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鄰香蘭素價格

規格:99%
包裝:20kg/桶
最小購量:1
CAS:148-53-8
分子式:C8H8O3
分子量:152.15

鄰香蘭素價格

香蘭素和鄰位香蘭素分離

  鄰香蘭素、異香蘭素與香蘭素的分離,工業上使用減壓蒸餾的方法,俗稱雙蒸雙結。也就是減壓蒸餾后,甲苯重結晶,然后再次減壓蒸餾,水甲醇重結晶。

  香蘭素溶點80,鄰香蘭素熔點41,可以用少量水加熱到50,抽濾。固體再重結晶。

鄰香蘭素用于生產鄰藜蘆醚, 醫藥中間體。旺季時醫藥級價格超過10萬/噸。
亚洲综合小说另类图片五月天
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