Thymolphthalein AR 25GM | |||
21850SG025 | 926800311DX | ||
AR | 9268003 | ||
125-20-2 | 102504 | ||
C28H30O4 | April 2024 | ||
430.55 | March 2029 | ||
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 ) | 1008 | > 800 |
6 | Loss on drying,110°C | 1.20% | 3.0% max |
Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |