1896 - 97 .] On the so-called 11 Hypoiodite of Magnesium ” 243 
chemically transformed at the expense of both the iodine absorbed 
and the iodine remaining in the solution. 
One of the simplest means of determining the nature of an 
equilibrium is to ascertain the effect on it of mere dilution of the 
reacting substances, their amounts remaining unchanged. We 
accordingly performed several sets of experiments, in which the 
quantity of water alone was varied for each set. In the tables 
exhibiting our results we have added a column which gives the 
final concentration of the iodine solution, the concentration of the 
strongest iodine solution after the absorption being made equal to 
100 . 
Volume. 
Iodine taken 
Iodine 
remaining. 
Final 
concentration. 
I2 in lOMgO. 
Iodine 
transformed. 
First Series. 
60 c.c. 
16 
12*5 
100 
2'84 
0-92 
120 „ 
9 3 
11-56 
46 
2-98 
2-08 
200 „ 
,, 
11-56 
28 
2-96 
2-10 
0 
0 
CO 
> > 
10-92 
17 
3-27 
2-68 
400 „ 
> > 
10-56 
12 
3-04 
3-47 
Second Series, 
60 c.c. 
8 
4*47 
35 
2-60 
1-22 
120 „ 
9 9 
3-94 
15 
2-57 
2-01 
200 „ 
9 9 
3-04 
7-2 
2-50 
3-28 
300 ^ „ 
9 9 
3-14 
5-0 
2-47 
3-18 
Third Series. 
60 „ 
4 
1-36 
10-9 
1-96 
0-81 
120 „ 
9 9 
0-90 
3*6 
1-92 
1-44 
200 „ 
9 9 
0-56 
1-3 
1-90 
1-89 
300 „ 
99 
0-42 
0-67 
1-70 
2-26 
It is very evident from these tables that increase in the dilution 
of the reacting substances greatly increases the amount of iodine 
chemically transformed. The effect of dilution on the amount of 
iodine absorbed by the magnesia is not so marked. In the first 
series there is an apparent increase, in the other series there is 
slight diminution. If the iodine in the magnesia is estimated 
