Application of extended scaling law to the surface tension of fluids of wide range of molecular shapes

Ghatee, Mohammad Hadi; Soorghali, Ali

doi:10.1016/j.fluid.2006.09.009

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…The overall AAD of the predicted surface tension for 81 data points using the present model, Alavianmehr et al, QSPR, and CS-GC methods were found to be 0.29, 1.45, Table 7 The scaling constants to be used in Eq. (25)and AAD (%) of the calculated surface tension using the present model and those obtained by Alavianmehr et 7.73, and 4.14%, respectively. As we can see from Table 7, the present model is the most accurate among other abovementioned methods.…”

Section: Extension To Mixturessupporting

confidence: 62%

“…Surface tension of a liquid is related to the intermolecular interaction potential energy and the liquid interfacial microstructure; it decreases linearly with temperature in the range of freezing to the boiling temperature and vanishes non-linearly close to the critical point [23][24][25][26]. Like viscosity, surface tension can be measured with high accuracy.…”

Section: Introductionmentioning

confidence: 99%

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Thermophysical properties of ionic liquids and their mixtures from a new equation of state

Akbari

Alavianmehr

Ardakani

et al. 2017

Ionics

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In our previous work, a perturbed hard-trimersphere equation of state (PHTS EOS) was developed for modeling the phase equilibria of pure ionic liquids (ILs) (M.M. Alavianmehr et al., Ionics 22 (2016) 2447-2459. In this work, we have successfully extended the model to the mixtures of IL + IL and IL + solvent. Two temperaturedependent parameters appearing in the EOS are correlated with two microscopic scaling constants σ, the effective hardsphere diameter, and ε, the non-bonded interaction energy. The overall average absolute deviation (AAD) of the estimated densities from the literature data using the proposed model with and without non-additivity parameter (λ ij ) was found to be 0.44 and 0.79%, respectively. A modified Enskog equation and rough hard-sphere (RHS) theory are combined with our proposed equation of state to calculate the viscosity coefficient of ionic liquids and their mixtures. Finally, from the results obtained, a linear relation between logarithm of surface tension and viscosity property of ionic liquid was developed.

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Section: Extension To Mixturessupporting

confidence: 62%