项目                                    分析纯
                                        (AR)
外观Appearance                          无色透明至淡黄色液体
红外光谱鉴别Infrared spectrometry       符合
纯度Purity                              ≥99.0% (GC)
比重Specific gravity (20/20°C)         0.8900 - 0.8930  
折光率Refractive index n20/D            1.3830 - 1.3870  
酸值Acid value                          
<1 mg KOH/g >

项目                                    化学纯
                                        (CP)
沸点Boil point/℃                       97.0～100.0  
含量Assay                               ≥98.0%  
比重Specific gravity (20/20°C)         0.890～0.892  
酸度Acidity(以H+计)/（mmol/100g）       ≤0.17  
折光率Refractive index n20/D            1.3839～1.3849  
蒸发残渣vaporation residue              ≤0.005%


≥98%, FCC, FG：


外观Appearance                           无色液体
红外光谱鉴别Infrared spectrometry        Conforms to Structure
纯度Purity                               ≥98.0% (GC)
相对密度Specific gravity (25/25°C)      0.8860 - 0.8890
折光率Refractive index n20/D             1.3830 - 1.3850
酸值Acid Value                           ≤2.0 ml
砷Arsenic (As)                           ≤3 ppm
镉Cadmium (Cd)                           ≤1 ppm
汞Mercury (Hg)                           ≤1 ppm
铅Lead (Pb)                              ≤1 ppm