Items | Specifications |
Appearance | White crystalline powder |
Assay | ≥99% |
Metling point | 110.0-115.0℃ |
PH (3% water solution) | 3.5-5.5 |
Free of VC | ≤10 ppm |
Heavy metal | ≤10 ppm |
Loss on drying | ≤0.5% |
Residue on ignition | ≤0.2% |
Items | Specifications |
Appearance | White crystalline powder |
Assay | ≥99% |
Metling point | 110.0-115.0℃ |
PH (3% water solution) | 3.5-5.5 |
Free of VC | ≤10 ppm |
Heavy metal | ≤10 ppm |
Loss on drying | ≤0.5% |
Residue on ignition | ≤0.2% |