Speeds of sound in ionic liquids under elevated pressures. New experimental data and CP-PC-SAFT modelling

Jeremiasz Pilarz; Joanna Feder-Kubis; Vyacheslav V. Melent'ev; Olga S. Ryshkova; Vadim I. Korotkovskii; Anton K. Radchenko; Eugene B. Postnikov; Mirosław Chorążewski; Ilya Polishuk

doi:10.1016/j.molliq.2020.112669

Speeds of sound in ionic liquids under elevated pressures. New experimental data and CP-PC-SAFT modelling

Jeremiasz Pilarz, Joanna Feder-Kubis, Vyacheslav V. Melent'ev, Olga S. Ryshkova, Vadim I. Korotkovskii, Anton K. Radchenko, Eugene B. Postnikov, Mirosław Chorążewski, Ilya Polishuk

Department of Chemical Engineering

Ariel University

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

Abstract

This study reports synthesis of a new ionic liquid ethyl-1-octyloxymethylimidazolium bis(trifluoromethylsulfonyl)imide ([C₂imC₁OC₈][NTf₂]) and its speed of sound data at 295.15 K ≤ T ≤ 373.15 K and 1 bar ≤ P ≤ 1471.5 bar. In addition, the atmospheric pressure densities of this IL were measured at 292.05 K ≤ T ≤ 423.65 K and determined at 295.15 K ≤ T ≤ 373.15 K and 1 bar ≤ P ≤ 1500 bar. Basing on a representative variety of ILs, it is demonstrated that the CP-PC-SAFT EOS adjusted to their high-pressure density data by a standardized numerical procedure and attached by a simple expression for estimating the ideal gas heat capacities is capable to predict sound velocities in a particularly accurate manner, with AAD around 1% and at times even smaller that the experimental uncertainties.

Original language	English
Article number	112669
Journal	Journal of Molecular Liquids
Volume	303
DOIs	https://doi.org/10.1016/j.molliq.2020.112669
State	Published - 1 Apr 2020

Keywords

CP-PC-SAFT
Ionic liquids
Predictive modelling
Speed of sound
Synthesis

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry
Materials Chemistry

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10.1016/j.molliq.2020.112669

Cite this

@article{d6e530bcbde449498728246fd871d8ac,

title = "Speeds of sound in ionic liquids under elevated pressures. New experimental data and CP-PC-SAFT modelling",

abstract = "This study reports synthesis of a new ionic liquid ethyl-1-octyloxymethylimidazolium bis(trifluoromethylsulfonyl)imide ([C2imC1OC8][NTf2]) and its speed of sound data at 295.15 K ≤ T ≤ 373.15 K and 1 bar ≤ P ≤ 1471.5 bar. In addition, the atmospheric pressure densities of this IL were measured at 292.05 K ≤ T ≤ 423.65 K and determined at 295.15 K ≤ T ≤ 373.15 K and 1 bar ≤ P ≤ 1500 bar. Basing on a representative variety of ILs, it is demonstrated that the CP-PC-SAFT EOS adjusted to their high-pressure density data by a standardized numerical procedure and attached by a simple expression for estimating the ideal gas heat capacities is capable to predict sound velocities in a particularly accurate manner, with AAD around 1% and at times even smaller that the experimental uncertainties.",

keywords = "CP-PC-SAFT, Ionic liquids, Predictive modelling, Speed of sound, Synthesis",

author = "Jeremiasz Pilarz and Joanna Feder-Kubis and Melent'ev, {Vyacheslav V.} and Ryshkova, {Olga S.} and Korotkovskii, {Vadim I.} and Radchenko, {Anton K.} and Postnikov, {Eugene B.} and Miros{\l}aw Chor{\c a}{\.z}ewski and Ilya Polishuk",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = apr,

day = "1",

doi = "10.1016/j.molliq.2020.112669",

language = "الإنجليزيّة",

volume = "303",

journal = "Journal of Molecular Liquids",

issn = "0167-7322",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Speeds of sound in ionic liquids under elevated pressures. New experimental data and CP-PC-SAFT modelling

AU - Pilarz, Jeremiasz

AU - Feder-Kubis, Joanna

AU - Melent'ev, Vyacheslav V.

AU - Ryshkova, Olga S.

AU - Korotkovskii, Vadim I.

AU - Radchenko, Anton K.

AU - Postnikov, Eugene B.

AU - Chorążewski, Mirosław

AU - Polishuk, Ilya

PY - 2020/4/1

Y1 - 2020/4/1

N2 - This study reports synthesis of a new ionic liquid ethyl-1-octyloxymethylimidazolium bis(trifluoromethylsulfonyl)imide ([C2imC1OC8][NTf2]) and its speed of sound data at 295.15 K ≤ T ≤ 373.15 K and 1 bar ≤ P ≤ 1471.5 bar. In addition, the atmospheric pressure densities of this IL were measured at 292.05 K ≤ T ≤ 423.65 K and determined at 295.15 K ≤ T ≤ 373.15 K and 1 bar ≤ P ≤ 1500 bar. Basing on a representative variety of ILs, it is demonstrated that the CP-PC-SAFT EOS adjusted to their high-pressure density data by a standardized numerical procedure and attached by a simple expression for estimating the ideal gas heat capacities is capable to predict sound velocities in a particularly accurate manner, with AAD around 1% and at times even smaller that the experimental uncertainties.

AB - This study reports synthesis of a new ionic liquid ethyl-1-octyloxymethylimidazolium bis(trifluoromethylsulfonyl)imide ([C2imC1OC8][NTf2]) and its speed of sound data at 295.15 K ≤ T ≤ 373.15 K and 1 bar ≤ P ≤ 1471.5 bar. In addition, the atmospheric pressure densities of this IL were measured at 292.05 K ≤ T ≤ 423.65 K and determined at 295.15 K ≤ T ≤ 373.15 K and 1 bar ≤ P ≤ 1500 bar. Basing on a representative variety of ILs, it is demonstrated that the CP-PC-SAFT EOS adjusted to their high-pressure density data by a standardized numerical procedure and attached by a simple expression for estimating the ideal gas heat capacities is capable to predict sound velocities in a particularly accurate manner, with AAD around 1% and at times even smaller that the experimental uncertainties.

KW - CP-PC-SAFT

KW - Ionic liquids

KW - Predictive modelling

KW - Speed of sound

KW - Synthesis

UR - http://www.scopus.com/inward/record.url?scp=85079557411&partnerID=8YFLogxK

U2 - 10.1016/j.molliq.2020.112669

DO - 10.1016/j.molliq.2020.112669

M3 - مقالة

SN - 0167-7322

VL - 303

JO - Journal of Molecular Liquids

JF - Journal of Molecular Liquids

M1 - 112669

ER -

Speeds of sound in ionic liquids under elevated pressures. New experimental data and CP-PC-SAFT modelling

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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