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JOURNAL OF MOLECULAR LIQUIDS · 2019 · IF 4.561

Density and viscosity for binary mixtures of methyl decanoate with 1-propanol, 1-butanol, and 1-pentanol

Weibiao Du,Xiaopo Wang

In this work, the volumetric and viscometric properties of the mixtures of methyl decanoate with 1-propanol, 1-butanol, and 1-pentanol were investigated from 298.15 K to 333.15 K. The density data of the mixtures were obtained based on the vibrating-tube densimeter , and the kinematic viscosities of the mixtures were measured using the Ubbelohde capillary viscometer . Based on the experimental data, the excess molar volumes and viscosity deviations were calculated and correlated with the Redlich–Kister equation. In addition, the McAllister four-body model, Frenkel model, Grunberg-Nissan model, and Heric's model were used to correlate the viscosities of the mixtures.

研究领域: 物理化学 · 热力学 · 流体性质 · 燃料化学 · 溶液化学

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JOURNAL OF MOLECULAR LIQUIDS · 2020 · IF 5.065

Density, viscosity and excess properties for binary mixtures of 2-(ethylamino)ethanol and 2-(butylamino)ethanol with 2-butoxyethanol at temperatures from (293.15 to 353.15) K

Yu Dong,Tiantian Ping,Xiaoqin Shi,Shufeng Shen

Nonaqueous amine-based blends have great potential for energy-efficient CO 2 absorbent. In this work, densities and viscosities were measured for liquid binary mixtures of 2-(ethylamino)ethanol (EAE) and 2-(butylamino)ethanol (BAE) with 2-butoxyethanol (EGBE) at temperatures of (293.15–353.15)K over the entire concentration range and atmospheric pressure. Intermolecular interactions between EGBE and two secondary amines with different carbon chain length were discussed. The excess molar volume ( V E ), viscosity deviations ( ∆η ) and excess Gibbs free energy ( ∆G ⁎ E ) were calculated from the experimental data and also correlated with the Redlich-Kister equation to estimate the binary interaction parameters. The experimental data and the calculated from the proposed correlations for the studied binary mixtures matched well each other, with AADs within 0.01% and 1.45% for density and viscosity respectively. The variation of excess properties was also discussed in terms of intermolecular interactions. Weak interactions on mixing these binary mixtures with different mass fractions were observed from the FTIR spectra analysis.

研究领域: 化学工程 · 热力学 · 流体物理化学 · 气体吸收 · 分离科学

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Density and viscosity for binary mixtures of methyl decanoate with 1-propanol, 1-butanol, and 1-pentanol

Density, viscosity and excess properties for binary mixtures of 2-(ethylamino)ethanol and 2-(butylamino)ethanol with 2-butoxyethanol at temperatures from (293.15 to 353.15) K