Solid−Liquid Equilibria of Binary Mixtures of Dimethylnaphthalene Isomers

Cheon, Yang-Ho; Kim, Kwang‐Joo

doi:10.1021/je700088n

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…As shown in Figure 1 and Table 2, the melting point of 2,6-DMN is 384.41 K and the molar fusion enthalpy is 24.89 kJ/mol, which show good agreement with the data in the reported literature. 19 The detailed DSC results are shown in Figure 1, where the area represents the molar fusion enthalpy.…”

Section: Resultsmentioning

confidence: 99%

“… a The standard uncertainty in the temperature is u ( T ) = 0.5 K, and the relative standard uncertainties in the pressure and molar enthalpy of fusion are u r ( p ) = 0.05 and u r (Δ fus H ) = 0.03. b Reference . …”

Section: Thermodynamic Modelsmentioning

confidence: 99%

“…It is well-known that 10 kinds of dimethylnaphthalene (DMN) isomers have similar physical properties such as boiling point and molecular polarity, especially 2,6-DMN and 2,7-dimethylnaphthalene (2,7-DMN) with only 0.3 °C difference in boiling point (Supporting Information Table S1) . Therefore, it is hardly possible to obtain high-purity (≥99.5%) 2,6-DMN by conventional processes, such as the distillation and adsorption operation. , In addition, 2,6-DMN forms eutectics together with 2,7-DMN, 1,5-dimethylnaphthalene (1,5-DMN), or 2,3-dimethylnaphthalene (2,3-DMN), which cannot be broken by melt crystallization.…”

Section: Introductionmentioning

confidence: 99%

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Solubilities of 2,6-Dimethylnaphthalene in Six Pure Solvents and Two Binary Solvent Systems

et al. 2019

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The solubility data of 2,6-dimethylnaphthalene (2,6-DMN) in various solvents are of great significance for the separation and oxidation process. The solubilities of 2,6-DMN in six pure solvents including isopropyl alcohol, n-heptane, cyclohexane, ethyl acetate, n-propyl acetate, and 2,2,4-trimethylpentane and two binary solvent mixtures (formic acid + water and acetic acid + water) were measured by a static analytical method with water content in the binary solvent systems varying from 0 to 0.2 at atmospheric pressure. The λh model and nonrandom two-liquids (NRTL) model were used to correlate these solubility data, and the relevant parameters were regressed by the least-squares method. and there is satisfactory agreement between the experimental results and model prediction derived from the λh model and NRTL model.

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Section: Resultsmentioning

confidence: 99%

Section: Thermodynamic Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Solubilities of 2,6-Dimethylnaphthalene in Six Pure Solvents and Two Binary Solvent Systems

et al. 2019

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New aspects of relationship between the enthalpies of fusion of aromatic compounds at the melting temperatures and the enthalpies of solution in benzene at 298.15 K. Part I

Yagofarov

Nagrimanov

Зиганшин

et al. 2018

The Journal of Chemical Thermodynamics

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Phase Transition Enthalpy Measurements of Organic and Organometallic Compounds and Ionic Liquids. Sublimation, Vaporization, and Fusion Enthalpies from 1880 to 2015. Part 2. C11–C192

Acree

Chickos

2017

Journal of Physical and Chemical Reference Data

126

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The second part of this compendium concludes with a collection of phase change enthalpies of organic molecules inclusive of C11–C192 reported over the period 1880–2015. Also included are phase change enthalpies including fusion, vaporization, and sublimation enthalpies for organometallic, ionic liquids, and a few inorganic compounds. Paper I of this compendium, published separately, includes organic compounds from C1 to C10 and describes a group additivity method for evaluating solid, liquid, and gas phase heat capacities as well as temperature adjustments of phase changes. Paper II of this compendium also includes an updated version of a group additivity method for evaluating total phase change entropies which together with the fusion temperature can be useful in estimating total phase change enthalpies. Other uses include application in identifying potential substances that either form liquid or plastic crystals or exhibit additional phase changes such as undetected solid–solid transitions or behave anisotropically in the liquid state.

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Solid−Liquid Equilibria of Binary Mixtures of Dimethylnaphthalene Isomers

Abstract: Experimental data on the solid-liquid equilibria for dimethylnaphthalene (DMN) isomer systems (2,6-DMN +

Cited by 3 publications

References 16 publications

Solubilities of 2,6-Dimethylnaphthalene in Six Pure Solvents and Two Binary Solvent Systems

Solubilities of 2,6-Dimethylnaphthalene in Six Pure Solvents and Two Binary Solvent Systems

New aspects of relationship between the enthalpies of fusion of aromatic compounds at the melting temperatures and the enthalpies of solution in benzene at 298.15 K. Part I

Phase Transition Enthalpy Measurements of Organic and Organometallic Compounds and Ionic Liquids. Sublimation, Vaporization, and Fusion Enthalpies from 1880 to 2015. Part 2. C11–C192

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