Appearance:White crystal
Assay:≥99.5%
Moisture:≤0.03%
PH:10.0-11.5
Solubility:Freely soluble in water, sparing soluble in alcohol and very little soluble in ethyl acetate.
Heavy metal:≤5ppm
Loss on drying:≤0.5%
Sulfated ash:≤0.1%
Fe:≤5ppm
Cl:≤3ppm
Ni:≤7.5ppm
Related substance:≤1.0%