470 
If we compare the figs 1 and 2 we notice that the equilibria in 
the two ternary systems CuCl,—BaCl,—Water and KCl— BaCl,-- 
Water, do not show appreciable differences at 40° and 60°, but that 
these are observed in the ternary system CuCl,—KCl—Water and 
in the quaternary system. 
At 40° (Fig. 1) the isotherm of the ternary system KCl 
CuCl,—H,0 consists of: 
ef, the saturation line of the KCl 
IY; 2) 9) 23 9 9? Di 22 
And: ga, A eerie en le IEEE, 
whereas this consists at 60°, (Fig. 2), of: 
(uu Ul, 
Fig. 2. 
ef, the saturation line of the KCl 
Te 5 3 16) dies 
gk, ” ’) »” ome op Di 
and ka, ,, a ss ee ene eo 
hed 
Whereas at 40° only 5 quaternary saturation curves occur, seven 
are found at 60°, namely. 
Curve 6/, the saturation curve of CuCl, .2H,O + BaCl, . 2H,O 
. 
fey ie F fe EKE AG: tO 
Ey eaves tes B » » KCI + Diaz 
OEE 5 py Bals 2H a Dio. 
ran 5 Die Daa 
AN ae MA rr » Di, + BaCl, . 2H,O 
5 hie i a >» Dya + CuCl, . 20,0. 
The saturation curve gh of fig. 1 (at 40°) is, therefore replaced 
in fig. 2 (at 60°) by the three saturation curves gh, hl and Ik. 
At 40° (fig. 1) we find only two, at 60° (fig. 2) however, three 
quaternary saturation points, namely : 
