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Title: Apparent molar compressibilities of transfer of electrolytes from water to aqueous tert-butanol solutions
Authors: Patil, K J
Mehta, G R
Salpekar, A
Issue Date: Aug-1990
Publisher: NISCAIR-CSIR, India
Abstract: The densities and sound velocities of the solutions of NaCl, Et4NBr and Bu4NBr in tert-butanol water mixtures (0 to 7 mol%) have been determined at 25°C. The apparent molar compressibilities of the salts-at infinite dilution (ϕ) have been computed from the concentration variation of ϕk for these mixtures. The transfer compressibilities of the electrolytes (ϕ)trans from water to aqueous tert- butanol solutions show a non-linear behaviour as a function of co-solvent concentration. The transfer function has been interpreted in terms of pair and higher order interactions between the electrolytes and the co-solvent. In the water-rich region, the observed large negative (ϕ)trans value in the case of Bu4NBr implies the importance of water structural effects and hydrophobic interaction in these solutions.
Page(s): 784-787
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.29A(08) [August 1990]

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