Chemical name: 4,4-Diaminostilbene-2,2-disulfonic acid Commodity name: DSD Acid Structural Formula: Molecular Formula: C14H14N2O6S2 Molecular Weight: 370.4 Physical and chemical properties:
1) Light yellow paste or powder, soluble in alcohol and ether insoluble in water, readily soluble in a aqueous solution of alkali.
2) Easy be oxidated to red in air, it has properties of aromatic acid and aromatic amine.
Specifications
Item
Specifications
Appearance
Light yellow paste or powder
Total Amido Value
45.0% min
Total drying Amido Value
95.0% min
Alkali Insolubility(paste)
0.08% max
Alkali Insolubility(powder)
0.10% max
Benzyl Content
0.25% max
Main Usage: Used in manufacture of fluorescent whitening agent. Direct chrysophenine G. Direct yellow R and used asinsect preventive ect. Packing: For powders 25kg net poly-woven bags or as the customers requirements.
For paste 40kg net poly-woven bags or as the customers requirements.
