Chemical name: 4,4-Diaminostilbene-2,2-disulfonic acid Commodity name: DSD Acid
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
Specs: appearance: Light yellow paste or powder Total Amido Value : 45% 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 |