Measurement of high pressure densities and atmospheric pressure viscosities of alkyl phosphate anion ionic liquids and correlation with the ε∗-modified Sanchez-Lacombe equation of state

Yuya Hiraga; Musashi Goto; Yoshiyuki Sato; Richard L. Smith

doi:10.1016/j.jct.2016.09.013

Measurement of high pressure densities and atmospheric pressure viscosities of alkyl phosphate anion ionic liquids and correlation with the ε^∗-modified Sanchez-Lacombe equation of state

Yuya Hiraga, Musashi Goto, Yoshiyuki Sato, Richard L. Smith

ENG - Research Center of Supercritical Fluid Terchnolody

Tohoku University

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

14 Citations (Scopus)

Abstract

High pressure densities up to 200 MPa from 313 to 393 K and atmospheric pressure viscosities from 293 to 373 K for two alkyl phosphate anion ionic liquids, 1-ethyl-3-methylimidazolium dimethylphosphate ([emim][DMP]) and 1-butyl-3-methylimidazolium dimethylphosphate ([bmim][DMP]), are reported. Several forms of the Tait equation were applied and all forms could correlate the data to within 0.03% average relative deviation (ARD). The derivative properties calculated had specific trends for the ionic liquids. The ε^∗-modified Sanchez-Lacombe equation of state could correlate the data to within an ARD of 0.07%, and the deviations were lower than those of the original Sanchez-Lacombe equation of state (0.19%). The improvement by ε^∗-modified Sanchez-Lacombe equation of state can be attributed its assumed close-packed density structure at low temperature.

Original language	English
Pages (from-to)	73-81
Number of pages	9
Journal	Journal of Chemical Thermodynamics
Volume	104
DOIs	https://doi.org/10.1016/j.jct.2016.09.013
Publication status	Published - 2017 Jan 1

Keywords

Density
Equation of state
Ionic liquid
Viscosity

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10.1016/j.jct.2016.09.013

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title = "Measurement of high pressure densities and atmospheric pressure viscosities of alkyl phosphate anion ionic liquids and correlation with the ε∗-modified Sanchez-Lacombe equation of state",

abstract = "High pressure densities up to 200 MPa from 313 to 393 K and atmospheric pressure viscosities from 293 to 373 K for two alkyl phosphate anion ionic liquids, 1-ethyl-3-methylimidazolium dimethylphosphate ([emim][DMP]) and 1-butyl-3-methylimidazolium dimethylphosphate ([bmim][DMP]), are reported. Several forms of the Tait equation were applied and all forms could correlate the data to within 0.03% average relative deviation (ARD). The derivative properties calculated had specific trends for the ionic liquids. The ε∗-modified Sanchez-Lacombe equation of state could correlate the data to within an ARD of 0.07%, and the deviations were lower than those of the original Sanchez-Lacombe equation of state (0.19%). The improvement by ε∗-modified Sanchez-Lacombe equation of state can be attributed its assumed close-packed density structure at low temperature.",

keywords = "Density, Equation of state, Ionic liquid, Viscosity",

author = "Yuya Hiraga and Musashi Goto and Yoshiyuki Sato and Smith, {Richard L.}",

note = "Funding Information: This work was supported by JSPS Grant in Aid for JSPS Fellows (Number 254392) and JSPS Grant in Aid Scientific Research (B) research Grant, Japan. Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

year = "2017",

month = jan,

day = "1",

doi = "10.1016/j.jct.2016.09.013",

language = "English",

volume = "104",

pages = "73--81",

journal = "Journal of Chemical Thermodynamics",

issn = "0021-9614",

publisher = "Academic Press Inc.",

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Measurement of high pressure densities and atmospheric pressure viscosities of alkyl phosphate anion ionic liquids and correlation with the ε^∗-modified Sanchez-Lacombe equation of state. / Hiraga, Yuya; Goto, Musashi; Sato, Yoshiyuki et al.
In: Journal of Chemical Thermodynamics, Vol. 104, 01.01.2017, p. 73-81.

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

TY - JOUR

T1 - Measurement of high pressure densities and atmospheric pressure viscosities of alkyl phosphate anion ionic liquids and correlation with the ε∗-modified Sanchez-Lacombe equation of state

AU - Hiraga, Yuya

AU - Goto, Musashi

AU - Sato, Yoshiyuki

AU - Smith, Richard L.

N1 - Funding Information: This work was supported by JSPS Grant in Aid for JSPS Fellows (Number 254392) and JSPS Grant in Aid Scientific Research (B) research Grant, Japan. Publisher Copyright: © 2016 Elsevier Ltd

PY - 2017/1/1

Y1 - 2017/1/1

N2 - High pressure densities up to 200 MPa from 313 to 393 K and atmospheric pressure viscosities from 293 to 373 K for two alkyl phosphate anion ionic liquids, 1-ethyl-3-methylimidazolium dimethylphosphate ([emim][DMP]) and 1-butyl-3-methylimidazolium dimethylphosphate ([bmim][DMP]), are reported. Several forms of the Tait equation were applied and all forms could correlate the data to within 0.03% average relative deviation (ARD). The derivative properties calculated had specific trends for the ionic liquids. The ε∗-modified Sanchez-Lacombe equation of state could correlate the data to within an ARD of 0.07%, and the deviations were lower than those of the original Sanchez-Lacombe equation of state (0.19%). The improvement by ε∗-modified Sanchez-Lacombe equation of state can be attributed its assumed close-packed density structure at low temperature.

AB - High pressure densities up to 200 MPa from 313 to 393 K and atmospheric pressure viscosities from 293 to 373 K for two alkyl phosphate anion ionic liquids, 1-ethyl-3-methylimidazolium dimethylphosphate ([emim][DMP]) and 1-butyl-3-methylimidazolium dimethylphosphate ([bmim][DMP]), are reported. Several forms of the Tait equation were applied and all forms could correlate the data to within 0.03% average relative deviation (ARD). The derivative properties calculated had specific trends for the ionic liquids. The ε∗-modified Sanchez-Lacombe equation of state could correlate the data to within an ARD of 0.07%, and the deviations were lower than those of the original Sanchez-Lacombe equation of state (0.19%). The improvement by ε∗-modified Sanchez-Lacombe equation of state can be attributed its assumed close-packed density structure at low temperature.

KW - Density

KW - Equation of state

KW - Ionic liquid

KW - Viscosity

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Measurement of high pressure densities and atmospheric pressure viscosities of alkyl phosphate anion ionic liquids and correlation with the ε^∗-modified Sanchez-Lacombe equation of state

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