Estimation of Physicochemical Properties of Ionic Liquid HPRe04 Using Surface Tension and Density
Estimation of Physicochemical Properties of Ionic Liquid HPRe04 Using Surface Tension and Density
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DOI：
10.1021/je9000679
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发表时间：
2009-09
影响因子：
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通讯作者：
S. Zang;Dawei Fang;Jian-xin Li;Yu-Yang Zhang;S. Yue
中科院分区：
文献类型：
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作者：
S. Zang;Dawei Fang;Jian-xin Li;Yu-Yang Zhang;S. Yue
制备了离子液体hpreo4 （n -己基吡啶苯酸酯）。在（293.15 ~ 343.15）k的温度范围内测定了IL的密度和表面张力，用外推法估计了IL的离子体积和表面熵。根据Glasser的理论，估计了IL的标准摩尔熵和晶格能。用Kabo法和Rebelo法分别计算了在298 K和Δ l g H m 0 （tb）条件下IL的摩尔蒸发焓，分别为：Δ l g H m 0 （298 K）。根据间隙模型计算了IL HPRe0 4 （α）的热膨胀系数，与实验值的数量级吻合度为3.32%。
An ionic liquid (IL) HPReO 4 (N-hexylpyridine rheniumate) was prepared. The density and surface tension of the IL were determined in the temperature range of (293.15 to 343.15) K. The ionic volume and surface entropy of the IL were estimated by extrapolation. In terms of Glasser's theory, the standard molar entropy and lattice energy of the IL were estimated. Using Kabo's method and Rebelo's method, the molar enthalpy of vaporization of the IL, Δ l g H m 0 (298 K), at 298 K and Δ l g H m 0 (T b ), at hypothetical normal boiling point, were estimated, respectively. According to the interstice model, the thermal expansion coefficient of IL HPRe0 4 , α, was calculated, and in comparison with experimental value, the magnitude order is in good agreement by 3.32 %.