CASR |
: | 860-22-0 |
Molecular Formula |
: | C16H8N2Na2O8S2 |
Molecular Weight |
: | 466.35 |
| Specifications | |
|---|---|
| Description: | Dark blue powder with coppery luster. |
| Solubility: | 1% solution in water should be clear. |
| Absorption, L max: | 608-612nm |
| Absorptivity(A1%,1cm,L max.): | min.400 |
| Absorption ratio: | 0.98-1.07 |
| Dye content (Titanometry:on dried sub.): | min.85% |
| Sulphated ash: | 30-35% (on dried basis) |
| Insoluble matter: | 0.2%max |
| Loss on drying,120°C: | 10%max |
