| Items | Limit |
| Characteristics | A white or almost white, crystalline powder |
| Identification | Positive |
| Assay (KCL) | 98.0%Min. |
| Water | 1.0%Max |
| CaSO4% | 0.5%Max |
| MgCl2% | 0.5%Max |
| Water insoluble % | 0.6%Max |
| NaCl% | 0.5%Max |
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