论文部分内容阅读
1.用等温法测定在30℃时K_2CO_3-K_2SO_4-H_2O,K_2B_4O_7-K_2CO_3-H_2O和K_2B_4O_7-K_2SO_4-H_2O三个三元体系的溶解度等温线.在上述体系中存在K_2CO_3·3/2H_2O,K_2SO_4和K_2B_4O_7· 4H_2O固相. 2.研究在30℃时K_2CO_3-K_2SO_4-K_2B_4O_7-H_2O四元体系的溶解度等温线.相图中只有K_2SO_4和K_2B_4O_7·4H_2O两个有效相区.
Isothermal determination of the solubility of K_2CO_3-K_2SO_4-H_2O, K_2B_4O_7-K_2CO_3-H_2O and K_2B_4O_7-K_2SO_4-H_2O ternary system at 30 ℃ by isothermal method.The K_2CO_3 · 3H_2O_2, K_2SO_4 and K_2SO_4 K_2B_4O_7 · 4H_2O solid phase.2 The solubility isotherm of K_2CO_3-K_2SO_4-K_2B_4O_7-H_2O quaternary system at 30 ℃ was studied.The phase diagram only contains two effective phase regions K_2SO_4 and K_2B_4O_7 · 4H_2O.