Abstract
The equilibrium distribution of selenium in hydrochloric acid medium and with the chloride salt of tri‐iso‐octylamine (TIOA) in xylene was studied. Experimental data were analyzed graphically and numerically to determine the stoichiometry of the extraction species. It was found that the extraction reaction is endothermic (ΔH = +17.060 KJ/mol). Selenium was extracted by the reaction:
Acknowledgments
The authors thank Henkel Corporation, USA, for sending us the reagent TIOA and also thank the Department of Metallurgical Engineering, Jadavpur University, for laboratory facilities. Authors are thankful to Ms. Kasturi Mitra for her contribution.