| Chemical Name: |
4,4'-diaminodistyryl-2,2'-bisulfoacid |
| Name of Commodity: |
DSD acid |
| M.F. : |
C14H14N2O6S2 |
| M.W. : |
370.4 |
| Physical and Chemical Properties: |
Pale yellow powder; soluble in ethanol and ether; insoluble in water; easily soluble in alkali solution. It changes red and has characters of aromatic acid and amine on oxidation. |
| Application: |
To manufacture fluorescent whitener, Direct Yellow G, Direct Yellow R and pesticide. |
| Indications: |
Item |
Property ( Index ) |
Appearance : |
Pale yellow |
Total Amido Value : |
≥ 95 |
Benzyl Content : |
≤ 0.25 |
Alkali Insolubility : |
≤ 0.1 |
Chroma : |
≤ 9 ( Ordinary Grade ) ; ≤ 6 ( Delicate Grade ) |
|
| Packing: |
Knitting bags lined with plastic bag; or upon customers' demands. |
