144 
CHEMISTRY: WASHBURN AND MILLARD 
of equivalents of the anion transferred per faraday were similarly 0.506, 
0.511, and 0.510. 
The experimental data are presented in Table 1. The data given for 
the middle portion are also those for the original solution. 
TABLE 1 
First Experiment 
ANODE 
ANODE 
MIDDLE 
CATHODE 
CATHODE 
PORTION 
MIDDLE 
PORTION 
MIDDLE 
PORTION 
Angle of rotation 
48.671 
48.228 
48.131 
48.116 
47.452 
1.1105 
1.1357 
1.1357 
1.1357 
1.1642 
3.0320 
2.9319 
2.9310 
2.8197 
Per cent CsCl 
12.077 
14.772 
14.770 
14.750 
17.713 
Silver in coulometers 
5.5048 
5.5044 
Weight of electrode portion 
132.58 
119.77 
0.30 
0.36 
4.243 
4.198 
Faradays of electricity 
0.05103 
0.05102 
Cation transference-number 
0.494 
0.489 
Mols H2O transferred per mol CsCl. . . . 
0.64 
0.80 
0.33 
(Mean 
0.36) 
0.39 
Second Experiment 
55.865 
55.137 
55.137 
55.127 
54.421 
Density at 25° 
1.1152 
1.1409 
1.1409 
1.1409 
1.1689 
3.4653 
3.3428 
3.2208 
Per cent CsCl 
12.383 
15.152 
15.160 
15.161 
18.063 
5.4787 
5.4787 
* 
121.12 
0.25 
Grams CsCl transferred 
4.190 
Faradays of electricity 
0.05078 
0.05078 
Cation-transference-number 
0.490 
Mols H2O transferred per mol CsCl. . . . 
0.56 
Mols H2O transferred per faraday 
0.28 
* The anode residues were scorched in drying in this experiment, thus rendering uncer- 
tain the weight of the electrode portion. 
The fact estabhshed by these experiments, independent of any hy- 
pothesis, is that the electrolysis of a solution of cesium chloride contain- 
ing also rafiinose at a low concentration is attended by a decrease in 
the ratio of the quantity of water to that of raflSnose at the anode and a 
corresponding increase at the cathode. If now the probable assumption 
be made that the raffinose is not transferred by the current, the further 
conclusion is reached that there is a net transfer of water to the cathode, 
indicating that the cesium-ion is hydrated, and hydrated to a greater 
