Study Of H+/ Mg2+ and H + / Ca2+ Ion Exchange Reaction Systems using Cation Exchange Resin Amberlite IR-120

P.U. Singare; R. S. Lokhande; M.R. Dhatrak; M.D. Karad

Article | Open Access

Study Of H+/ Mg2+ and H + / Ca2+ Ion Exchange Reaction Systems using Cation Exchange Resin Amberlite IR-120

P.U. Singare¹*, R. S. Lokhande² and M.R. Dhatrak³ and M.D. Karad³

¹Department of Chemistry, Bhavan’s College, Andheri, Mumbai 58 (India).

²Department of Chemistry, University of Mumbai, Vidyanagari, Santacruz, Mumbai - 98 (India).

³Department of Chemistry, N.G.Acharya and D.K.Marathe College, Chembur, Mumbai - 71 (India).

Download this article as:

ABSTRACT:

The study on thermodynamics of ion exchange equilibrium for uni-bivalent H+ / Mg2+ and H + / Ca2+ reaction systems was carried out using ion exchange resin Amberlite IR-120.The equilibrium constant K was calculated by taking into account the activity coefficient of ions both in solution as well as in the resin phase. The K values calculated for H+/Mg2+ and H+/Ca2+reaction systems were observed to increase with rise in temperature, indicating the endothermic exchange reactions having enthalpy values of 38.8 and 20.6 kJ /mol respectively.

KEYWORDS:

Ion exchange equilibrium; Equilibrium constant; Enthalpy; Endothermic reactions; Amberlite IR-120