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当前文献上发表的工作,大都把浓度平衡常数作为离子强度的函数相关联,而这些关联式,目前广泛用作计算分配系数的数学模型的基础。但各研究者所得关联式,虽然都是建立在同一基本原理上,所得计算结果却各不相同。 我们根据质量作用定律,引入了R_U和R_H两个参数,用我们所提供的经验公式可直接从水相硝酸铀酰和硝酸平衡浓度出发,算出R_U和R_H值,然后通过R_U和R_H就能算出有机相中硝度铀酰和硝酸的平衡浓度。用公式算出的结果与实验值比较其偏差分别为8.9％和11.3％。本文所提出的计算公式,对国外杂志发表的200多组数据进行验算,符合情况也较好。
Most of the work published in the current literature correlates the concentration equilibrium constant as a function of ionic strength, and these correlations are now widely used as a basis for mathematical models for calculating partition coefficients. However, although the correlations obtained by each researcher are based on the same basic principle, the calculated results are different. According to the law of mass action, we introduce two parameters, R_U and R_H. Using the empirical formula provided by us, we can calculate the R_U and R_H directly from the equilibrium concentrations of uranyl nitrate and nitric nitrate in water phase, and then calculate through R_U and R_H Balance Concentration of Nitric Uranyl and Nitric Acid in Organic. The results calculated by the formula and the experimental value of the deviation were 8.9% and 11.3%. The calculation formula proposed in this paper has been verified by more than 200 sets of data published by foreign magazines, which is in line with the situation.