Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/44544
Title: Effect of third component on separation behavior of water+t-butanol+Na2SO3/Na2SO4 system at 298±2 K
Authors: Jadhav, Vidhya V
Kolekar, Sanjay S
Kumbhar, Rajendra R
Tamhankar, Bhaskar V
Sabale, Sandip R
Keywords: Solution chemistry;Phase diagrams;Butanol;Water;Sulphite;Sulphate;Na2SO3;Na2SO4;Salting-out
Issue Date: Jun-2018
Publisher: NISCAIR-CSIR, India
Abstract: The liquid-liquid and liquid-liquid-solid equilibria for the ternary t-butanol-water-Na2SO3/Na2SO4 system is reported at ambient pressure and at 298±2 K. The solubility data of solutions of Na2SO3/Na2SO4 in water, t-butanol and solutions of varying compositions of t-butanol in water are reported. The phase diagrams for the studied systems are developed and salting-out effect of salt anion has been described. The structural properties of aqueous t-butanol solutions and the salting-out effect of SO32- and SO42- ions to cause phase separation have been explained. The salting-out ability of Na2SO3 is higher than that of Na2SO4 since the Gibbs free energy of hydration (ΔGhyd) of SO42- (−1080 kJ mol-1) is lower than that of SO32- (−1295 kJ mol-1) ion.
Page(s): 791-794
URI: http://nopr.niscair.res.in/handle/123456789/44544
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.57A(06) [June 2018]

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