天气预报 > 其他 > 水如何鉴别苯、甲苯和溴苯
水如何鉴别苯、甲苯和溴苯
更新时间: 2020-11-17 00:00:00  

不能,溴苯密度大,在水下面,苯和甲苯分层不明显,不好鉴别的。用KMnO4溶液鉴别最好,加入KMnO4溶液,分层,且上层是无色,为苯;分层,且下层是无色,为溴苯;不分层,且使KMnO4溶液褪色的为甲苯

关键词: 如何 鉴别 甲苯

水如何鉴别苯、甲苯和溴苯相关经验

天气预报

最新推荐

页面:/news/view-2009823/ | 耗时:0.6931 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=2009823 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2009823 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2009823 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1105159,1132297,1304848,2003594,1132769,1102214,529146,1046790,1131637,1096402,607756,1129999,1129029,1367676,162628,1125164,2295726,1132459,2936207,1123577,1073302,346842,1118981,1054032,1095930,3371626,1064883,3223873,1131505,1046928) ORDER BY field (ArticleID,1105159,1132297,1304848,2003594,1132769,1102214,529146,1046790,1131637,1096402,607756,1129999,1129029,1367676,162628,1125164,2295726,1132459,2936207,1123577,1073302,346842,1118981,1054032,1095930,3371626,1064883,3223873,1131505,1046928)