外观Appearance 白色结晶或结晶粉末
红外光谱鉴定Infrared spectrometry 和对照匹配
熔点Melting point 226°C - 230°C
含量Assay Acid 98.0 - 101.0 % (on dried substance)
可碳化物质readily carbonizable substances: 合格
安息香和水杨酸benzoic and salicylic acids: 合格
对甲苯磺酰胺toluenesulfonamides (GC): < 25 ppm
醇溶解性试验Solubility in EtOH 透明
热水溶解性试验Solubility in hot Water 透明
干燥损失Loss on drying <1 % (105°C, 2 hrs)
重金属Heavy metals (as Pb) <10 ppm
硫酸盐灰分Sulfated ash <0.1 %
痕量分析Trace analysis Type:
砷As measure < 3 ppm
硒Se measure < 30 ppm
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