
| Indigo carmine AR 100GM | |||
| 20792SG100 | 963160304FZ | ||
| AR | 9631603 | ||
| 860-22-0 | 119797 | ||
| C16H8N2Na2O8S2 | June 2026 | ||
| 466.35 | May 2031 | ||
| Sr.No. | Test | Result | Specification | Method Reference |
|---|---|---|---|---|
| 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.) | 416 | min.400 | |
| 5 | Absorption ratio | 0.99 | 0.98-1.07 | |
| 6 | Dye content (Titanometry:on dried sub.) | 86% | min.85% | |
| 7 | Sulphated ash | 32.1% | 30-35% (on dried basis) | |
| 8 | Insoluble matter | 0.1% | 0.2%max | |
| 9 | Loss on drying,120°C | 7.3% | 10%max |
| Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |