Interactions in the Quaternary Systems H2O−Y(NO3)3−La(NO3)3−Pr(NO3)3, H2O−Y(NO3)3−La(NO3)3−Nd(NO3)3 and H2O−Y(NO3)3−Pr(NO3)3−Nd(NO3)3 to Very High Concentrations

被引：0

作者：

Mei He

Zhi-Chang Wang

机构：

[1] Northeastern University,Department of Chemistry

[2] Institute of Chemical Technology,undefined

来源：

Journal of Solution Chemistry | 2006年 / 35卷

关键词：

Isopiestic measurements; Modified Pitzer ion–interaction model extending to ; Zdanovskii–Stokes–Robinson model; Partial ideal solution model; Aqueous rare earth nitrates; Quaternary systems;

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学科分类号：

摘要：

Isopiestic measurements have been carried out for the quaternary systems H2O−Y(NO3)3−La(NO3)3−Pr(NO3)3, H2O−Y(NO3)3−La(NO3)3−Nd(NO3)3 and H2O−Y(NO3)3−Pr(NO3)3−Nd(NO3)3 at 298.15 K to near saturation. The measurements can be represented by a modified Pitzer ion–interaction model extending to C(3) within the experimental uncertainty over the full concentration range. In addition, these systems obey the Zdanovskii-Stokes-Robinson model or partial ideal solution model within isopiestic accuracy, indicating zero solute-solute interchange energy, which is consistent with the nature of salts of the trivalent rare earth ions.

引用

页码：1607 / 1619

页数：12