NATURE OF SOLUTION. 607 
The curve of solubility is almost identical with that of potassium chloride 
solution. 
NaCl . 
s p Na,8,0, a 
— 3 763'2 10°3 0°9321 
ts 14:0 1:2669 
2G) 17 es 15656 
3:0 20°5 1-837 
5:5 21°5 1:9455 
6:7 22°6 2°0452 
9:2 24:3 2°1990 
10:0 21°9 1:9818 
15:2 16°1 1:4570 
21:0 12:9 11674 
25°5 10°3 0:9321 
29°5 9-4 0°8507 
1 ec. Na,S,0,=0°010337 gm. iodine. 
Barium Chloride.—On account of its sparing solubility it was necessary to 
make the solution of this salt only half as strong as the preceding. Its curve 
therefore appears above the curves for potassium and sodium chlorides. 
Chlorine hydrate formed readily below 10° and decomposed rapidly between 
8° and 10°. 
BaCl, . 
ie p Na,S,0, a 
207 766 ay 11651 
30 15:0 1:3981 
Blo 15°6 1:4540 
4:2 16°95 1:5799 
UL ager 1:6497 
61 19°4 1:8082 
T2 26°5 1:9107 
9:1 21:3 1:9853 
10°9 20°3 1°8921 
12:0 19:0 LTS 
13°5 16°9 1:5238 
17:0 16:0 1:4426 
21:0 Pay 1:3254 
26:5 12:1 1:0910 
34:0 9°5 0°8566 
Under Strontium Chloride will be found a comparative experiment with that 
salt, the solution being diluted to half strength. The curve so obtained lies 
above that for barium chloride. 
