Process for the production of concentrated solutions of cationic

Details Process for the production of concentrated solutions of cationic Process for the production of concentrated solutions of cationic

1974-02-06

1976-05-11

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260156, 260205, 8 41R, 8 79, 8 92, C09B 4300

Patent

active

039562719

ABSTRACT:
Concentrated solutions of cationic azo dyes are prepared directly from sparingly soluble salts of the dye in a one-step reaction by reacting the sparingly soluble dye with a non-chromophoric carboxylate salt, the cation of which forms an insoluble or sparingly soluble salt with the anion of the starting cationic azo dye in the solvent system employed.

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Sisler et al., General Chemistry, The Macmillian Company; New York, 1949, pp. 353-356.

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