(Vapour+liquid) equilibrium in (N,N-dimethylacetamide+ethanol+water) at the temperature 313.15K

Zielkiewicz, Jan

doi:10.1016/j.jct.2005.08.001

Cited by 10 publications

(5 citation statements)

References 29 publications

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“…A review of literature shows that there are some papers reporting thermophysical properties of the two systems under study, such as excess volumes at 313.15 K or excess enthalpies , or both, densities and viscosities at 303.15 K, and densities, refractive indices, and relative permittivities at 298.15 K . On the other hand, there is also a work reporting densities and viscosities of the mixture N , N -dimethylacetamide + ethanol and finally a study of the vapor–liquid equilibrium of N , N -dimethylacetamide + methanol …”

Section: Introductionmentioning

confidence: 99%

Density, Speed of Sound, Refractive Index, and Viscosity of the Binary Mixtures of N,N-dimethylacetamide with Methanol and Ethanol

et al. 2016

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The thermophysical behavior of the binary mixtures N,Ndimethylacetamide + methanol and N,N-dimethylacetamide + ethanol has been studied through the measurement of density, ρ, speed of sound, u, refractive index, n D , and kinematic viscosity, ν, over the entire mole fraction range at the temperatures of 283.15, 298.15 and 313.15 K and at p = 99.0 kPa. Excess volumes, V E , excess isentropic compressibilities,κ S E , refractive index deviations, Δn D , and viscosity deviations, Δη, were also calculated and correlated with the Redlich−Kister equation. Both systems present negative excess volumes and excess isentropic compressibilities and positive refractive index deviations in the whole composition range. The viscosity deviations are positive for N,N-dimethylacetamide + methanol and turn to negative for N,N-dimethylacetamide + ethanol. Moreover, both systems behave differently when temperature is raised. The experimental results were interpreted based on strength of specific interactions, size, and shape of molecules.

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Section: Introductionmentioning

confidence: 99%

Density, Speed of Sound, Refractive Index, and Viscosity of the Binary Mixtures of N,N-dimethylacetamide with Methanol and Ethanol

et al. 2016

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“…Experimental and predicted VLE and H E data for the system ethanol (1) + N , N -dimethylacetamide (2): (a) P – xy data ■□ at 313.15 K, P – x data ⧫ at 353.15 K this work, ―, Mod. UNIFAC (Do.…”

Section: Resultsmentioning

confidence: 99%

Vapor–Liquid Equilibrium and Excess Enthalpy Data for Systems Containing N,N-Dimethylacetamide

Horstmann

Constantinescu²,

Gmehling³

2017

J. Chem. Eng. Data

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Isothermal P–x vapor–liquid equilibrium and excess enthalpy (H E) data were experimentally determined for the 10 binary systems hexane, heptane, 1-octene, benzene, toluene, ethanol, methanol, ethyl acetate, dibutyl ether, and dichloromethane with N,N- dimethylacetamide using the static synthetic method and isothermal flow calorimetry, respectively. The experimental data from this work together with data taken from literature were used for the extension of the group contribution method Modified UNIFAC (Dortmund).

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“…It is observed that the partial molar quantity Ea 1 (x1) related to DMF regularly decreases from a maximum (about 16 kJ mol -1 ) to tend to a local minimum (about 4.5 kJ mol ) at (x1 = 0.55), then increases to reach the value of pure DMF (around 9.28 kJ mol -1 ). This behaviour supposes that at high dilution of DMF, the introduction of DMF into EtOH promotes the hetero-asso- ciation formation through multiple hydrogen bounds between the polar groups of unlike molecules till the molar fraction x1 ≈ 016 = 1/6 (1DMF:5EtOH) where there is a beginning of structure changing of EtOH [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Thermodynamic Charactersmentioning

confidence: 99%

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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(Vapour+liquid) equilibrium in (N,N-dimethylacetamide+ethanol+water) at the temperature 313.15K

Cited by 10 publications

References 29 publications

Density, Speed of Sound, Refractive Index, and Viscosity of the Binary Mixtures of N,N-dimethylacetamide with Methanol and Ethanol

Density, Speed of Sound, Refractive Index, and Viscosity of the Binary Mixtures of N,N-dimethylacetamide with Methanol and Ethanol

Vapor–Liquid Equilibrium and Excess Enthalpy Data for Systems Containing N,N-Dimethylacetamide

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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