Abstract
A new method was studied to represent the three dimensional field of NaCl crystallization on the Ordinary tetrahedron coordinate in the quinary system on a simple triangle coordinate. The spacial diagram on the tetrahedron was projected on the base (KCl-MgCl2-CaCl2) by using both the graphicalmethod of Schreinemakers and, at the same time, that of Janecke.
The diagram thusprepared was composed of two figures, representing any arbitrary composition, within the field by two points; by one point the g/100g solution composition is represented and by the other the g/100g (KCl+MgCl2+CaCl2) composition. One can, also, find out the composition of any points in a rather simple way.
As an example of practical application of the graphical representation, the concentration process of ion exchange membrane brine produced in salt manufacturing factory in this cOuntry was investigated by means of the diagram of the quinary system at 25°C.