ITEM | STANDARDS | ||
Appearance | White or off-white powder | ||
Assay(%) | 99.0 to 101.0 | ||
Specific rotation(°) | +23.0 - +25.0 | ||
State of solution(%) | 98.0 Min | ||
Loss on drying(%) | 0.2 Max | ||
Residue on ignition(%) | 0.1 Max | ||
Heavy metals(ppm) | 10.0 Max | ||
As(ppm) | 1.0 Max | ||
SO4(%) | 0.02 Max | ||
Fe(%) | 0.001 Max | ||
NH4(%) | 0.02 Max |