Viscosimetric behaviour of n-alkanols with triethylene glycol monomethyl ether at different temperatures
作者： Silvia Aznarez , M.M. Elsa F. de Ruiz Holgado , Eleuterio L. Arancibia
DOI: 10.1016/J.MOLLIQ.2007.12.001
关键词: Triethylene glycol 、 Enthalpy 、 Standard molar entropy 、 Atmospheric pressure 、 Chemistry 、 Mole fraction 、 Transition state theory 、 Monomethyl ether 、 Viscosity 、 Thermodynamics
摘要: Abstract The thermodynamic functions of activation for viscous flow have been evaluated from the dynamic viscosity values binary mixtures considering Eyring's transition state theory. Kinematic viscosities and densities containing triethylene glycol monomethyl ether + (2-propanol or 2-butanol 2-pentanol) over whole mole fraction range ether, at four different temperatures atmospheric pressure were determined. Viscosity deviations excess Gibbs energies calculated. All are negative, all temperatures. molar enthalpy entropy obtained. These with concentration ether show a minimum. similar behaviour to that hydrocarbon–alkanol mixtures. Grunberg–Nissan Katti–Chaudrhi parameters calculated data analyzed on basis their treatment.
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