ELECTEICAL CONDUCTIVITY OF AIR AND SALT VAPOURS. 
43!) 
Galvanometer 
deflection. 
Electro-chemical 
(C.) 
ec|uivalent. 
1=5-2 X 10-« 
Salt. 
(E.) 
ampere. 
EC. 
CsCl . . 
. , 168 
31 
5-2 X 10'^ 
CSoCOg . 
. . 163 
31 
5T „ 
Rbl . . 
. . 212 
24 
5-1 „ 
BbCl . . 
. . 121 
43 
5-2 „ 
BlyCOg . 
. . 115 
47 
5 4 ,, 
KI . . 
166 
32 
a ‘3 ,, 
KBr . . 
. . 119 
41 
4-9 „ 
KF . . 
. . 58 
85 
4-9 „ 
KoCOo . 
. . 69 
77 
5-3 „ 
Nal . . 
. . 150 
35 
5-3 „ 
NaBr. . 
. . 103 
47 
4-9 „ 
NaCl . . 
. . 59 
91 
5-3 „ 
Na,,C 03 . 
. . 53 
91 
00 
Lil . . 
. . 134 
39 
5-2 „ 
LiBr . . 
. . 87 
60 
5-2 „ 
LiCd . . 
. . 43 
120 
5-2 „ 
LhCOo . 
*. o 
. . 37 
144 
5-3 „ 
Mean 
value 
5-14 X 103 
It is clear from the above results that the saturation current is inversely propor¬ 
tional to the electro-chemical equivalent of the salt. The mean value of the product 
EC, 5:14 X 10^, is also very approximately one-tenth of the value 5'1 X 10^ obtained 
with solutions containing 10 grammes in a litre, which shows that the saturation 
current is proportional to the concentration of the solution sprayed. 
The amount of salt passing through the tube was determined again by a modifica¬ 
tion of the method originally employed by Auehenius to determine the amount of 
salt supplied by a sprayer to a fiame. 
A solution containing 40 grammes of lithium chloride j^er litre w^as sprayed and 
the air and spray mixed with coal-gas and the mixture then burnt from a brass tube, 
so as to form a Bunsen flame. 
A Bunsen burner was adjusted so as to give another sensibly equal and similar 
flame, which was placed close beside the first. A w^eighed bead of fused LiCl was 
held in the axis of the second flame on a platinum wire loop, and its height in the 
flame adjusted till the tips of the two flames a})peared ecpially brightly coloured. 
Under these circumstances the rate of supply of salt to the two flames must be 
nearly the same, so that the lo.ss of weight of the bead of LiCl measures the rate at 
which LiCl is supplied by the sprayer. 
