Items | Specifications |
Appearance | White crystalline powder |
Identification | Conforming to the requirements |
Melting point | 215.0-220C |
Residue on ignitions | ≤0.1% |
Loss on drying | ≤0.5% |
PH | 4.0-6.0 |
Heavy metals | ≤20ppm |
Related substance(HPLC) | ≤1.0% |
ASSAY (on the dried basis) | ≥99.0% |