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- noun Plural form of
Sorry, no etymologies found.
By mixing alpha-and beta-naphthols together a variety of grenat and claret reds and browns can be obtained.
Some of the effects which can be obtained from the two naphthols and various bases are given in the following table: --
In addition to phenolic mono - and disulphonic acids (and higher sulphonation compounds), the homologues, cresols, xylenols, and naphthols enter into reaction.
Synthetic Tannins Georg Grasser