外观Appearance 无色透明液体 色度Color scale <10 APHA >红外光谱鉴定Infrared spectrometry 和对照匹配 纯度Purity ≥97.0% (GC) 水分Water <0.15 % >折光率Refractive index 1.4490 - 1.4510 (20°C, 589 nm) 比重Specific gravity (20/20) 0.8830 - 0.8860 酸值Acid value <4 mg KOH/g >二脂diester < 0.2% (GC) 稳定剂Stabilizer 200 - 400 ppm MEHQ |