Hydroxynaphthol blue indicator 5GM | |||
10787SG005 | 915084319HW | ||
Indicator | 9150843 | ||
63451-35-4 | 97035 | ||
C20H11N2Na3O11S3 | August 2023 | ||
620.48 | July 2028 | ||
Sr.No. | Test | Result | Specification |
---|---|---|---|
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 | 447 | Min. 300 |
4 | Loss on drying,105°C | 2.6% | 5.0% max |
5 | Suitability as metal ion indicator (for Ca) | Complies | Passes test |
Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |