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在278.15—298.15K 和离子强度为0.1—2.0mol/kg 范围内,在较高的浓度和酸度的萃取体系{TI_2SO_4+Na_2SO_4+D_2EHMTPA+n-C_8H_(18)+水}中,测定了萃取反应:TI_(aq)~++H_2A_(2(org))(TIHA_(2(org))+H_((aq))~+的 TI~+在平衡水相的浓度,根据 Pitzer 电解质溶液理论,估算了平衡水相的有效离子强度,用外推法和多项式拟合法确定了萃取反应的热力学平衡常数,计算并讨论了这个萃取反应的其它热力学量.
In the range of 278.15-298.15K and ionic strength of 0.1-2.0mol / kg, the extraction reaction was determined in the higher concentration and acidity extraction system {TI_2SO_4 + Na_2SO_4 + D_2EHMTPA + n-C_8H_ (18) + water) : TI ~ (aq) ~ + + H_2A_ (2) or () () The effective ionic strength of the equilibrium aqueous phase was estimated. The thermodynamic equilibrium constants of the extraction reaction were determined by extrapolation and polynomial fitting, and other thermodynamic quantities of the extraction reaction were calculated and discussed.