| 项目Item 分析纯 (AR) 含量(C4H8O)Assay,% ≥ 99.5% 密度(20℃)Density,g/ml 0.801~0.810 沸程Boiling range,℃ 74.0~77.0 折光率Refractive index,nD20 1.379~1.381 酸度[以CH3CH2CH2COOH计]Acidity,% ≤ 0.5
项目 化学纯 (CP) 沸点Boiling range/℃ 74.0~75.0 含量Assay ≥98.5% 比重Specific gravity (20/20°C) 0.801~0.804 酸度Acidity ≤0.8% 折光率Refractive index n20/D 1.379~1.381
|