Preparing concentrated azo dye solutions using nitrite salt as b

Details Preparing concentrated azo dye solutions using nitrite salt as b Preparing concentrated azo dye solutions using nitrite salt as b

1981-12-30

1984-02-21

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260152, 260158, 260162, 260163, 260205, 260206, 260207, 2602071, 2602075, C09B 4402, C09B 4404, D06P 141

Patent

active

044328990

ABSTRACT:
Concentrated, stable solutions, with a low salt content, of cationic azo dyestuffs of the formula ##STR1## wherein A denotes the radical of an aromatic-carbocyclic or aromatic heterocyclic diazo component,

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