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MTBE(甲基叔丁基醚)

MTBE(甲基叔丁基醚)

甲基(ji)(ji)叔丁(ding)基(ji)(ji)醚(mi)(mi),英文缩(suo)写为(wei)MTBE(methyl tert-butyl ether),溶点-109℃,沸点55.2℃,是(shi)(shi)(shi)一种无色、透明(ming)、高辛烷(wan)(wan)值(zhi)的(de)液体,具有(you)(you)醚(mi)(mi)样气(qi)味,是(shi)(shi)(shi)生(sheng)产(chan)(chan)无铅(qian)(qian)、高辛烷(wan)(wan)值(zhi)、含氧(yang)(yang)汽(qi)油(you)(you)(you)(you)的(de)理想(xiang)调(diao)合组份,作(zuo)为(wei)汽(qi)油(you)(you)(you)(you)添加(jia)(jia)剂已经在全(quan)世界范围内(nei)普遍(bian)使用(yong)。它不(bu)仅能有(you)(you)效提高汽(qi)油(you)(you)(you)(you)辛烷(wan)(wan)值(zhi),而且还能改善汽(qi)车性能,降低排气(qi)中CO含量(liang),同时降低汽(qi)油(you)(you)(you)(you)生(sheng)产(chan)(chan)成本(ben)。另外(wai),MTBE还是(shi)(shi)(shi)一种重要(yao)化(hua)(hua)工原料,如通过裂(lie)解可(ke)制备高纯异(yi)丁(ding)烯。MTBE是(shi)(shi)(shi)含氧(yang)(yang)量(liang)为(wei)18.2%的(de)有(you)(you)机醚(mi)(mi)类。它的(de)蒸汽(qi)比空(kong)气(qi)重,可(ke)沿(yan)地面扩散,与强氧(yang)(yang)化(hua)(hua)剂共存(cun)时可(ke)燃烧。MTBE的(de)纯度(du)约为(wei)97%~99.5%,分子式为(wei):CH3OC(CH3)3,相对(dui)分子量(liang):88.15,CAS NO.:1634-04-4甲基(ji)(ji)叔丁(ding)基(ji)(ji)醚(mi)(mi)是(shi)(shi)(shi)一种高辛烷(wan)(wan)值(zhi)(研究(jiu)法辛烷(wan)(wan)值(zhi)115)汽(qi)油(you)(you)(you)(you)添加(jia)(jia)剂,化(hua)(hua)学含氧(yang)(yang)量(liang)较甲醇低得多,利(li)于(yu)暖车和节(jie)约燃料,蒸发(fa)潜热低,对(dui)冷启动(dong)有(you)(you)利(li),常用(yong)于(yu)无铅(qian)(qian)汽(qi)油(you)(you)(you)(you)和低铅(qian)(qian)油(you)(you)(you)(you)的(de)调(diao)合。也(ye)可(ke)以(yi)重新(xin)裂(lie)解为(wei)异(yi)丁(ding)烯,作(zuo)为(wei)橡胶(jiao)及其它化(hua)(hua)工产(chan)(chan)品的(de)原料。质量(liang)最好的(de)甲基(ji)(ji)叔丁(ding)基(ji)(ji)醚(mi)(mi),可(ke)以(yi)用(yong)作(zuo)医(yi)药,是(shi)(shi)(shi)医(yi)药中间体。
中文名

甲(jia)基叔丁基醚(mi)

外(wai)文名

methyl tert-butyl ether
缩    写
MTBE
沸(fei)    点
55.2℃
熔    点
-109℃
分(fen)子式
CH3OC(CH3)3



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