DSD Acid
【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.
