质量标准

项目                                    分析纯    
                                        (AR)
外观Appearance                          无色透明至黄色液体
红外光谱鉴定Infrared spectrometry       和对照品匹配
纯度Purity                              ≥99.0% (GC)
醇溶性实验Solubility in Methanol        溶液透明
折光率Refractive index                  1.5340 - 1.5360   (20°C, 589 nm)
比重Specific gravity (20/20)            1.1750 - 1.1760