| 等压法测定298.15K下LiCl-CaCl2-H2O体系的活度系数 |
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| 引用本文： | 龙光明,姚燕,王凤琴,王瑞陵.等压法测定298.15K下LiCl-CaCl2-H2O体系的活度系数[J].物理化学学报,1999,15(10):956-960. |
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| 作者姓名： | 龙光明 姚燕 王凤琴 王瑞陵 |
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| 作者单位： | Institute of Salt Lakes,Chinese Academy of Science,Xi'an 710043 |
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| 摘 要： | 电解质水溶液热力学性质的研究一直是一个很活跃的研究领域.对含锂水盐体系热力学性质的研究不仅对电解质水溶液理论,而且对盐湖锂资源的开放利用都有非常重要的意义.姚燕等对ＬｉＣｌＫＣｌＨ2Ｏ1],ＬｉＣｌＭｇＣｌ2Ｈ2Ｏ2],ＬｉＣｌＭｇＳＯ4Ｈ2Ｏ3,4],ＬｉＣｌＬｉ2ＳＯ4Ｈ2Ｏ5]体系多温下热力学性质进行了研究,应用Ｐｉｔｚｅｒ电解质水溶液理论模型进行处理,计算出ＬｉＣｌ在不同体系中,很大的浓度范围内的活度系数.但在盐湖卤水中,ＣａＣｌ2的存在很普遍.对ＬｉＣｌＣａＣｌ2混合物在水溶液中的热力学性质研究对理解ＬｉＣｌ在盐…
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| 关 键 词： | LiCl CaCl2 渗透系数 活度系数 等压测定 Pitzer参数 |
| 收稿时间： | 1998-12-03 |
| 修稿时间： | 1999-03-30 |
Isopiestic Determination of Activity Coefficients of LiCl and CaCl2 in LiCl-CaCl2-H2O System at 298.15K |
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| Long Guangming,Yao Yan,Wang Fengqin,Wang Riling.Isopiestic Determination of Activity Coefficients of LiCl and CaCl2 in LiCl-CaCl2-H2O System at 298.15K[J].Acta Physico-Chimica Sinica,1999,15(10):956-960. |
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| Authors: | Long Guangming Yao Yan Wang Fengqin Wang Riling |
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| Institution: | Institute of Salt Lakes,Chinese Academy of Science,Xi'an 710043 |
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| Abstract: | The isopiestic method was used to determinate isopiestic molality and osmotic coefficients in single salt solutions of LiCl-H2(molality range from 0.5 to 9.0 mol•kg -1 ), CaCl2-H2O(molality range from 0.35 to 5.2 mol•kg -1 ) and multisalt solution LiCl-CaCl2-H2O(ionic strength range from 0.5 to 15.7 mol•kg -1 ) at 298.15K, from which Pitzer's interaction parameters of single salt ,mixed salts of the systems were obtained. The mean ionic activity coefficients of LiCl、CaCl 2 in pure and mixed solutions were reported. |
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| Keywords: | LiCl CaCl2 Activity coefficients Isopiestic method Pitzers parameters |
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