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A new equation for predicting the density of multicomponent aqueous solutions conforming to the linear isopiestic relation

机译:符合线性等渗关系的多组分水溶液密度预测新方程

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The linear isopiestic relation has been used together with well-known thermodynamic equations to establish a new simple predictive equation for density. This equation can provide the density for multicomponent solutions conforming to the linear isopiestic relation using only information on the corresponding binary sub-systems of equal water activity. No additional empirical parameters are involved. The predictive capability of the equation has been tested by comparison with the density measurements for the ternary systems NaCl-KCl-H2O, NaCl-CaCl2-H2O, KCl-CaCl2-H2O, NaCl-MgCl2-H2O, NaCl-Na2SO4-H2O, NaCl-MgSO4-H2O and NaBr-KCl-H2O and their corresponding binary subsystems over the whole experimental composition ranges at 298.15 K. The agreement between the predicted and measured densities is excellent over the entire experimental composition ranges. [References: 37]
机译:线性等渗关系已与众所周知的热力学方程一起使用,以建立密度的新的简单预测方程。该方程式可以仅使用有关水活度相等的相应二元子系统的信息,为符合线性等渗关系的多组分溶液提供密度。不涉及其他经验参数。通过与三元体系NaCl-KCl-H2O,NaCl-CaCl2-H2O,KCl-CaCl2-H2O,NaCl-MgCl2-H2O,NaCl-Na2SO4-H2O,NaCl的密度测量值进行比较,测试了方程的预测能力-MgSO4-H2O和NaBr-KCl-H2O及其相应的二元子系统在整个实验组成范围内为298.15K。在整个实验组成范围内,预测密度和测量密度之间的一致性极好。 [参考:37]

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