A thermometric titration study of the interaction of Co2+ with metallochromic indicators

Mohamed Rozali Othman, J. O. Hill, R. J. Magee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A thermometric titrimetry study of the interaction in aqueous solution of Co2+ with xylenol orange, eriochrome black T and catechol violet at a specified pH, has revealed in each case a linear reaction heat/[Co2+] relationship, thereby suggesting the potential of metallochromic indicators for the determination of macro trace levels of cobalt in water. The relevant complexation enthalpies are rationalized in terms of a combination of ligand steric effect, cobalt-ligand bond energies and chelate effect.

Original languageEnglish
Pages (from-to)163-170
Number of pages8
JournalThermochimica Acta
Volume122
Issue number1
DOIs
Publication statusPublished - 1 Dec 1987
Externally publishedYes

Fingerprint

Cobalt
Titration
titration
cobalt
Ligands
ligands
Chemical bonds
Complexation
chelates
Macros
Enthalpy
enthalpy
interactions
aqueous solutions
heat
Water
water
energy
Hot Temperature
xylenol orange

ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

A thermometric titration study of the interaction of Co2+ with metallochromic indicators. / Othman, Mohamed Rozali; Hill, J. O.; Magee, R. J.

In: Thermochimica Acta, Vol. 122, No. 1, 01.12.1987, p. 163-170.

Research output: Contribution to journalArticle

Othman, Mohamed Rozali ; Hill, J. O. ; Magee, R. J. / A thermometric titration study of the interaction of Co2+ with metallochromic indicators. In: Thermochimica Acta. 1987 ; Vol. 122, No. 1. pp. 163-170.
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