid.

carbon in the molecules and having the constitution either of an aldehyde alcohol or of a ketone alcohol. Most glycoses have hydrogen and oxygen present in the proportion to form water, while the number of carbon atoms is usually equal to the number of atoms of oxygen.

series of organic bases obtained by the reduction of certain isonitroso compounds of the ketones. In general they are unstable oily substances having a pungent aromatic odor.

Pertaining to, or derived from, a ketone; as, a ketonic acid.

The ketone of lauric acid.

The ketone of margaric acid.

are all open-chain compounds containing hydroxyl groups and either an aldehyde group or a ketone group.

The ketone of myristic acid, obtained as a white crystalline substance.

The ketone of oenanthic acid.

n oily liquid, obtained by distillation of calcium oleate, and probably consisting of the ketone of oleic acid.

A suffix indicating that the substance, in the name of which it appears, is a ketone; as, acetone.

series of isonitroso derivatives obtained by the action of hydroxylamine on aldehydes or ketones.

The ketone of palmitic acid.

genous base (C6H5.N2H3) produced artificially as a colorless oil which unites with acids, ketones, etc., to form well-crystallized compounds.

A colorless oily liquid related to the ketones, and obtained by the decomposition of pinacone; hence, by extension, any one of the series of which pinacolin proper is the type. [Written also pinacoline.]

The ketone of propionic acid, obtained as a colorless fragrant liquid.