质量标准

项目                                 优级纯  
                                      (GR)
纯度Purity                           >99.0%(GC)
外观Appearance                       无色透明液体
红外光谱测定Infrared spectrometry    和对照匹配
折光率Refractive index n20/D         1.4260 - 1.4280
酸度Acidity（As HAc）                ≤0.01%
水份water                            ≤0.1%  
色度 Pt-Co                           ≤30
沸程 /℃                              190~205



项目                                  化学纯    
                                       (CP)
沸程/℃                               190.0~203.0  
密度（20℃）/（g/mL）                 0.985~0.990  
水溶解试验                            合格  
酸度(以H+计)/（mmol/100g）            ≤0.17  
乙醇溶解试验                          合格  
折光率(n20D)                          1.427~1.429  
灼烧残渣                              ≤0.01%  

贮存

密封阴凉干燥保存。

用途

溶剂。有机合成.