DSD Acid
Product name: DSD Acid
Chemical name: 4,4′-Diamino-2,2′-stilbenedisulfonic acid; DASDA
CAS: 81-11-8
Other names: DSD Acid; 4,4′-Diaminostilbene-2,2′-disulfonic acid.
Molecular Weight: 370.4
Molecular Formula: C14H14N2O6S2
Use: It is mainly used as intermediate of dyes.
Package: 25kg plastic woven bag
Origin: Made In China
Remarks: We have been the main producer and exporter of DSD Acid( aka:DASDA) for years in China.
Specifications of DSD Acid
| Items | Standards | Results |
| Appearance | white powder | white powder |
| Content | 95% | 96.2% |
| Moisture | 0.5% | 0.35% |
| Ash | 0.5% | 0.38% |
| pH | 5-8 | 6 |
Introductions of DSD Acid
DSD acid is a kind of chemical substance. Its appearance is light brown yellow powder. The color deepens under the light and becomes brown. For the production of fluorescent brightening agent, direct frozen yellow G and direct yellow R.