ITEMS | STANDARD |
Appearance | White crystalline powder |
Assay | 98.0~102.0% |
Specific rotation | +5.6°~+8.9° |
Loss on drying | =<1.0 % |
Transmittance | >=98.0% |
Sulfate (as SO4) | =<0.02 % |
Ammonium as (as NH4) | =<0.02% |
Iron (as Fe) | =<0.001% |
Heavy Metals (as Pb) | =<0.001% |
Arsenic (as As) | =<0.0001% |
pH Value | 0.5~2.0 |
Residue on ignition | =<0.1% |