白色片状结晶。溶于水熔点 280 °C (dec.)(lit.)
折射率 22 ° (C=1, 1mol/L HCl)
质量标准
Test Items Standard
Appearance White fine crystals
Assay 98.0 to 101.0%
Melting point 280 °C (dec.)(lit.)
Chloride (Cl) Not more than 0.10%
Heavy Metals (Pb) Not more than 10 PPM
Loss on Drying Not more than 0.20%
Residue on Ignition (Sulfate) Not more than 0.20%