发布日期:2020-09-22 17:25 浏览次数:
Specification:
Test Items |
The Standard |
Test Results |
Individual conclusion |
Appearance |
White crystalline |
White crystalline |
Qualified |
pH |
Qualified |
Qualified |
Qualified |
Identification |
Qualified |
Qualified |
Qualified |
Ammonium salt |
≤0.0025% |
0.00% |
Qualified |
Arsenic salt |
≤0.0002% |
<0.0001% |
Qualified |
Heavy metal |
≤0.001% |
0.00% |
Qualified |
Content |
≥99.0% |
99.80% |
Qualified |
Loss on drying |
≤15% |
13.10% |
Qualified |
Melting point |
226~230 |
227.8~229.5 |
Qualified |
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