首页
2-己酮

2-己酮

CAS号:591-78-6
英文名:2-Hexanone
若想填写更详细的询价信息,请点击进入询价页面
点我
化合物简介
2-Hexanone (methyl butyl ketone, MBK) is a ketone used as a general solvent and in paints. It dissolves cellulose nitrate, vinyl polymers and copolymers, and natural and synthetic resins. It is recommended as a solvent because it is photochemically inactive; however it has a very low safe threshold limit value (MAK value). 2-Hexanone is absorbed through the lungs, orally and dermally and its metabolite, 2,5-hexanedione, is neurotoxic. Animal tests have shown that the neurotoxic effect of 2-hexanone may be potentiated by simultaneous administration of 2-butanone (methyl ethyl ketone, MEK).
基本信息
编号系统
物化性质
安全信息
生产方法及用途
生产方法
1.制备方法:由正丙基乙酰乙酸乙酯与氢氧化钠溶液共热制得。将正丙基乙酰乙酸乙酯与15%氢氧化钠溶液混合,加热回流6h,放冷后加食盐饱和,用乙醚提取。乙醚提取液再用食盐水洗涤,以无水氯化钙干燥后,回收乙醚。剩余物蒸馏之,收集127-130℃馏分,即为2-已酮。
2. 烟草:FC,40。
用途
用作溶剂和有机合成中间体。该品易燃,能与空气形成爆炸性混合物。