摘要
本文主要报道了30℃ Na_2CO_3—Na_2SO_4—NaCl—H_2O 四元体系及 Na_2CO_3—Na_2SO_4—H_2O,Na_2CO_3—NaCl—H_2O,Na_2SO_4—NaCl—H_2O 三个三元水盐体系的溶解度的测定结果,绘制了三元、四元体系相图,对各体系相图的构成进行了分析讨论。本文涉及的三元、四元体系对天然碱矿合理利用及成矿规律具有理论指导意义。
This thesis makes a report on the measurement of solubilites at 30℃ of the quaternary system Na_2CO_3—Na_2SO_4—NaCl—H_2O and those of the three ternary systems Na_2CO_3——Na_2SO_4—H_2O,Na_2CO_3—NaCl—H_2O and Na_2SO_4—NaCl—H_2O.Both ternary and quaternary phase diagrams are drawn.The structure of each phase diagram is analysed and discassed.The ternary and quaternary systems,which are dealt with in this paper,may serve as a theoretical guldance to the reasonable application of natural alkali and the derivation of the law of deposit formation.
关键词
天然碱
溶解度
溶液
水盐体系
solubility
phase diagram
natural alkali
water
system
