Potassium hydrogen phthalate AR/ACS 500GM | |||
71282SG500 | 920752823AX | ||
AR/ACS | 9207528 | ||
877-24-7 | 99948 | ||
C8H5KO4 | January 2024 | ||
204.22 | December 2028 | ||
Sr.No. | Test | Result | Specification |
---|---|---|---|
1 | Appearance | White solid | White solid |
2 | Aqueous solubility | Complies | 10 g in 100 ml at 25°c |
3 | Assay (on dried basis) | 99.98% | 99.95-100.05% |
4 | pH of a 0.05 M solution | 4.02 | 4.00-4.02 at 25.0+/- 0.2°c |
5 | Insoluble matter | 0.002% | 0.005% Max. |
6 | Chlorine compound (as Cl) | Less than 0.003% | 0.003% Max. |
7 | Sulphur compounds (as S) | Less than 0.002% | 0.002% Max. |
8 | Heavy metals (as Pb) | 1 ppm | 5 ppm Max. |
9 | Iron(Fe) | Not detected | 5 ppm Max. |
10 | Sodium(Na) | 0.0047% | 0.005% Max. |
Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |