Crossword-Solution: ALKYL 5 letters, 13 clues 🏆 scrabble score: 12

For this purpose, Fischer [Footnote: _Ber_., 1908, 41, 2860.] chose the carbomethoxy group, and this investigator succeeded, by the action of chlorocarbonic alkyl ester and alkali upon hydroxybenzoic acid in cold aqueous solution, in obtaining substances with the properties required.

The phenolsulphonic acids are strong, rather stable acids; their alcoholic hydroxyl-hydrogen atom may, similarly to that of the phenols, be substituted by a metal or an alkyl radical.

Hence, water must be considered as a combination of one hydrogen atom with one molecule of hydroxyl, expressed by the formula H(OH), and it is this atom of hydrogen _not_ united to oxygen which is eliminated in the generation of oxygen or substituted by metals and alkyl groups.

For instance, an alkyl may be substituted for the hydroxyl hydrogen in an alcohol molecule, when an ether results.

According to the new theory this ether will no longer be considered as two alkyl groups connected by an oxygen atom, but as a compound built up on the type of water by the union of an alkyl group and an alkoxyl group.