THE BEST SIDE OF METAL INDICATORS

To stop this issue of gradual modify in colour, a small quantity of 1:1 EDTA:Mg is commonly added on the titration flask (this doesn't have an effect on the stoichiometry of thetitration response because the portions of EDTA and Mg are equimolar) becauseMgIn complex is sufficiently steady that it's going to not dissociate appreciably priorto attain