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Title: Excess volume and viscosity of ethoxy ethanol with n-butylamine, sec-butylamine, tert-butylamine, n-hexylamine, n-octylamine and cyclohexylamine
Authors: Subha, M C S
Swamy, G Narayana
Bai, M Eswari
Rao, K S V Krishna
Issue Date: Sep-2004
Publisher: NISCAIR-CSIR, India
IPC Code: Int C17. G01N 9/04; G01 N 11 /02
Abstract: Densities and viscosities of ethoxy ethanol (EEL) with n- butylamine (N BA), sec-butylamine (SBA), tert-butylamine(TBA), n -hexylamine (NHA), n -octylamine (NOA) and cyclohexylamine (CHA) have been measured at 308.15 K. From the experimental data the excess volume (VE), deviation in viscosity (ηE) and the excess molar Gibb's free energy of the activation of viscous flow (G*E) have been computed and presented as function of composition. The parameter d1 of the Grunberg and Nissan has been calculated. The observed variations of the properties for the above mixtures conclude that the interactions between - unlike molecules predominate over the dissociation effects in the individual components. It is also evident that the presence of strong interactions between unlike molecules is predominant and characterized by the negative VE and positive ηE, G*Eand d1 values. The excess volume, deviation in viscosity and excess molar Gibb's free energy of the activation of viscous flow have been fitted to Redlich-Kister equation to derive the coefficients and standard deviations.
Page(s): 1876-1881
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.43A(09) [September 2004]

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