化学纯 (CP)
灼烧残渣(以硫酸盐计)Ignition residue,% ≤0.01
铁(Fe)Iron,% ≤0.001
酸溶解试验Solubility in alcohol 合格
熔点范围Melting point,℃ 47.0~51.5(2)
羟基值Hydroxy value,mg/g 210~232
皂化值Saponification,mg/g ≤1.0
酸值Acid value,mg/g ≤0.5
碘值Iodine value,g/100g ≤1.0
98%:
外观Appearance 白色薄片
红外光谱鉴别Infrared spectrometry 符合
碳链分布:
纯度Purity(C16) ≥98.0% (GC)
C18 0-1%
C14 0-1%
烷烃%Alkyl-hydrocarbon ≤0.5%
熔点Melting point 49°C - 51.8°C