Hydroquinone AR 500GM | |||
20778SG500 | 840290305HT | ||
AR | 8402903 | ||
123-31-9 | 63042 | ||
C6H6O2 | August 2020 | ||
110.11 | July 2025 | ||
Sr.No. | Test | Result | Specification |
---|---|---|---|
1 | Description | Almost colourless crystalline powder. | Colourless or almost colourless crystals/crystalline powder. |
2 | Solubility | Passes | 5% solution in water is clear. |
3 | Assay | 99.61% | min.99.5% |
4 | Melting point | 173°C | 170-175°C |
5 | Resorcinol[C6H4(OH)2] | Nil | NIL |
6 | Residue on ignition | 0.006% | 0.01%max |
7 | Iron(Fe) | Less than 0.001% | 0.001%max |
8 | Lead(Pb) | Less than 0.001% | 0.001%max |
Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |