Dyes

6-amino-4-hydroxy-2-naphthalenesulphonic acid

Chemical Name 6-amino-4-hydroxy-2-naphthalenesulphonic acid
CAS No. 90-51-7
Structure 6-amino-4-hydroxy-2-naphthalenesulphonic acid
Specification

Molecular Formula : C10H9NO4S

Molecular Weight : 239.25 grams/mole

Purity :    Minimum 90% by Coupleing Value

Broenner’s Acid Content : Maximum 1.00%

Dioxy G Acid Content :  Maximum 0.30%

Amido G Acid Content :  Maximum 0.30%

Insoluble matters :  Maximum 0.20%

Nature of material :  Free Sulphonic Acid

Solubility :   Soluble in dilute alkaline solutions

Physical Appearance :  Light gray dry powder

Basis of Sale :   On 100% Real Basis

Packing:   25Kgs HDPE bags with double PE liners inside

 

Top