項(xiàng)目Item 化學(xué)純
(CP)
不溶物Insoluble matter ≤0.02%
熔點(diǎn)Melting point,℃ 68.0~70.0
灼燒殘?jiān)黂esidue ignition ≤0.05%
項(xiàng)目 優(yōu)級(jí)純
(GR)
外觀Appearance 白色至淡黃色結(jié)晶粉末
紅外光譜鑒別Infrared spectrometry 符合
純度Purity ≥99.5% (GC)
熔點(diǎn)Melting point 69°C - 70°C
苯溶解試驗(yàn)Solubility in benzene 合格
|