Abstract
In their previous paper (This Journal 23, 113 (1969)), the authors reported the results of their determination of isotherms of the ternary systems MgCl2-CaCl2-H2O, NaCl-MgCl2-H2O and the quaternary system NaCl-MgCl2-CaCl2-H2O at 50°C.
In the present paper, the authors studied the equilibrium of the ternary system KCl-MgCl2-H2O, the quaternary systems NaCl-KCl-MgCl2-H2O and KCl-MgCl2-CaCl2-H2O. This study was made for the purpose of completing the equilibrium diagram of the five component system NaCl-KCl-MgCl2-CaCl2-H2O, which might be useful for the ca1culation of isothermal evaporation of natural gas brine, ion exchange membrane brine, etc. The results obtained were as follows:
1. Isotherms of the ternary system KCl-MgCl2-H2O, the quaternary systems NaCl-MgCl2-CaCl2-H2O and KCl-MgCl2-H2O were determined at 50°C.
2. The isotherms thus obtained showed a fairly good agreement with those of several studies already reported.
