Item | Specifications |
Appearance | White crystalline powder or small flakes |
Specific rotation | -32.5°~-35.5° |
State of solution | Clear and colorless |
Chloride, % | ≤0.15 |
Sulfate,ppm | ≤300 |
Ninhydrin-positive substances | Not more intense than the spot with reterence solution(0.5%) |
Phosphate, ppm | ≤250 |
Heavy metals, ppm | ≤10 |
Sulphated ash,% | ≤0.30 |
Loss on drying % | ≤0.50 |
Residue on ignition, % | ≤0.1 |
Assay, % | 98.5~101.0 |
PH | 2.8~3.0 |
Brand name | Fousi chemical |
25kg fiber drum or as customized package
Clean and ventilated environment