and volume of organic ions in aqueous solutions. 7 
Compound used for 
ionic volume 
Molecular weight of 
compound, M 
Density, 
(sms. per c.c.) 
/ temp. deg. C. 
Molecular volume, 
m? 
Ionic volume j 
Cube root of 
ionic volume 
Ionic velocity, cm. /sec., 
per volt/cm. at 25° C. 
* 10 4 
Ionic velocity x cube 
root of ionic volume 
x 10 4 
Triethylamine 
101-1 
•728/20 
138-9 
Propylamine 
591 
•714/25 
82-8 
208-8 
5-93 
3-24 
19-2 
At. vol. of N = 2-3 
tsobutylamine 
73-1 
•735/15 
99-5 
Triethylamine 
10M 
•728/20 
138-9 
225-5 
6-09 
3-20 
19-5 
At. vol. of N = 2-3 
Isoamylamine 
87-1 
•749/18 
116-2 
248-7 
6-29 
2-89 
18-2 
Diisoamylamine 
157-2 
•770/25 cor. 
204-2 
209-5 
5-94 
2-66 
15-8 
i-m-Xylidine 
121-1 
•918/25 
131-8 
137-1 
5-16 
(3-30) 
(17-0) 
Dimethylaniline 
121-1 
•957/20 
126-5 
131-8 
5-09 
(3-72) 
(18-9) 
if/ Cumidine 
135-1 
•963/ 
140-3 
145-6 
5-26 
(3-21) 
(16-9) 
Aniline 
93-1 
1-018/25 
91-5 
160-4 
5-43 
3-77 
20-5 
Methylaniline 
107-1 
•976/15 
109-7 
157-4 
5-40 
3-77 
20-4 
Dimethylaniline 
121-1 
•957/20 
126-6 
153-1 
5-35 
3-77 
20-2 
Diethylaniline 
149-1 
•936/18 
159-3 
164-6 
5-48 
3-62 
19-8 
Propylaniline 
135-1 
•949/18 
142-3 
168-8 
5-53 
3-62 
20-0 
1-Naphthylamine — 
147-1 
1-062/16 
138-6 
5 : 6 : 7 : 8 tetrahydride 
Hexahy drol >enzene . . . 
84-1 
•76/0 
110-7 
191-5 
5-76 
3-37 
19-4 
Benzene 
78-0 
•900/0 
86-6 
.\ hydro H = 4 
2-Naphthylamine — 
147-1 
1 031/16 
142-7 
195-6 
5-81 
3-34 
19-4 
1 : 2 : 3 : 4 tetrahydride 
and hydro 11 = 4 
Piperidine 
85-1 
•859/25 
99-0 
104-4 
4-71 
3-94 
18-6 
Pyridine 
79-0 
•985/15 
j 80-2 
106-7 
4-74 
4-87 
23 1 
