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Title: Viscosity measurements of some 1:1 electrolytes in acetic acid+ water mixtures at 25°C
Authors: Jauhar, S P
Gupta, C M
Kapila, V P
Issue Date: Feb-2001
Publisher: NISCAIR-CSIR, India
Abstract: The relative viscosities of solutions of some alkali metal acetates and tetraalkyl ammonium salts have been measured in the concentration range 5 -700 × 10-4 mol dm-3 in acetic acid + water mixtures containing 20, 40, 60, 80, 90, 95 and 100 wt % acetic acid at 25°C. The viscosity data have been analyzed using Jones Dole equation. The viscosity B-coefFicient, an ion-solvent interaction parameter, has been found to be positive for all the electrolytes in all the systems. The ionic viscosity B± coefficients have been calculated by taking Bu4NBPh4 as reference electrolyte. The viscosity B-coefficient for all the alkali metal ions and tetraalkyl ammonium ions are found to increase upto 90 wt % acetic acid and 80 wt % acetic acid respectively indicating increase in extent of solvation and enhancement in structure. Li+ ion shows anomalous behavior while Br- ion shows structure breaking effect in the water rich region of the solvent mixture.
Page(s): 188-190
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.40A(02) [February 2001]

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