The two ketoneshave the following properties:-- Alpha-ionone.
Rancidity of fats and oils is entirely due to oxidation, in addition to free acid, aldehydes and ketones being formed, and it has been proposed to estimate rancidity by determining the amount of these latter produced.
In general theketones are colorless volatile liquids having a pungent ethereal odor.
Field groups the solvents of pyroxyline into classes thus: Two of the monohydric alcohols; compound ethers of the fatty acids with monohydric alcohols, aldehydes; simple and mixed ketones of the fatty acid series.
Footnote A: Ketones are derived from the fatty acids by the substitution of the hydroxyl of the latter by a monad positive radical.
Mixed ketonesare obtained by distilling together salts of two different fatty acids.
The ketones react with mercaptan to form mercaptols (E.
Only those ketones which contain a methyl group are capable of forming crystalline addition compounds with the alkaline bisulphites (F.
The ketones are of neutral reaction, the lower members of the series being colourless, volatile, pleasant-smelling liquids.
Ketones do not polymerize in the same way as aldehydes, but under the influence of acids and bases yield condensation products; thus acetone gives mesityl oxide, phorone and mesitylene (see below).
The aldehydes and ketones provided material for his earlier work.
It is remarkable that the difference in the heats of formation of ketones and the paraffin containing one carbon atom less is 67.
This is true of the fatty acid series, and the corresponding ketones and alcohols, and also of the succinic acid series.
Nitriles yield ketones (the nitrogen being eliminated as ammonia), the best yields being given by the aromatic nitriles (E.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "ketones" in a variety of sentences. We hope that you will now be able to make sentences using this word.
