Non- Ideality and Ion-Pairing in Saturated Aqueous Solution of Lithium Carbonate at 25°C

Subject Areas : Journal of Physical & Theoretical Chemistry

M. Aghaie ¹ (Not-mentioned)
B.Sh. Broojeni ² (Not-mentioned)

Received: 2015-05-03 Accepted : 2015-05-03 Published : 2007-02-01

Keywords: Solubility product, Ion-association, Ion-Pair, Activity coefficient, Non ideality,

Abstract :

Using Solvent Evaporating and Atomic Emission Spectrophotometric methods, the solubility of Li2CO3 in waterat 25°C was determined. Comparing the value of thermodynamic solubility product constant, Ksp(th),(Ksp(tn) = exp(—AG.ss/RT)) of the mentioned salt to the value which is obtained from the observed solubility,shnolL-1 , and activity coefficients, f+ and f, which are estimated upon the extended Debye- /Rickel law,IC:p =[Li12 [CO 3-2 ify_ , revealed a great difference. The difference has satisfactorily been explained using acombination of Debye-flackel law and Ion-Association Theory.

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Non- Ideality and Ion-Pairing in Saturated Aqueous Solution of Lithium Carbonate at 25°C