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林夕尹口金蟲 (小有名氣)
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[求助]
油酸鐵制備磁性納米粒子
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參考文獻做了一下油酸鐵制備磁性納米粒子,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. 問題就出來了,加入NaOH 70℃攪拌4h后,出現(xiàn)了超級多沉淀。;究床怀龇謱樱烙嬚和槎颊魶]了。。。這里的正確操作到底是怎樣啊~~~ 還請各位高手指導 |
新蟲 (小有名氣)
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