Thermodynamic properties of binary mixtures of tetrahydropyran with pyridine and isomeric picolines: Excess molar volumes, excess molar enthalpies and excess isentropic compressibilities

Saini, Neeti; Jangra, Sunil K.; Yadav, J.S.; Sharma, Dimple; Sharma, V.K.

doi:10.1016/j.tca.2011.02.002

Cited by 15 publications

(3 citation statements)

References 27 publications

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“…1-Ethyl-3-methylimidazolium tetrafluoroborate is one of the latest investigated ionic liquid and thermodynamic data of mixtures relating to this ionic liquid is scarce [8][9][10][11]. In recent studies [12][13][14][15] Graph theory has been employed successfully to predict excess molar volumes, V E , excess molar enthalpies, H E , excess isentropic compressibilities, j E S and excess Gibb's free energy, G E data of the various binary as well as ternary mixtures comprising of organic solvents. It would be of interest to see how Graph theory describes the V E , H E , and j E S values of the investigated binary ionic liquid mixtures.…”

Section: Introductionmentioning

confidence: 99%

Topological investigations of binary mixtures containing ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate and pyridine or isomeric picolines

Solanki

Hooda

Sharma

2013

The Journal of Chemical Thermodynamics

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Section: Introductionmentioning

confidence: 99%

Topological investigations of binary mixtures containing ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate and pyridine or isomeric picolines

Solanki

Hooda

Sharma

2013

The Journal of Chemical Thermodynamics

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“…In many instances, variation of a thermodynamic property with the composition of a binary mixture is recorded in relative values, as excess differences from the ideally expected values. Thus, plots of viscosities, 1,9 excess molar volumes, 4,6,8,19,20 isentropic compressibilities, 4,19,20 refractive indices, 19,21 or enthalpies 5,20,22 are encountered, where the experimental data are fitted with equations derived from different models, with variable success. Such plots are not amenable to an analysis based on their NIIs, since this index was defined as a ratio between two areas, NII = A 1 /A 2 (see Figure 1), and A 2 = 0 in these excess plots.…”

Section: Resultsmentioning

confidence: 99%

Use of Nonideality Parameters for the Analysis of the Thermodynamic Properties of Binary Mixtures

et al. 2021

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Two parameters are introduced, a nonideality index (NII) and a nonideality area (NIA), for the analysis of the variations of thermodynamic properties of binary mixtures. Their calculation is based, for the NII, on experimental plots of the variation of a given property (density, refractive index, viscosity, etc.), and for the NIA, on experimental plots of its excess value (excess enthalpies, molar volumes, viscosities, refractive indices, isentropic compressibilities, etc.) with the mixture composition. Both nonideality parameters are therefore not based on any theoretical model or on its derived parameters, being applicable with any fitting equation. The NII or NIA values for a thermodynamic property of a series of related binary mixtures reveal interesting trends, which are not evident in most analyses of such systems. Besides their predictive value, these trends provide information on the relevance of solvent characteristics of the binary mixture, thus supporting new insights or interpretations of the experimental data.

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“…Py or a-or b-or c-picoline (2) [51], Nmethyl pyrrolidin-2-one (1) ? benzene or toluene or o-xylene (2) mixtures [52,53] have revealed that while Py or a-or b-or c-picoline exist as associated molecular entities, benzene or toluene or o-xylene exist as monomers.…”

Section: Graph Theory and Resultsmentioning

confidence: 99%

Excess Heat Capacities of Binary Mixtures Containing o-Chlorotoluene and Pyridine or Isomeric Picolines or Aromatic Hydrocarbons

Sharma

Dua

2015

J Solution Chem

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The excess molar heat capacities, C E P À Á 12 , of binary mixtures of o-chlorotoluene (1) with pyridine, a-, b-or c-picoline, benzene, toluene or o-xylene (2) have been measured as a function of composition at 298.15, 303.15 and 308.15 K using a micro differential scanning calorimeter (Model-lDSC 7 Evo). The C E P À Á 12 data have been fitted with the Redlich-Kister equation to calculate binary adjustable parameters along with standard deviations. The sign and magnitude of values of o-chlorotoluene (1) ? pyridine or a-or b-picoline (2) are dictated by the relative proportion of components in the mixtures. However C E P À Á 12 values for o-chlorotoluene (1) ? c-picoline (2) mixture are positive and C E P À Á 12 values for o-chlorotoluene (1) ? benzene or toluene or o-xylene (2) mixtures are negative over the entire mole fraction range. The topology of the constituent molecules has been employed (Graph theory) to determine the C E P À Á 12 data of the studied mixtures. It has been observed that C E P À Á 12 values obtained by Graph theory are in agreement with the experimental values.

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Thermodynamic properties of binary mixtures of tetrahydropyran with pyridine and isomeric picolines: Excess molar volumes, excess molar enthalpies and excess isentropic compressibilities

Cited by 15 publications

References 27 publications

Topological investigations of binary mixtures containing ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate and pyridine or isomeric picolines

Topological investigations of binary mixtures containing ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate and pyridine or isomeric picolines

Use of Nonideality Parameters for the Analysis of the Thermodynamic Properties of Binary Mixtures

Excess Heat Capacities of Binary Mixtures Containing o-Chlorotoluene and Pyridine or Isomeric Picolines or Aromatic Hydrocarbons

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