异辛酸

项目Item                                化学纯
　                                      （CP）
含量Assay                               ≥98.0%
相对密度Specific gravity (20/20°C)     0.905-0.910
沸程Boiling range,℃                    225-229(95.0%)
折光率Refractive index n20/D            1.424-1.426
乙醇溶解试验Solubility in ethanol　     合格
灼烧残渣（以硫酸盐计）Ignition residue  ≤ 0.10%
水分Water                               ≤ 0.2%


项目                                    优级纯    
                                         (GR)
外观Appearance                          透明液体
红外光谱鉴别Infrared spectrometry       和对照品匹配
纯度Purity                              >99.0% (GC)
水分Water                              
<0.1 % >折光率Refractive index n20/D            1.4240 - 1.4260
相对密度Specific gravity (20/20°C)     0.9060 - 0.9100