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Kinematic viscosities of ternary mixtures containing ethane-1,2-diol, 2-methoxyethanol and water from -10°C to 80°C

Cocchi, Marina and Marchetti, Andrea and Sanna, Gavino and Tassi, Lorenzo and Ulrici, Alessandro and Vaccari, Giulia (1999) Kinematic viscosities of ternary mixtures containing ethane-1,2-diol, 2-methoxyethanol and water from -10°C to 80°C. Fluid Phase Equilibria, Vol. 157 (2), p. 317-342. ISSN 0378-3812. Article.

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DOI: 10.1016/S0378-3812(99)00006-0

Abstract

Kinematic viscosities (ν) of the ternary ethane-1,2-diol (1)+2-methoxyethanol (2)+water (3) solvent system have been measured for 36 ternary mixtures covering the whole miscibility range expressed by the condition 0 <X1,X2,X3<1, at 19 temperatures in the range -10≤t (°C)≤80. The measured values have been used to test some empirical equations of the type ν=ν(t) and ν=ν(Xi), in order to provide for useful interpolation procedures to obtain calculated values in correspondence to the experimental data gaps. From the experimental data, the excess kinematic viscosities (νE) have been calculated. Sign and magnitude of these quantities have been discussed in terms of type and nature of specific intermolecular interactions. Furthermore, derived quantities such as thermodynamic parameters of the viscous flow (ΔG*, ΔH* and ΔS*), have been analysed on the basis of the Eyring's model. All the investigated excess mixing properties indicate the probable absence of stable three-component adducts in this ternary solvent system.

Item Type:Article
ID Code:3678
Status:Published
Refereed:Yes
Uncontrolled Keywords:Data, kinematic viscosity, ternary mixtures, ethane-1,2-diol, 2-methoxyethanol, water
Subjects:Area 03 - Scienze chimiche > CHIM/01 Chimica analitica
Divisions:001 Università di Sassari > 01 Dipartimenti > Chimica
Publisher:Elsevier
ISSN:0378-3812
Copyright Holders:© 2000 Elsevier Science
Deposited On:02 Apr 2010 16:22

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