99%:
品级Grade 分析纯
(AR)
外观Appearance 透明液体
红外光谱鉴别Infrared spectrometry 和对照品匹配
纯度Purity ≥98.0% (GC)
比重Specific gravity (20/20°C) 1.0510-1.0540
折光率Refractive index n20/D 1.4510 - 1.4540
水分Water <0.1 %
糠醇furfuryl alcohol: < 0.5%
1,2-戊二醇 1,2-pentanediol: < 1.5%
项目 化学纯
(CP)
沸程Boiling range,℃ 173.0~179.0
比重Specific gravity (20/20°C) 1.051~1.054
折光率Refractive index n20/D 1.449~1.453
水分water ≤1.0%
蒸发残渣Evaporation residue ≤0.05%
99%
外观Appearance colorless to faint yellow liquid
红外光谱Infrared spectrum Conforms to Structure
纯度Purity (GC) ≥99.0 %
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