| 醋酸铅在离子液体中溶解机理的研究 |
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| 引用本文： | 王伟,寇元,寇新华. 醋酸铅在离子液体中溶解机理的研究[J]. 石油化工, 2002, 31(11): 910-912 |
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| 作者姓名： | 王伟 寇元 寇新华 |
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| 作者单位： | 1. 北京大学,化学与分子工程学院,北京,100871
2. 江苏天音化工股份有限公司,江苏,南京,214200 |
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| 摘 要： | 通过[bmim]Cl和Pb(OAc)2混合反应后析出PbCl2沉淀,制备得到溶解有醋酸铅的离子液体[bmim]OAc。实验发现,即使使用过量的醋酸铅,PbCl2仍然不能沉淀完全,这表明离子液体中的Pb2+离子并不是以游离形式存在的,而是以配位的形式存在,并且由离子液体包裹着。因此,醋酸铅在离子液体[bmim]OAc中的溶解度得到增加,平均溶解度达到1 1mmol/ml,最大溶解度达到3 0mmol/ml。
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| 关 键 词： | 离子液体 醋酸铅 1-甲基-3-丁基咪唑氯 溶质结构 |
| 文章编号： | 1000-8144(2002)11-0910-03 |
| 修稿时间： | 2002-06-30 |
Dissolution Mechanism of Lead Acetate in Ionic Liquids |
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| WANG Wei ,KOU Yuan ,KOU Xin-hua. Dissolution Mechanism of Lead Acetate in Ionic Liquids[J]. Petrochemical Technology, 2002, 31(11): 910-912 |
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| Authors: | WANG Wei KOU Yuan KOU Xin-hua |
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| Affiliation: | WANG Wei 1,KOU Yuan 1,KOU Xin-hua 2 |
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| Abstract: | Pb(OAc) 2/OAc solution was prepared by precipitation of PbCl 2 from a mixture of Cl and Pb(OAc) 2.It was found that PbCl 2 could not be precipitated completely even using excess Pb(OAc) 2,indicating that Pb 2 ion in ionic liquid was not free but was coordinated and therefore protected by the ionic liquid OAc.The solubility of Pb(OAc) 2 in OAc was thus improved,reaching 1 1 mmol/ml on average and a maximum of 3 0 mmol/ml. |
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| Keywords: | ionic liquids lead acetate Cl structure of solute |
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