局部组成模型在K^+,Na^+//Cl^-,SO_4^(2-),NO_3^--H_2O体系中的应用(英文)  

The Application of the Local Composition Model for the System K^+,Na^+//Cl^-,SO_4^(2-),NO_3^--H_2O

作　　者：黄雪莉[1] 管民[1] 

机构地区：[1]新疆大学化学化工学院,新疆乌鲁木齐830046

出　　处：《新疆大学学报（自然科学版）》2003年第4期399-402,共4页Journal of Xinjiang University(Natural Science Edition)

摘　　要：首次将电解质溶液的局部组成模型用于新疆罗布泊硝酸钾矿所属体系K+,Na+//Cl-,SO42-,NO3-,H2O五元体系,利用前期研究所获得的盐的活度积、盐-盐作用参数,预测了该体系及其所包含的五个四元体系的溶解度,除五元体系稍有偏差外,其他体系均与文献值符合较好。The local composition model of electrolyte system has been first used to calculate the liquidsolid equilibrium of K\++,Na\++//Cl\+-,SO\-4\+\{2-\},NO\-3\+- -H\-2O system here, which is the system of potassium nitrate mineral of LoBuPo in Xinjiang, China. On the basis of study before, the solubilities of K\++,Na\++//Cl\+-,SO\+\+\{2-\},NO\-3\+- H\-2O system and its subsystems have been predicted, the results are in agreement with the experimental data except quinary system, several invariant points of which have slight differences from the data in literature.

关 键 词：局部组成模型 五元体系 K^+ NA^+ Cl^- SO4^2- NO3^- 硝酸钾 溶解度 电解质溶液 

分 类 号：O646.1[理学—物理化学]