乙醇变成溴乙烷的化学方程式 溴乙烷到乙醇的化学方程式
\u4e59\u9187\u80fd\u4e0d\u80fd\u4e00\u6b65\u8f6c\u5316\u4e3a\u6eb4\u4e59\u70f7\u6709\u7684\u8bdd\u5316\u5b66\u65b9\u7a0b\u5f0f\u53c8\u662f\u4ec0\u4e48\uff081\uff09\u6eb4\u4e59\u70f7\u5728NaOH\u6c34\u6eb6\u6db2\u4e2d\u6c34\u89e3\u751f\u6210\u4e59\u9187\u548cNaBr\uff0c\u53cd\u5e94\u4e3aCH3CH2Br+NaOHH2O \u25b3 CH3CH2OH+NaBr\uff1b\u6545\u7b54\u6848\u4e3a\uff1aCH3CH2Br+NaOHH2O \u25b3 CH3CH2OH+NaBr\uff1b\uff082\uff091-\u4e19\u9187\u5728\u6d53\u786b\u9178\u4f5c\u7528\u4e0b\u53d1\u751f\u6d88\u53bb\u53cd\u5e94CH3CH2CH2OH\u6d53\u786b\u9178 \u25b3 CH3CH=CH2\u2191+H2O\uff0c\u6545\u7b54\u6848\u4e3a\uff1aCH3CH2CH2OH\u6d53\u786b\u9178 \u25b3 CH3CH=CH2\u2191+H2O\uff1b\uff083\uff09\u4e59\u9187\u50ac\u5316\u6c27\u5316\u751f\u6210\u4e59\u919b\uff0c\u53cd\u5e94\u4e3a2C2H5OH+O2\u50ac\u5316\u5242 \u25b3 2CH3CHO+2H2O\uff0c\u6545\u7b54\u6848\u4e3a\uff1a2C2H5OH+O2\u50ac\u5316\u5242 \u25b3 2CH3CHO+2H2O\uff1b\uff084\uff09\u4e59\u919b\u53d1\u751f\u94f6\u955c\u53cd\u5e94\uff0c\u662f\u919b\u57fa\u7684\u8fd8\u539f\u6027\u88ab\u5f31\u6c27\u5316\u5242\u6c27\u5316\u4e3a\u4e59\u9178\uff0c\u53d1\u751f\u4e86\u6c27\u5316\u53cd\u5e94\uff0c\u53cd\u5e94\u7684\u5316\u5b66\u65b9\u7a0b\u5f0f\u4e3a\uff1aCH3CHO+2Ag\uff08NH3\uff092OH\u6c34\u6d74 CH3COONH4+2Ag\u2193+3NH3+H2O\uff0c\u6545\u7b54\u6848\u4e3a\uff1aCH3CHO+2Ag\uff08NH3\uff092OH\u6c34\u6d74
CH3CH2Br +H2O.----NaOH--> CH3CH2OH +HBr CH3CH2Br +NaOH.------> CH3CH2OH +NaBr \u4e24\u79cd\u5199\u6cd5\u90fd\u53ef\u4ee5\uff0c\u5176\u5b9e\u6700\u540e\u65e0\u673a\u4ea7\u7269\u90fd\u662fNaBr
乙醇脱水生成乙烯CH3CH2OH==浓硫酸/170摄氏度==CH2=CH2+H2O
乙烯与溴化氢加成
CH2=CH2 + HBr====CH3CH2Br
又或者：
CH3CH2OH + HBr ==浓硫酸==CH3CH2Br + H2O
两个方法均正确。
回答满意请采纳~~~
1)乙醇与氢溴酸共热
CH3CH2OH HBr ==> CH3CH2Br H2O
(2)乙醇与溴化钠硫酸共热
NaBr H2SO4 == NaHSO4 HBr
CH3CH2OH HBr ==> CH3CH2Br H2O
CH3CH20H + HBr→CH3CH2Br + H2O(NaOH)
先消去变成乙烯，在和溴化氢加成
CH3CH2OH＋HBr＝加热／浓H2SO4＝CH3CH2Br＋H2O
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