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hbf

金虫 (著名写手)

[求助] 一个化学反应结果,我迷茫了,求高手指点

四水醋酸锰溶解到无水乙醇中,搅拌1小时,后加入乙酰丙酮作络合剂,再加入盐酸作催化剂,然后旋涂法制薄膜。
作者Y.M. Kim在文章Solid State Communications 129 (2004) 175–178中提到:
The zinc acetate dihydrate (Zn(CH3COO)2·2H2O,
.99.9%) and manganese acetate tetrahydrate (Mn(CH3-
COO)2·4H2O, .99.9%) were dissolved in ethanol and this
solution was stirred for 1 h at room temperature. We added
acetylaceton as a chelating agent and HCl as a catalyst to the
solution with 1 h stirring. Mn-doped ZnO films were
deposited on silicon (100) substrate of 2 £ 2 cm2 by spin
coating at room temperature。
但是我在重复此实验时,发现乙酸锰溶解在乙醇中,刚开始约30分钟溶液是清澈透明的,但是在搅拌下去,慢慢的变浑浊了,不清澈不透明了,加入乙酰丙酮及盐酸搅拌也不能变均匀清澈透明溶液,更不要说旋涂制薄膜了。
还有就是乙酸锰溶解在乙二醇甲醚中,也出现这种情况,就是刚开始时约30分钟是清澈透明溶液,在搅拌下去就变成浑浊液体了。
虫虫迷茫了?不知道为什么?是什么 化学反应?望高手指点迷津。

[ Last edited by hbf on 2011-5-29 at 20:24 ]
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冰镇雪碧

金虫 (正式写手)

【答案】应助回帖

是否采用了气体保护?
2楼2011-05-30 16:12:28
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hbf

金虫 (著名写手)

已经解决了,谢谢大家
3楼2011-05-30 22:04:14
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hbf

金虫 (著名写手)

引用回帖:
Originally posted by 冰镇雪碧 at 2011-05-30 16:12:28:
是否采用了气体保护?

不是保护气体,可能是酸碱环境
4楼2011-05-30 22:06:38
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