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- 水中溶解度: 10 G/90 ML 水,微溶于冰醋酸,微溶于甲醇和乙醇,几乎不溶于醚。
熔点:113-118 ℃
质量标准
外观AppearanceWhite powder
红外光谱鉴别Infrared spectrometry Conforms
含量Assay Acid≥98.0 %
干燥损失Loss on drying<5 %
重金属Heavy metals<10 ppm
硫酸盐灰分Sulfated ash<0.1 %
比旋光度Specific rotation [a]20/D+22.8° ~ +28.8° (c=10, water,4 hrs) after .
痕量分析Trace analysis :
砷As< 2 ppm
钙Ca< 500 ppm
铁Fe< 80 ppm
氯Cl< 400 ppm
硫酸根SO4< 400 ppm
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