Item | Specifications |
Assay | 98.5%~101.5% |
Transmittance | ≥98 |
Speciific rotation | -26.7°~-29.0° |
Chloride | ≤0.02% |
Sulfate | ≤0.02% |
Heavy metals | ≤10PPM |
Arsenic | ≤1PPM |
Iron | ≤0.01% |
Residue on ignition | ≤0.1% |
Loss on drying | ≤0.2% |
pH value | 5.0~6.5 |