白色结晶或结晶性粉末。易溶于热水;微溶于冷水 熔点 285 °C (dec.)(lit.)
溶解度 0.5 M HCl: 10 mg/mL
水溶解性 0.4 g/100 mL
质量标准
Test Items Standard
Appearance White fine crystals
Assay 98.0 to 101.0%
Specific Rotation [20/D] °~°
Melting point
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%