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H Acid 90-20-0

H Acid 90-20-0
company Hebei Chemintermediate Co., Ltd.
Categories Acid Dyes
Update2011-07-16
Original RegionChina
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H Acid 90-20-0

Properties:
Physical and Chemical Properties:
(1)the solubility in water is 0.17% (20C);
(2)the solubility in water is 2.40% (60C);
(3)insoluble in alcohol and aether;
(4)soluble in solutions of alkali, sodium carbonate and ammonia;
(5)the dilute solution of H-acid appears blue red fluorescence;
(6)H-acid can couple in both acid and alkali condition;
(7)A. The alkali solution of H-acid fast becomes dark in air;
B. To produce yellow crystalline diazo compound when reacting with nitrous acid;
C. Diazo compounds are soluble in soda and alkali solution;
D. Appears light violet when dissolving in soda solution,
E. Appears dark green when dissolving in alkali solution.
Main Uses: Used to produce all kinds of azo dyes, used to dye wools, textiles, papers...

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