Indigo carmine AR 100GM | |||
20792SG100 | 898640319KV | ||
AR | 8986403 | ||
860-22-0 | 89715 | ||
C16H8N2Na2O8S2 | November 2022 | ||
466.35 | October 2027 | ||
Sr.No. | Test | Result | Specification |
---|---|---|---|
1 | Description | Dark blue powder with coppery luster. | Dark blue powder with coppery luster. |
2 | Solubility | Complies | 1% solution in water should be clear. |
3 | Absorption, L max | 610nm | 608-612nm |
4 | Absorptivity(A1%,1cm,L max.) | 452 | min.400 |
5 | Absorption ratio | 0.99 | 0.98-1.07 |
6 | Dye content (Titanometry:on dried sub.) | 87% | min.85% |
7 | Sulphated ash | 32.39% | 30-35% (on dried basis) |
8 | Insoluble matter | 0.07% | 0.2%max |
9 | Loss on drying,120°C | 7.3% | 10%max |
Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |