Thermodynamic excess properties of binary mixtures of methanol + pyridine, methanol + benzene, and pyridine + benzene at several temperatures and atmospheric pressure

Aliaj, Fisnik; Zeqiraj, Arbër

doi:10.1080/00319104.2023.2188213

Cited by 8 publications

(4 citation statements)

References 34 publications

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“…Hossain et al obtained similar results for cyclohexane + toluene and o -xylene mixtures. A similar behavior was also observed in the benzene + pyridine, toluene + aniline (unpublished data), and benzene + chlorobenzene (unpublished data) systems studied in our laboratory. As for excess isentropic compressibility, similar arguments apply to excess molar volume.…”

Section: Resultssupporting

confidence: 83%

“…The chemicals were used as supplied but stored over type 4 Å molecular sieves supplied by Sigma-Aldrich. The purity of the substances was checked by measuring their densities and sound speeds at 298.15 K and comparing them with the literature data. ,− ,− Table shows that experimental values for toluene, o -, m -, p -xylene, and ethylbenzene are in good agreement with the literature. The results for cyclohexane and benzene are reported in our previous paper …”

Section: Methodsmentioning

confidence: 72%

“…Among the main steps in this direction is knowledge of the physicochemical properties of liquid mixtures containing the main constituents of petroleum products. Additionally, thermophysical properties of mixtures, such as densities and sound speeds, are essential for the fundamental understanding of complex molecular interactions between components of the mixtures and also serve to test the theories of the liquid state. − …”

Section: Introductionmentioning

confidence: 99%

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Densities and Sound Speeds of Binary Mixtures of Cyclohexane + Benzene (or Toluene, or Ethylbenzene or o-, m-, p-Xylene) within the Temperature Range of 293.15–333.15 K and Ambient Pressure: Experimental, Correlation, and Modeling Study

Zeqiraj,

Hernández,

Syla

et al. 2023

J. Chem. Eng. Data

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This paper is a combined experimental, correlation, and modeling study of binary mixtures of cyclohexane with benzene and some alkyl-substituted benzenes, namely, toluene, ethylbenzene, o-, m-, and p-xylene. Experimental densities and sound speeds are reported at temperatures from 293.15 to 333.15 K and under local atmospheric pressure. Excess molar volumes, derived from experimental densities, excess isentropic compressibilities, derived from experimental densities, and sound speeds, calculated isobaric cubic expansivities, and literature heat capacities were correlated by Redlich−Kister polynomials and discussed. Further, the experimental densities, sound speeds, and related derived properties, namely, isobaric cubic expansivities and isentropic compressibilities, of the mixtures were correlated with the Jouyban−Acree model. The average absolute deviations of the correlated values from the experimental ones were better than 0.02, 0.06, 0.4, and 0.14% for density, sound speed, isobaric cubic expansivity, and isentropic compressibility, respectively. In addition, the results obtained from applying the perturbed chain statistical associating fluid theory equation of state and Schaff's collision factor theory for modeling densities and sound speeds show the versatility of these models for thermodynamic modeling and prediction in systems of varying complexity.

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Section: Resultssupporting

confidence: 83%

Section: Methodsmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

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Densities and Sound Speeds of Binary Mixtures of Cyclohexane + Benzene (or Toluene, or Ethylbenzene or o-, m-, p-Xylene) within the Temperature Range of 293.15–333.15 K and Ambient Pressure: Experimental, Correlation, and Modeling Study

Zeqiraj,

Hernández,

Syla

et al. 2023

J. Chem. Eng. Data

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“…The current work belongs to our systematic research program concerning, among others, the measurements and modeling of volumetric, transport, and optical properties of binary and ternary mixtures of alkanols with various organic compounds. − Here, we present for the first time the experimental densities and excess molar volumes at temperatures T = (293.15, 298.15, 303.15, 313.15, 323.15, and 333.15) K under ambient pressure for the ternary system butan-1-ol (1) + cyclohexane (2) + benzene (3). The corresponding binary subsystems, namely, butan-1-ol (1) + cyclohexane (2), butan-1-ol (1) + benzene (3), and cyclohexane (2) + benzene (3), have also been studied.…”

Section: Introductionmentioning

confidence: 99%

Densities and Excess Molar Volumes of the Butan-1-ol + Cyclohexane + Benzene Ternary System within the Temperature Range (293.15–333.15) K and under Ambient Pressure

Zeqiraj,

Llozana,

Gjevori

et al. 2024

J. Chem. Eng. Data

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K and under ambient pressure conditions are reported for the first time for the ternary system (butan-1-ol + cyclohexane + benzene) covering the entire composition range. The corresponding binary subsystems (butan-1-ol + cyclohexane), (butan-1-ol + benzene), and (cyclohexane + benzene) have also been studied. The excess molar volumes, derived from experimental densities, were calculated and correlated by using Redlich−Kister and Cibulka equations for binary and ternary systems, respectively. Results have been discussed in terms of molecular interactions between the mixture's components and structural effects. The Jouyban-Acree model was used to represent the composition and temperature dependence of the densities of the studied binary and ternary mixtures. The accuracy of the Jouyban-Acree model was evaluated, and the absolute average percentage deviation between experimental and correlated densities was less than 0.06 and 0.08% for binary and ternary mixtures, respectively. Further, the ternary excess molar volumes are compared with the predicted values from binary contribution symmetric (Kohler and Muggianu) and asymmetric (Hillert and Toop) models. The asymmetric models outperformed the symmetric ones when butan-1-ol was chosen as the asymmetric component.

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Densities, Sound Speeds, and Refractive Indices of 1-Propanol + Cyclohexane (or Cyclohexene or Cyclohexanone) Binary Mixtures at Various Temperatures Under Atmospheric Pressure: Experimental and Modeling Study

Hernández

Zeqiraj²,

Aliaj

2023

Int J Thermophys

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Thermodynamic excess properties of binary mixtures of methanol + pyridine, methanol + benzene, and pyridine + benzene at several temperatures and atmospheric pressure

Cited by 8 publications

References 34 publications

Densities and Sound Speeds of Binary Mixtures of Cyclohexane + Benzene (or Toluene, or Ethylbenzene or o-, m-, p-Xylene) within the Temperature Range of 293.15–333.15 K and Ambient Pressure: Experimental, Correlation, and Modeling Study

Densities and Sound Speeds of Binary Mixtures of Cyclohexane + Benzene (or Toluene, or Ethylbenzene or o-, m-, p-Xylene) within the Temperature Range of 293.15–333.15 K and Ambient Pressure: Experimental, Correlation, and Modeling Study

Densities and Excess Molar Volumes of the Butan-1-ol + Cyclohexane + Benzene Ternary System within the Temperature Range (293.15–333.15) K and under Ambient Pressure

Densities, Sound Speeds, and Refractive Indices of 1-Propanol + Cyclohexane (or Cyclohexene or Cyclohexanone) Binary Mixtures at Various Temperatures Under Atmospheric Pressure: Experimental and Modeling Study

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