"Hydroxyl" Quotes from Famous Books
... placed at the service of dyers a great variety of mordant dyes, which may be classified somewhat roughly into groups, according to their chemical composition. The first group is called phenolic colours. These contain the group, or radical OH, hydroxyl, once or oftener. It is to the presence of this group that they owe their acid character and the property of combination with metallic oxides. To this group of dye-stuffs belong such dyes as Alizarine, ... — The Dyeing of Woollen Fabrics • Franklin Beech
... of that element has been secured. Thus a consideration of the fact that hydrogen is monovalent, while oxygen is divalent, makes it plain that we must expect to find no more than three compounds of these two elements—namely, H—O—(written HO by the chemist, and called hydroxyl); H—O—H (H2O, or water), and H—O—O—H (H2O2, or hydrogen peroxide). It will be observed that in the first of these compounds the atom of oxygen stands, so to speak, with one of its hands free, eagerly reaching out, therefore, for another companion, and hence, ... — A History of Science, Volume 4(of 5) • Henry Smith Williams
... to the non-volatile and oxygenized bases, we take up first the opium alkaloids. Morphine, C{17}H{19}NO{3}, is a tertiary amine, and appears to contain a hydroxyl group like phenols, to which class of bodies it has some analogies, as is shown in its reaction with ferric chloride. Its meythl ester, which can be formed from it, is codeine, one of the accompanying alkaloids of opium. Besides the methyl derivative, however, others are possible, ... — Scientific American Supplement, No. 415, December 15, 1883 • Various |