| |
CAS: | 74-88-4 |
分子式: | CH3I |
分子量: | 141.94 |
沸点: | 42.5℃ |
熔点: | -66-43℃ |
中文名称: | |
英文名称: | methyl iodide(iodomethane) | metylu jodek | metylu jodek (polish) | monoiodomethane | monoioduro di metile | monoioduro di metile (italian) | rcra waste number u138 | Methane,iodo- | 10domethane | methyljodide (dutch) | methyliodide(iodomethane) | iodo-methane | Methyliodid | Iodmethan | Jodmethan | Methyl iodide(CH3I) | Methyliodide | Methyl iodide | methyljodide | methyljodid (german) | methyljodid | iodo-methan | joodmethaan (dutch) | joodmethaan | jod-methan (german) | jod-methan | iodure de methyle (french) | iodure de methyle | iodometano (italian) | iodometano | halon 10001 | iodo-Methane | Iodomethane |
|
性质描述: | 无色易燃体。熔点-66.45℃,沸点42.4℃,相对密度2.279(20/4℃),折光率1.5317。能与乙醇、乙醚混溶,溶于丙酮和苯,微溶于水。见光变红色。 |
生产方法: | 由硫酸二甲酯经卤化而得。将水、碘化钾、碳酸钙依次加入反应锅内,搅拌加热使碘化钾完全溶解。升温至60-65℃,滴加硫酸二甲酯,生成的碘甲烷逐渐被蒸出,收集蒸馏物,分去水层即为碘甲烷。进一步精制时,可经无水氯化钙干燥,加几粒碘化钾进行蒸馏,收集41-43℃馏分即可,收率约90%。 |
用途: | 医药工业用于碘甲基蛋氨酸(维生素U)、镇痛药、解毒药磷敌等药物的生产,还用于有机合成作甲基化试剂、灭火剂等。 |