item | Specifications | Results |
Appearance | Colorless or white crystal | Colorless or white crystal |
Identification | Complies with the limit test | Conforms |
Purity | 99.5~101.0% | 99.94% |
Moisture | ≤1.0% | 0.14% |
Sulphated Ash | ≤0.001 | 0.0006 |
Sulphate | ≤150ppm | <150ppm |
Ocalic acid | ≤100ppm | <100ppm |
Heavy Metals | ≤5ppm | <5ppm |
Aluminium | ≤0.2ppm | <0.2ppm |
Lead | ≤0.5ppm | <0.5ppm |
Arsenic | ≤1ppm | <1ppm |
Mercury | ≤1ppm | <1ppm |