665 
potential of the silver is least positive for d= 0; with increasing inten- 
sity of the current the metal becomes at first only little more positive, 
till at a given current density the line suddenly bends, so that the 
potential becomes much more positive, and eventually on further 
increase of the current density it rises again more slowly. The same 
phenomenon is presented by the line for C,= 10 3, but for smaller 
current density and also the line for C, == 10 * faintly shows this 
course. With smaller chlorine ion concentration the course of the 
current potential line approaches the normal course more. If the 
current potential line lies on the left side of the vertical line AB, for 
which Co, = 103 == WL, the current is chiefly used for deposition 
of AgCl on the anode, the part lying on the righthand side of the 
line AB denotes current densities, at which the silver chloride is 
deposited in the liquid. 
This appears in the following way: 
Equations (86) and (37) give the current density for dlepositian 
of AgCl on the anode and in the liquid. 
Th ti AgCl on the anode de Vas 
e ‘oportio = == Ee 
densan AgCl in the liquid d, Deer 
If we call 8 the fraction of the total current density used for 
silver chloride formation on the anode, then 
di = UB ven dS a= Be 
and 
Dea 
EEL Or, aS Cjat‚a= L. 
1-8 Deca 
LD (=p) 
ee a jot ae 
and 
LD, B 
EE, kt LER 
By substitution of these values of cia ae C2a in (38), we get: 
de ee Gee saved PA DE Dn | / ip, te (42) 
where C, C, = L. 
In figure 3 @ has been drawn as function of the current density. 
From this appears that for small current densities 3 is almost con- 
stant. Here practically all the AgCl is deposited on the anode. If 
the current density is increased, there comes a value of the current 
density where 8 decreases rapidly, and for still greater current 
