品级Grade 分析纯
(AR)
外观Appearance 类白色至浅灰色结晶粉末
红外光谱鉴定Infrared spectrometry 和对照品匹配
熔点Melting point 129°C - 133°C
纯度Purity >98.0% (GC)
水份water ≤0.30% (K·F)
灰份Ash ≤0.20%
品级Grade 化学纯
(CP)
水溶解试验 合格
熔点范围/℃ 129.0~133.0
灼烧残渣(以硫酸盐计),% ≤0.1
品级Grade 98%
外观Appearance White to tan powder
红外光谱Infrared spectrum Conforms to Structure
纯度Purity (Titration by NAOH) 97.5 - 102.5 %
纯度Purity(GC) ≥98.0 %
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