项目 优级纯
(GR)
外观Appearance 白色至类白色结晶或粉末
红外光谱鉴别Infrared spectrometry 和对照品匹配
纯度Purity >99.0% (GC)
熔点Melting point 47°C - 50°C
醇溶性实验Solubility in Methanol 溶液透明
项目 化学纯
(CP)
纯度Purity ≥98%
熔点Melting point 46°C-49°C
乙醇溶解试验Solubility(in alcohol) 合格
灼烧残渣Residue ignition ≤0.1%
≥99%, Kosher,FCC:
外观Appearance White to Off-White Solid
红外光谱鉴别Infrared spectrometry Conforms to Structure
纯度Purity(GC) ≥99.0%
纯度Purity (Titration by NaOH) 99.0 - 101.0 %
溶点Melting Point 47.0 - 50.0 °C
醇溶解试验solubility in ETOH Clear,Colorless to Faint Yellow, 5% in Ethanol
酸值Acid Value ≤2.00
砷Arsenic (As) ≤3 ppm
镉Cadmium (Cd) ≤1 ppm
汞Mercury (Hg) ≤1 ppm
铅Lead (Pb) ≤10 ppm
|