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1.046 Aktuelle Fachpublikationen zum Thema temperature

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Density of 1-Butyl-3-methylimidazolium Bis(trifluoromethanesulfonyl)amide and 1-Hexyl-3-methylimidazolium Bis(trifluoromethanesulfonyl)amide over an Extended Pressure Range up to 250 MPa

30.04.2015 | Mitsuhiro Kanakubo; Kenneth R. Harris, Journal of Chemical & Engineering Data, 2015

Densities of the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ([BMIM][Tf2N]) between (273 and 363) K over an extended pressure range up to 250 MPa and densities for 1-hexyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ([HMIM][Tf2N]) at 288.15 K to 175 MPa ...

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Binary Liquid–Liquid Equilibria of γ-Valerolactone with Some Hydrocarbons

17.04.2015 | Martin Klajmon; Karel Řehák; Pavel Morávek; Maja Matoušová, Journal of Chemical & Engineering Data, 2015

Liquid–liquid equilibrium data in binary systems γ-valerolactone + hydrocarbon (n-heptane, n-decane, n-dodecane, cyclohexane, and 2,4,4-trimethyl-1-penetene) were determined by direct analytical and cloud-point methods. The experimental data were smoothed by the extended scaling law equation ...

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Vapor–Liquid Equilibrium of Three Hydrofluorocarbons with [HMIM][Tf2N]

17.04.2015 | Xiangyang Liu; Maogang He; Nan Lv; Xuetao Qi; Chao Su, Journal of Chemical & Engineering Data, 2015

New experimental data for the vapor–liquid equilibrium of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([HMIM][Tf2N]) with difluoromethane (R-32), 1,1-difluoroethane (R-152a), and pentafluoroethane (R-125) were presented. Measurements were performed using an isochoric saturation ...

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Temperature and Pressure Dependence of the Viscosities of Krytox GPL102 Oil and Di(pentaerythritol) Hexa(isononanoate)

15.04.2015 | Kenneth R. Harris, Journal of Chemical & Engineering Data, 2015

This work reports high-pressure viscosity measurements on two viscous liquids that may prove useful as high-temperature, high-viscosity reference materials, Krytox GPL102 and di(pentaerythritol) hexa(isononanoate). The perfluoropolyether oil, Krytox GPL102, is the subject of a round-robin ...

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Quantitative Structure–Property Relationship Predictions of Critical Properties and Acentric Factors for Pure Compounds

14.04.2015 | Wendy Hawley Carande; Andrei Kazakov; Chris Muzny; Michael Frenkel, Journal of Chemical & Engineering Data, 2015

Knowledge of critical constants and phase boundary pressure properties is essential to understanding thermodynamic behavior of substances and is often required in practical process design applications. Where critically evaluated data are unavailable, a quantitative structure–property relationship ...

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Volumetric and Viscometric Studies of Amino Acids in Vitamin B6 Aqueous Solutions at Various Temperatures

09.04.2015 | Daofan Ma; Xiaofeng Jiang; Guoqiang Wei; Chunying Zhu, Journal of Chemical & Engineering Data, 2015

The densities and viscosities of glycine, l-alanine, l-valine, l-threonine, and l-arginine in (0.1 to 0.4) mol·kg–1 vitamin B6 aqueous solutions were measured and studied over the entire molality range at (293.15, 303.15, 313.15, and 323.15) K and atmospheric pressure. The apparent molar volume ...

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Solubility of CO2 in the Mixture of Methanol and ZIF-8 at Low Temperatures

08.04.2015 | Chengna Dai; Wenjuan Wei; Zhigang Lei, Journal of Chemical & Engineering Data, 2015

In this work, the mixture of methanol and zeolitic imidazolate framework (ZIF-8) was proposed for CO2 capture by adsorptive absorption at low temperatures. Methanol and ZIF-8 serve as absorption and adsorption functions, respectively. The solubility of CO2 in the different mixed absorbents (95 wt ...

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Density and Volumetric Properties of Aqueous Solutions of Trimethylamine N-Oxide in the Temperature Range from (278.15 to 323.15) K and at Pressures up to 100 MPa

07.04.2015 | Dmitriy M. Makarov; Gennadiy I. Egorov; Arkadiy M. Kolker, Journal of Chemical & Engineering Data, 2015

Densities of aqueous solutions of trimethylamine N-oxide (TMAO) were measured over the concentration range (0.0875 to 4.3251) mol·kg–1 at temperatures (278.15, 288.15, 298.15, 308.15, and 323.15) K and pressures (0.101, 10, 25, 50, 75, and 100) MPa. Volumetric properties such as apparent molar ...

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Densities and Viscosities of Ternary N,N′-Bis(2-pyridylmethylidene)-1,2-diiminoethane Schiff Base + Imidazolium Based Ionic Liquids + Acetonitrile Solutions at T = (298.15 to 313.15) K

23.03.2015 | Hemayat Shekaari; Amir Kazempour; Maryam Khoshalhan, Journal of Chemical & Engineering Data, 2015

The effect of some imidazolium based ionic liquids including 1-propyl-3-methylimidazolium bromide ([PMIm]Br), 1-pentyl-3-methylimidazolium bromide ([PnMIm]Br), 1-hexyl-3-methylimidazolium bromide ([HMIm]Br), and 1-hexyl-3-methylimidazolium chloride ([HMIm]Cl) on the volumetric and viscometric ...

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Speed of Sound Measurements in Ethanol and Benzene over the Temperature Range from (253.2 to 353.2) K at Pressures up to 30 MPa

19.03.2015 | Robin Wegge; Markus Richter; Roland Span, Journal of Chemical & Engineering Data, 2015

The speed of sound in ethanol and benzene was measured over the temperature range of (253.2 to 353.2) K with pressures up to 30MPa utilizing the double-path length pulse-echo technique. The speed of sound system was calibrated with pure water at temperatures between T = (274.15 and 353.15) K and ...

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