Thermodynamic study on adsorption of the ternary two-phase system of water-nonane-ethylene glycol monobutyl ether

Makoto Aratono; Fujiharu Nagoya; Takanori Takiue; Norihiro Ikeda

doi:10.1006/jcis.1994.1232

Thermodynamic study on adsorption of the ternary two-phase system of water-nonane-ethylene glycol monobutyl ether

Makoto Aratono, Fujiharu Nagoya, Takanori Takiue, Norihiro Ikeda

Research output: Contribution to journal › Article › peer-review

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Abstract

The interfacial tension γ of the ternary two-phase system of water-nonane-ethylene glycol monobutyl ether (C₄E₁) was measured as a function of the total mole fraction of C₄E₁ at six temperatures under atmospheric pressure. To analyze the experimental results thermodynamically, it was shown that the γ value should be plotted not against the total mole fraction of C₄E₁ but against the equilibrium mole fraction in the nonane and water phases. It was found that the entropy of adsorption of C₄E₁ from the nonane phase decreases and that from the water phase increases, compared to the entropy of the pure nonane/water interface formation, with increasing surface density of C₄E₁. Adsorption was discussed on the basis of the thermodynamic quantities of adsorption and transfer of C₄E₁ molecules.

Original language	English
Pages (from-to)	296-300
Number of pages	5
Journal	Journal of Colloid And Interface Science
Volume	165
Issue number	2
DOIs	https://doi.org/10.1006/jcis.1994.1232
Publication status	Published - Jul 1994

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

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10.1006/jcis.1994.1232

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title = "Thermodynamic study on adsorption of the ternary two-phase system of water-nonane-ethylene glycol monobutyl ether",

abstract = "The interfacial tension γ of the ternary two-phase system of water-nonane-ethylene glycol monobutyl ether (C4E1) was measured as a function of the total mole fraction of C4E1 at six temperatures under atmospheric pressure. To analyze the experimental results thermodynamically, it was shown that the γ value should be plotted not against the total mole fraction of C4E1 but against the equilibrium mole fraction in the nonane and water phases. It was found that the entropy of adsorption of C4E1 from the nonane phase decreases and that from the water phase increases, compared to the entropy of the pure nonane/water interface formation, with increasing surface density of C4E1. Adsorption was discussed on the basis of the thermodynamic quantities of adsorption and transfer of C4E1 molecules.",

author = "Makoto Aratono and Fujiharu Nagoya and Takanori Takiue and Norihiro Ikeda",

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T1 - Thermodynamic study on adsorption of the ternary two-phase system of water-nonane-ethylene glycol monobutyl ether

AU - Aratono, Makoto

AU - Nagoya, Fujiharu

AU - Takiue, Takanori

AU - Ikeda, Norihiro

PY - 1994/7

Y1 - 1994/7

N2 - The interfacial tension γ of the ternary two-phase system of water-nonane-ethylene glycol monobutyl ether (C4E1) was measured as a function of the total mole fraction of C4E1 at six temperatures under atmospheric pressure. To analyze the experimental results thermodynamically, it was shown that the γ value should be plotted not against the total mole fraction of C4E1 but against the equilibrium mole fraction in the nonane and water phases. It was found that the entropy of adsorption of C4E1 from the nonane phase decreases and that from the water phase increases, compared to the entropy of the pure nonane/water interface formation, with increasing surface density of C4E1. Adsorption was discussed on the basis of the thermodynamic quantities of adsorption and transfer of C4E1 molecules.

AB - The interfacial tension γ of the ternary two-phase system of water-nonane-ethylene glycol monobutyl ether (C4E1) was measured as a function of the total mole fraction of C4E1 at six temperatures under atmospheric pressure. To analyze the experimental results thermodynamically, it was shown that the γ value should be plotted not against the total mole fraction of C4E1 but against the equilibrium mole fraction in the nonane and water phases. It was found that the entropy of adsorption of C4E1 from the nonane phase decreases and that from the water phase increases, compared to the entropy of the pure nonane/water interface formation, with increasing surface density of C4E1. Adsorption was discussed on the basis of the thermodynamic quantities of adsorption and transfer of C4E1 molecules.

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Thermodynamic study on adsorption of the ternary two-phase system of water-nonane-ethylene glycol monobutyl ether

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