422 
Lincoln—Electrical Conductivity, 
BENZONITRILE. 
The C. P. sample of this solvent employed was from Tromms- 
dorff, and the specific conductivity was 1.9 X 10 -6 . 
Table XXIY. 
Solvent: benzonitrile. 
Silver Nitrate, Silver Nitrate, 
AgNO s . 
(v = 2.09 at 25° C.) 
V 
u 
t 
M 
2.09 
3.37 
8 
0 
Q 
5.55 (?) 
9.43 
5.18 
50 
6.75 
16.33 
6.37 
56 
7.05 
24.06 
7.66 
65 
7.59 
44.62 
10.12 
77 
8.11 
58.98 
11.19 
87 
8.75 
83.92 
13.41 
95 
9.26 
151.96 
16.38 
105 
9.65 
301.21 
18.20 
114 
10.09 
803.24 
21.64 
125 
10.69 
135 
11.20 
150 
11.70 
PYRIDINE. 
The sample of pyridine from Konig was fractionated, and the' 
portion distilling over between 106° and 117° was treated with 
fused caustic potash from which it was distilled. The distillate 
was again treated with caustic potash, over which it stood for 
several days and was then distilled. The distillate was redis¬ 
tilled and the portion coming over between 113° and 114° at 
742 mm. pressure was employed in some of the following deter¬ 
minations. The specific conductivity was 7.6 X 10~ 7 . For other 
determinations a C. P. sample of the solvent from Kahlbaum 
was employed and its specific conductivity was about 7.5 X 10~ 7 ,. 
