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Haematein and its Derivatives
Author(s) -
Feather P.,
Inman E.,
Peters A. T.
Publication year - 1962
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1962.tb02494.x
Subject(s) - sodium salt , chemistry , salt (chemistry) , derivative (finance) , sodium , hydrochloride , nuclear chemistry , organic chemistry , inorganic chemistry , financial economics , economics
A crystalline hydrochloride of Haematein has been prepared, and this is the first record of a salt from which Haematein is readily recoverable. A mechanism of the action of strong acids on Haematein is proposed, and salts of isohaematein are examined. Haematein is converted into solid products, very soluble in cold water, by interaction with sodium bisulphate or sodium thioglycollate; the structures of such addition products are discussed. The thioglycollate derivative dyed mordanted wool a fast black of excellent colour value.