ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Calculation of the titration curve of Fe²⁺ with dichromate: a new and easy approach

Elisabetta Mazzotta, Paolo Pastore, and Cosimino Malitesta

Analytical Chemistry Lab, Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy

E-mail: cosimino.malitesta@unisalento.it

Received: 16 February 2026  Accepted: 19 March 2026

Abstract:

An easy and rigorous method for calculating the titration curve of Fe²⁺ with dichromate is described. It overcomes the limit of previous approaches for this titration. In particular, it is based on the de Levie’s approach, calculating volume of titrant from the potential of the system, but this requires, at difference of the original approach, which fails in this case, to solve a second degree polynomial. Potential educational and practical applications are suggested.

Keywords: Theoretical titration curve; Fe2+ and dichromate; de Levie's approach

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-026-04830-5

Chemical Papers 80 (7) 7471–7476 (2026)