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songchanghua

银虫 (正式写手)

[求助] 制备[TEABS]3PW12O40, [MIMBS]3PW12O40, [PyBS]3PW12O40的提纯问题 已有1人参与

各位大神:
      以[MIMBS]3PW12O40为例,文献中以0.06 molMIMBS 和0.02H3PW12O40室温反应即可得到[MIMBS]3PW12O40,但是,购买到的磷钨酸是带X个结晶水的,在称量的过程中一定是加过量,那么在合成结束的时候,如何将过量的反应物去除呢?文献中这一步的描述都很简单:In a round-bottomed flask, 0.06 mol of dry MIMBS was added into an aqueous solution containing 0.02 mol of H3PW12O40 , followed by vigorous stirring at room temperature for 24 h. Continuous evacuation at room temperature was conducted to completely remove the water moisture and the final product of [MIMBS]3PW12O40 was carefully collected in a powder form.
难道必须要严格按照0.06 molMIMBS 和0.02H3PW12O40的量来加?有没有办法提纯[MIMBS]3PW12O40?
请合成过该类IL-POM的虫友帮帮我!不胜感激!
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luner1803

木虫 (著名写手)

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与,应助指数 +1
songchanghua: 金币+10, ★有帮助, 谢谢 2015-04-13 10:33:29
songchanghua: 金币+5, ★有帮助, 谢谢 2015-06-23 08:58:08
可以先确定阳离子和阴离子浓度,例如滴定PW酸

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2楼2015-04-04 20:29:35
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