LiCl的Pitzer参数的优化

On Pitzer Parameters of LiCl and Li_2SO_4

由于锂盐的重要性和氯化锂在电解质中的特殊性，ＬｉＣｌ和Ｃｉ２ＳＯ４的热力学问题一直被化学家所重视。Ｐｉｔｚｅｒ在其关于电解质的系列论文中给出的ＬｉＣｌ参数，适用的最大浓度仅为６ｍ。１９８８年Ｈｅｅ—Ｔａ１Ｋｉｍ等给出了适用于浓度直达饱和的参数。本文根据多年来我们对含锂盐体系的研究结果，经多种处理获得了ＬｉＣｌ和Ｌｉ２ＳＯ４的新Ｐｉｔａｅｒ参数。发现对于０—６ｍ和６ｍ一饱和不同浓度范围，ＬｉＣｌ的Ｐｉｔｚｅｒ参数截然不同。所获得的参数对于溶解度计算特别有意义。作者还从ＬｉＣｌ溶液的结构讨论了造成参数不同的原因。

Thermodynamics of LiCl and Li2SO4 solutions is of importance because of its particular behavior. The Parameters of of LiCl was listed for 0-6m in Pizer's second paper. In 1988 Hee-Talk Kim et al. give parameters of LiCl for concentration up to saturation. New sets of Pitzer Parameters of LiCl based on data of our studies and data in literaturs are given in this paper. Two different sets of parameters can be used for different usage. Discussion adout different sets of parameters from structure of aqueous LiCl solution is made.