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Title: Effect of temperature on the viscosities of some divalent transition metal sulphates and magnesium sulphate in water and water+ethylene glycol mixtures
Authors: Parmar, M L
Thakur, R C
Issue Date: Jul-2006
Publisher: NISCAIR-CSIR, India
Abstract: Relative viscosities for the solutions of some divalent transition metal sulphates, viz. manganese sulphate, cobalt sulphate, nickel sulphate, copper sulphate and zinc sulphate; and magnesium sulphate at different concentrations have been determined in water and in water + ethylene glycol (EG) [5,10,15 , 20 and 2S% by weight of EG] mixtures at 303.15 K, and in water and in 5% (w/w) EG + water at five different temperatures. The data have been analysed using the Jones-Dole equation and the obtained parameters have been interpreted in terms of ion-ion and ion-solvent interactions. The activation parameters of viscous flow have been obtained which depicts the mechanism of viscous now. The transition metal sulphates and magnesium sulphate act as structure makers/promoters in water and in EG + water mi xtures.
Page(s): 1631-1637
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections: IJC-A Vol.45A(07) [July 2006]

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