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 |