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林夕尹口

金虫 (小有名气)

[求助] 油酸铁制备磁性纳米粒子

参考文献做了一下油酸铁制备磁性纳米粒子,原文如下:
2 mmol of FeCl3 ·6H2O and 1 mmol of FeCl2 ·4H2O was dissolved in 6 mL of H2O.
Next, 2.54 mL of oleic acid, 14 mL of hexane, and 8 mL of ethanol were added and stirred at room temperature for 30 min.
Then, 0.32 g of NaOH was added to the above solution and heated with stirring in a closed vessel at 70 °C for 4 h.  The resultant solution was separated from two different layers using a separatory funnel.

问题就出来了,加入NaOH 70℃搅拌4h后,出现了超级多沉淀。。基本看不出分层,估计正己烷都蒸没了。。。这里的正确操作到底是怎样啊~~~

还请各位高手指导
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fengwoyunsi

新虫 (小有名气)

【答案】应助回帖

你使用冷却水回流没?
2楼2013-08-05 21:19:18
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