nanjingchem

DSD Acid

Product name: DSD Acid
DSD AcidChemical 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.