五元体系Li~+,K~+//Cl~-,B_4O_7~(2-),CO_3~(2-)-H_2O在298K时相平衡的实验研究

采用等温溶解平衡法研究了五元体系 L i+ ,K+ / / Cl- ,B4O2 -7,CO2 -3- H2 O在 2 98K时相关系和平衡液相物化性质。对各组分的溶解度以及密度、折光率、粘度、电导率和 p H值进行了测定 ,并绘制了相关相图 ,得到 5个结晶相区和 3个共饱点。该体系没有固溶体和复盐生成 ,为简单共饱和型体系。

AN EXPERIMENTAL STUDY ON PHASE EQUILIBRIUM OF Li~+,K~+//Cl~-,B_4O_7~(2-),CO_3~(2-)-H_2O SYSTEM AT 298 K

In this work,the phase equilibrium of the system of Li +,K +//Cl -,B 4O 2- 7,CO 2- 3 H 2O was studied by the isothermal equilibrium method at 298 K, and the solubility, density, refractive indexes, viscosity, conductivity and pH values of the equilibrium solution were also determined. From the phase diagram plotted, the authors was found that there were 5 crystallization regions and 3 invariant points in this equilibrium system. The system is a simple eutectic type and no complex salt or solid solution was found in it.