项目Item　　　　　　　　　　             分析纯　　 　 化学纯

                                         (AR)           (CP)

含量[CH3(CH2)5COOC2H5]Assay,%　　　     ≥ 98.5         97.0

密度(20℃)Density,g/ml                                 0.868～0.872     0.868～0.872

沸点Boiling point,℃                                      186.0～188.0     186.0～188.0

折光率Refractive index,nD20                          1.4110 - 1.4130   1.412～1.414

游离酸Free acids,%                                       ≤ 0.015        0.03

≥99%, FCC, FG:

grade                                                          FCC FG Halal Kosher NI

外观Appearance                                          Colorless Liquid

红外光谱鉴别Infrared spectrometry               Conforms to Structure

纯度Purity(GC)                                            ≥99.0%

相对密度Specific gravity (25/25°C)              0.8670 - 0.8720

折光率Refractive index n20/D                       1.4110 - 1.4150

醇溶解试验solubility in 70% ETOH               Clear Colorless，c = 1mL / 3mL; 70% Ethanol 

酸值Acid Value                                           ≤1.00

砷Arsenic (As)                                            ≤3 ppm

镉Cadmium (Cd)                                        ≤1 ppm

汞Mercury (Hg)                                          ≤1 ppm

铅Lead (Pb)                                               ≤10 ppm