项目Item 分析纯 化学纯
(AR) (CP)
含量Assay,% ≥ 98 97
熔点范围Melting range,℃ 42.0-46.0(2) 40.0-48.0(2)
灼烧残渣(以硫酸盐计)Ignition residue,% ≤ 0.03 0.05
乙醇溶解度试验Solubility in ethanol 合格 合格
项目 优级纯
(GR)
纯度Purity ≥99.0% (GC)
酸值Acid value，mgKOH/g 272-282
碘值Iodine value %l2 ≤0.5
熔点Melting point 43-44°C
皂化值Saponification value，mgKOH/g 278-284
水分Water ≤0.2%
未皂化值unsap.matter ≤0.5%
色泽Colour（Lovibond 51/4）：R ≤0.2
≥98%, FCC, FG:
grade FCC FG Kosher
外观Appearance White Solid
红外光谱鉴别Infrared spectrometry Conforms to Structure
纯度Purity (GC) ≥98%
灼烧残渣Residue on ignition (Ash) ≤0.1 %
凝固点Solidification Point 26.0 - 44.0 °C
酸值Acid Value 252.0 - 287.0 ml
皂化值Saponification Value 253.0 - 287.0
非皂化物Unsaponifiable Matter ≤0.3 %
碘值Iodine Value ≤3.0
水分Water (by Karl Fischer) ≤0.2 %
重金属Heavy Metal (as Pb) ≤0.1 ppm
Arsenic (As) ≤3.0 ppm
Cadmium (Cd) ≤1.0 ppm
Mercury (Hg) ≤1.0 ppm
品级Grade 天然, ≥98%, FCC
(natural, ≥98%, FCC)
外观Appearance White Solid
红外光谱Infrared spectrum Conforms to Structure
纯度Purity (GC) ≥98.00 %
灼烧残渣Residue on ignition (Ash) ≤0.1 %
凝固点Solidification Point 26.0 - 44.0 °C
酸值Acid Value 252.0 - 287.0 ml
皂化值Saponification Value 253.0 - 287.0
非皂化物Unsaponifiable Matter ≤0.3 %
碘值Iodine Value ≤3.0
水分Water (by Karl Fischer) ≤0.2 %
重金属Heavy Metal ≤1.0 ppm
砷Arsenic (As) ≤3 ppm
镉Cadmium (Cd) ≤1 ppm
汞Mercury (Hg) ≤1 ppm
铅Lead (Pb) ≤1.0 ppm
13Carbon Analysis ≥1.00 ppm
14Carbon Analysis ≥1.00 dpm/gC
Deuterium Analysis ≥1.0 ppm
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