| ITEM | SPECIFICATION |
| ASSAY | 99.50%-101% |
| APPEARANCE | WHITE, CRYSTALLINE POWDER |
| M.P. | 158.0℃-161.0℃ |
| IDENTIFICATION | Meet the requirements |
| CHLORIDES | 100PPM MAX |
| HEAVY METALS | ≤20PPM |
| LOSS ON DRYING | ≤0.5% |
| RESIDUE ON IGNITION | ≤0.05% |
| SULFATE | ≤0.02% |
| SULPHATED ASH | ≤0.1% |
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