CAS NO.:90-20-0

Chinese name:H acid;1-Amino-8naphthol-3,6-2-sulfonic acid

English name1-amino-8p-naphthol-3,6-disulfonic acid

Structure or formula

Molecular weight or atomic weight 319.31

Properties

Colorless crystals

Situation dissolved

Slightly soluble in cold water,soluble in soda ash and caustic soda and other alkaline solution.

Uses

H-acid monosodium salt in mainly used for production of acid,direct and reactive dyes,such as acid fuchsin 6B,Acid Scarlet G,Acid Black 10B,Direct Black,Reactive Brilliant Red K-2BP,Reactive Violet K-3r,activity dissolve blue KR and other 90 kinds of these dyes for wool,cotton fabric dyeing.Can also be used to produce drugs.

Other

And the role of ferric chloride solution was brown.Acid salt with microstrip blue-red fluorescence,after alkali into a red purple.H acid products are generally paste or powder

CAS NO.:90-20-0