Critical point and phase separation for an ionic system
Critical point and phase separation for an ionic system
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DOI：
10.1021/j100256a006
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发表时间：
1985-05
期刊：
影响因子：
--
通讯作者：
K. Pitzer;M. P. Lima;D. R. Schreiber
中科院分区：
文献类型：
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作者：
K. Pitzer;M. P. Lima;D. R. Schreiber
对于含有熔盐的体系，观察到了液液相分离和一个临界点。具体来说，该体系是四正丁基苦味酸铵-1-氯庚烷，其T/subc/=414.4 K，chi/subc/=0.08/sub5/摩尔分数苦味酸盐，V/subc/=2300 cm/sup3/xmol/sup-1/苦味酸盐。苦味酸盐的临界摩尔分数很小，相图非常不对称。临界指数显示平均场值为0.50，在临界点附近没有可检测到的偏离，尽管目前的实验并不是为最后一个主题的非常精确的测试而设计的。参考文献5篇，附图2幅，表1篇。
Liquid-liquid phase separation and a critical point have been observed for a system involving a fused salt. Specifically the system is tetra-n-butylammonium picrate-1 -chloroheptane for which T/sub c/ = 414.4 K, chi/sub c/ = 0.08/sub 5/ mole fraction picrate, and V/sub c/ = 2300 cm/sup 3/ x mol/sup -1/ picrate. The critical mole fraction of picrate is very small, and the phase diagram is very asymmetric. The critical exponent shows the mean field value of 0.50 with no detectable departure near the critical point, although the present experiments were not designed for a very precise test of the last topic. 5 references, 2 figures, 1 table.