
| Hydroxynaphthol blue indicator 5GM | |||
| 10787SG005 | 963194304FZ | ||
| Indicator | 9631943 | ||
| 63451-35-4 | 119758 | ||
| C20H11N2Na3O11S3 | June 2026 | ||
| 620.48 | May 2031 | ||
| Sr.No. | Test | Result | Specification | Method Reference |
|---|---|---|---|---|
| 1 | Description | Dark blue powder. | Dark blue powder. | |
| 2 | Solubility | Complies | Soluble in water. | |
| 3 | Absorptivity(1%, 1cm, on dry basis) at 646 nm in pH 12.0 | 426 | Min. 300 | |
| 4 | Loss on drying,105°C | 4.1% | 5.0% max | |
| 5 | Suitability as metal ion indicator (for Ca) | Complies | Passes test |
| Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |