项目Item 分析纯
(AR)
熔点范围Melting point,℃ 57.0~59.0
灼烧残渣(以硫酸盐计)Ignition residue,% ≤ 0.05
苯溶解试验Solubility in benzene 合格
羟基值Hydroxy value,mg/g 202~208
皂化值Saponification,mg/g ≤ 0.5
酸值Acid value,mg/g ≤ 0.5
碘值Iodine value,g/100g ≤ 1.0
铁(Fe)Iron,% ≤ 0.0005
97%:
外观Appearance 白色结晶
红外光谱鉴别Infrared spectrometry 和对照品匹配
纯度Purity ≥97.0% (GC)
熔点Melting point 57°C - 60°C
醇溶性实验Solubility in hot Methanol 溶液透明
99%:
外观Appearance White Powder, Flakes, Pellets or Solid
红外光谱鉴别Infrared spectrometry Conforms to Structure
纯度Purity(GC) ≥99.0%
熔点Melting point 57°C - 60°C
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