问题：CuI怎么纯化？
类型：求助 (悬赏分:3分)
提问：rrrzzz
等级：▲
版块：有机化学问题(jimuwei,fpcwin1211,netpanda,yjgzfl,Ftian,)
信誉：77%
回复：2
阅读：609
时间：2007-04-05 11:49:28 编辑加入/取消收藏订制/取消短消息举报该贴

CuI长期放置，会有什么杂质，该怎么纯化呢？

回复人：zhujieming,▲▲▲▲▲ (sioc) 时间：2007-04-06 16:13:14 编辑

1楼

Cuprous iodide [7681-65-4] M 190.5, m 605°, b 1336°, d^5 5.63. It can be freshly prepared by
dissolving an appropriate quantity of CuI in boiling saturated aqueous NaI over 30min. Pure CuI is obtained by
cooling and diluting the soln with water, followed by filtering and washing sequentially with H2O, EtOH,
EtOAc and Et2O, pentane, then drying in vacuo for 24h [Dieter, / Am Chem Soc 107 4679 1985].
Alternatively wash with H2O then EtOH and finally with Et2O containing a little iodine. Traces of H2O are
best removed first by heating at 110° and then at 400°. Exess of I2 is removed completely at 400°. It dissolves
in Et2O if an amine is present to form the amine complex. [Chem lnd (London) 1180 1957.]

回复人：rrrzzz,▲ (学生) 时间：2007-04-07 23:00:39 编辑	2楼
已经打分了。

得分人：zhujieming：3,

问题讨论没有结束...

您尚未进入本论坛,登录之后才可以回贴

5msec