Thymolphthalein AR 5GM | |||
21850SG005 | 920940313LW | ||
AR | 9209403 | ||
125-20-2 | 99747 | ||
C28H30O4 | December 2023 | ||
430.55 | November 2028 | ||
Sr.No. | Test | Result | Specification |
---|---|---|---|
1 | Description | White crystalline powder. | White to light yellow crystalline powder. |
2 | Solubility | Complies | Insoluble in water. Soluble in alcohol. |
3 | Transition range(pH 9.3-10.5) | Complies | Colourless to blue. |
4 | Absorption(L max pH 10.5) | 594nm | 592 - 596 nm |
5 | Absorptivity(A 1%,1cm L max.pH 10.5 ) | 1021 | > 800 |
6 | Loss on drying,110°C | 2.1% | 3.0% max |
Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |