Complexometric determination of mercury(II) using Congo Red as indicator.
Congo Red is suggested as an indicator for the direct titration of mercury(II) ions with EDTA or with potassium thiocyanate. An interference study of a number of cations has been made. The titration with thiocyanate is more advantageous than that with EDTA.
Tandon
K N
KN
Department of Chemistry, University of Rajasthan, Jaipur, India.