Use of chromium ferrocyanide membrane electrode in the potentiometric titration of ferrocyanide with metal ions.
Membranes based on the inorganic ion-exchanger chromium ferrocyanide have been prepared, which exhibit linear response to ferrocyanide over the concentration range 10(-1)-10(-4)M. Although the electrode is not very specific for ferrocyanide, it can be used for potentiometric titration of metal ions with ferrocyanide ion or vice versa. Hg(2+), Th(6+), UO(2+)(2), Pb(2+), Cu(2+) and Zn(2+) have been determined in this way.
Jain
A K
AK
Chemistry Department, Roorkee University, Roorkee, India.
Srivastava
S K
SK
Agrawal
S
S
Singh
R P
RP