On the viscosity Arrhenius temperature for methanol +<i>N,N</i>-dimethylformamide binary mixtures over the temperature range from 303.15 to 323.15 K

Trabelsi, Z.; Dallel, M.; Salhi, H.; Das, Debasmita; Alomair, Nuhad A.; Ouerfelli, N.

doi:10.1080/00319104.2014.947372

Cited by 14 publications

(11 citation statements)

References 41 publications

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“…For that, statistical tools are applied using data sets from the literature of liquid mixtures at different compositions and temperature ranges. [11][12][13][14][15][16][17][18][19][20][21] The validation of the proposed equation is important since it allows redefining the Arrhenius equation by using single parameter instead of two. The advantages and benefits of such scheme are obvious to the computational aspects in a myriad of disciplines in engineering and science.…”

Section: Introductionmentioning

confidence: 99%

Viscosity Arrhenius parameters correlation: extension from pure to binary fluid mixtures

Kacem

Ouerfelli²,

Herráez

2015

Physics and Chemistry of Liquids

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Knowledge of fluids' physicochemical properties is mandatory for the design and optimisation of industrial processes and products. A data quantity of most importance, in this regard, turns out to be the value of fluid viscosity. Many empirical and semi-empirical formulas have been proposed in the literature to describe the viscosity of pure liquids and binary liquid mixtures. Recently, an interesting equation is proposed for pure solvents correlating the two parameters in the viscosity Arrhenius-type equation, namely the activation energy (E a ) and the preexponential factor (A s ). This paper aims to extend the said correlation to binary liquid mixtures. To achieve this purpose, statistical methods are applied using data sets from the literature of some solvent binary mixtures at different compositions and temperatures. The validation of the extended proposed equation for binary liquid mixtures is important since it simplifies the estimation of viscous behaviour and the ensuing calculations.

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Section: Introductionmentioning

confidence: 99%

Viscosity Arrhenius parameters correlation: extension from pure to binary fluid mixtures

Kacem

Ouerfelli²,

Herráez

2015

Physics and Chemistry of Liquids

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“…Furthermore, the correlation curve of these two properties show linear behaviour for some other previously studied binary mixtures such as water with isobutyric acid (IBA), [10,11] 1,4-dioxane [9] and N,Ndimethylacetamide with 2-ethoxyethanol (EOE), [1] water, [12] formamide (FA), [13] N, N-dimethylformamide (DMF) [14] and methanol (Met), [15] and DMF with (Met). [16] The pre-exponential entropic factor (As) equivalent to the viscosity at infinite temperature (As = η ∞ ) is very closely related to the viscosity of the same system in vapour-phase at the normal boiling temperature and at the same pressure. We can add that for each mixture, even in the case of the existing of different domains with distinct behaviours, we note that all different branches exhibit approximately the same slope of their quasi-straight line for which we can write the following standardised empirical equation:…”

Section: Introductionmentioning

confidence: 99%

A novel approach to discuss the viscosity Arrhenius behaviour and to derive the partial molar properties in binary mixtures of N,N-dimethylacetamide with 2-methoxyethanol in the temperature interval (from 298.15 to 318.15) K

Messaâdi¹,

Salhi

Das

et al. 2015

Physics and Chemistry of Liquids

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Calculation of excess properties in N,N-dimethylacetamide + 2-methoxyethanol binary mixtures at (298.15, 308.15 and 318.15) K from experimental density, viscosity and sound velocity values were presented in previous work. Applications of these experimental values to test different correlation equations as well as their corresponding relative functions were also reported. Considering the quasi-equality between the Arrhenius activation energy Ea and the enthalpy of activation of viscous flow ΔH*, here we can define partial molar activation energy Ea 1 and Ea 2 for N,N-dimethylacetamide and 2-methoxyethanol, respectively, along with their individual contribution separately. Correlation between Arrhenius parameters reveals interesting Arrhenius temperature with a comparison to the vaporisation temperature in the liquid vapour equilibrium, and the limiting corresponding partial molar properties that can permit us to estimate the boiling points of the pure components.

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“…Case of pure components: For phenomenological discussion of the causal correlation, we have proposed an extra endogenous variable such as the viscosity Arrhenius temperature (T A ) where the reciprocal value is determined by the intercept to abscissa axis (1/T A ) or using the following equation: Table-2 summarizes the viscosity Arrhenius parameters of some solvents studied in previous works [21][22][23][24][25][26]35,39,41,[44][45][46][47][48][49][50] and Fig. 3 indicates mutual correlation between the parameters (Ea, ln As and TA) of Arrhenius.…”

Section: Temperature-dependence Of Liquid Shear Viscositymentioning

confidence: 99%

“…In addition, we can consider roughly the linear behaviour which is also noticed for some other studied binary liquid mixtures like water with 1,4-dioxane or isobutyric acid or DMA, etc. [2,6,[20][21][22]25,[44][45][46][47][48][49][50].…”

Section: Temperature-dependence Of Liquid Shear Viscositymentioning

confidence: 99%

“…Furthermore, the close dependence on composition, between the molar enthalpy of viscous flow (∆H*) and the viscosity activation energy (Ea) guided to considering that (Ea) is approximately a thermodynamic state function for which partial quantities have been determined to arise individual interaction's contributions of each pure solvent within the fluid mixture for each mole composition and the new given parameter nominated as the current Arrhenius temperature (TAi) related to each pure solvent (i) can provide in a reliable estimation of the boiling point value of the two pure solvents constituting the studied binary fluid mixture [20,21,[44][45][46][47][48][49][50].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Approach of Partial Derivatives to Estimate the Normal Boiling Temperature via Viscosity Arrhenius Behaviour in N,N-Dimethylformamide + Ethanol Fluid Systems

Dallel¹,

Al-Arfaj²,

Alomair³

et al. 2017

Asian J. Chem.

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The experimental values of absolute viscosity in N,N-dimethylformamide + ethanol binary fluid mixtures (from 303.15 to 323.15 K) can induce us to investigate different correlation expressions as well as their derivative quantities. Investigation of the molar enthalpy of viscous flow (∆H*) and the viscosity activation energy (Ea) reveals close values and similar variation against composition, here we can justify the notion of partial activation energies Ea1 and Ea2 for pure components along with their separately individual contributions. Correlation between the two Arrhenius parameters in the whole range of compositions shows the existence of different interaction behaviours, delimited by peculiar compositions. It is also noticed that the ratio between the two parameters leads to the Arrhenius temperature which is in causal correlation with the temperature of vapourization in the liquid-vapour isobaric diagram and the limiting partial properties can permit us to predict values of the boiling temperatures of the pure fluid components.

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On the viscosity Arrhenius temperature for methanol +N,N-dimethylformamide binary mixtures over the temperature range from 303.15 to 323.15 K

Cited by 14 publications

References 41 publications

Viscosity Arrhenius parameters correlation: extension from pure to binary fluid mixtures

Viscosity Arrhenius parameters correlation: extension from pure to binary fluid mixtures

A novel approach to discuss the viscosity Arrhenius behaviour and to derive the partial molar properties in binary mixtures of N,N-dimethylacetamide with 2-methoxyethanol in the temperature interval (from 298.15 to 318.15) K

A Novel Approach of Partial Derivatives to Estimate the Normal Boiling Temperature via Viscosity Arrhenius Behaviour in N,N-Dimethylformamide + Ethanol Fluid Systems

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