Titrirnetric Determination of lron(III) with DCTA

Department of Chemistry, Panjab University, Chandigarh, India

Manuscript received 20 February 1979, revised 4 July 1979, accepted 19 November 1979

Iron(III) has been determined alone as well as in the presence of various ions by titrating with 1,2-diaminocyclohexanetetraacetic acid using alizarin red S and thio­glycollic acid as indicators at \(p\)H 1.75-3.25 and 6.85-7.50 respectively. The method has been extended to the determination of iron(III) in its mixture with lead(II) as well as in haemetite, lime stone and cement.