| Availability: | |
|---|---|
| Item | Standard | Result |
Appearance | White or off-white crystals | Complies |
| Solubility | Free soluble,clear solution with no particulate matter | Complies |
| Purit % | 98.0-103.0% | 99.59% |
Related substances % | ≤ 2 % | 0.041% |
3,5-dimethyl phenol % | ≤0.3 % | 0.12 % |
Tetrachloroethylene % | ≤0.4 % | 0.04 % |
Fe ppm | ≤ 100 ppm | 20ppm |
Cu ppm | ≤ 100 ppm | 19 ppm |
Moisture % | ≤ 0.2 % | 0.06 % |
Residue on ignition | ≤ 0.10 % | 0.07 % |
Color value at 465nm | ≤ 0.1 | 0.007 |
Melting Point ℃ | 114-116 | 114.8-115.9 |
| Remark | Qualified | |