| Item | Specification | Test Result |
| Appearance | White to light yellow crystal | White crystal |
| Purity(%) | ≥98% (GC) | 99.85 %(GC) |
| Water content(%) | ≤0.50% (KF) | 0.11%(KF) |
| Chromaticity | ≤70 APHA (20ºC) | 20 APHA (20ºC) |
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