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Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids

In this study, thermo physical properties such as density, viscosity, refractive index and surface tension of aqueous solutions of tetramethylammonium hydroxide (TMAOH), tetraethylammonium hydroxide (TEAOH), tetrapropylammonium hydroxide (TPAOH) and tetrabutylammonium hydroxide (TBAOH) was investiga...

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Main Authors:	Kartikawati, N.A., Safdar, R., Lal, B., Mutalib, M.I.B.A., Shariff, A.M.
Format:	Article
Published:	Elsevier B.V. 2018
Online Access:	https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040685594&doi=10.1016%2fj.molliq.2018.01.040&partnerID=40&md5=b4df5f6d6c446135b9b64cbe3b432a21 http://eprints.utp.edu.my/21727/
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spelling	my.utp.eprints.217272019-01-10T06:56:04Z Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids Kartikawati, N.A. Safdar, R. Lal, B. Mutalib, M.I.B.A. Shariff, A.M. In this study, thermo physical properties such as density, viscosity, refractive index and surface tension of aqueous solutions of tetramethylammonium hydroxide (TMAOH), tetraethylammonium hydroxide (TEAOH), tetrapropylammonium hydroxide (TPAOH) and tetrabutylammonium hydroxide (TBAOH) was investigated as a function of temperature. These properties were measured in temperatures ranging from 298.15 to 333.15 K and the temperature was increased by an interval of 5 K from 298.15 K and after 303.15 K, it was increased by an interval of 10 K, while the concentrations of all the aqueous solutions were changed from 2.5 to 30 mass percent. The results revealed that the measured properties of all aqueous ILs are inversely related to temperature, while the increase in concentration had different effects on these properties. In the case of density, an increase in the concentration of ILs TMAOH and TEAOH increased their density, while the increase in the concentration of TPAOH and TBAOH decreased their density. On the other hand, the viscosities and refractive indices of all aqueous ILs increased with an increase in concentration, but the surface tensions decreased with the increase in concentration. The derived properties including thermal expansion and excess molar volume of all the aqueous ILs were determined using density data. The thermal expansion data showed an increasing trend with an increase in the temperatures and concentrations of ILs whereas the negative values of excess molar volumes decreased with an increase in temperatures. The correlation of thermo physical properties with temperatures exhibits a good agreement between experimental and predicted values. Â© 2018 Elsevier B.V. 2018 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040685594&doi=10.1016%2fj.molliq.2018.01.040&partnerID=40&md5=b4df5f6d6c446135b9b64cbe3b432a21 Kartikawati, N.A. and Safdar, R. and Lal, B. and Mutalib, M.I.B.A. and Shariff, A.M. (2018) Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids. Journal of Molecular Liquids, 253 . pp. 250-258. http://eprints.utp.edu.my/21727/
institution	Universiti Teknologi Petronas
building	UTP Resource Centre
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Petronas
content_source	UTP Institutional Repository
url_provider	http://eprints.utp.edu.my/
description	In this study, thermo physical properties such as density, viscosity, refractive index and surface tension of aqueous solutions of tetramethylammonium hydroxide (TMAOH), tetraethylammonium hydroxide (TEAOH), tetrapropylammonium hydroxide (TPAOH) and tetrabutylammonium hydroxide (TBAOH) was investigated as a function of temperature. These properties were measured in temperatures ranging from 298.15 to 333.15 K and the temperature was increased by an interval of 5 K from 298.15 K and after 303.15 K, it was increased by an interval of 10 K, while the concentrations of all the aqueous solutions were changed from 2.5 to 30 mass percent. The results revealed that the measured properties of all aqueous ILs are inversely related to temperature, while the increase in concentration had different effects on these properties. In the case of density, an increase in the concentration of ILs TMAOH and TEAOH increased their density, while the increase in the concentration of TPAOH and TBAOH decreased their density. On the other hand, the viscosities and refractive indices of all aqueous ILs increased with an increase in concentration, but the surface tensions decreased with the increase in concentration. The derived properties including thermal expansion and excess molar volume of all the aqueous ILs were determined using density data. The thermal expansion data showed an increasing trend with an increase in the temperatures and concentrations of ILs whereas the negative values of excess molar volumes decreased with an increase in temperatures. The correlation of thermo physical properties with temperatures exhibits a good agreement between experimental and predicted values. Â© 2018
format	Article
author	Kartikawati, N.A. Safdar, R. Lal, B. Mutalib, M.I.B.A. Shariff, A.M.
spellingShingle	Kartikawati, N.A. Safdar, R. Lal, B. Mutalib, M.I.B.A. Shariff, A.M. Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids
author_facet	Kartikawati, N.A. Safdar, R. Lal, B. Mutalib, M.I.B.A. Shariff, A.M.
author_sort	Kartikawati, N.A.
title	Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids
title_short	Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids
title_full	Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids
title_fullStr	Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids
title_full_unstemmed	Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids
title_sort	measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids
publisher	Elsevier B.V.
publishDate	2018
url	https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040685594&doi=10.1016%2fj.molliq.2018.01.040&partnerID=40&md5=b4df5f6d6c446135b9b64cbe3b432a21 http://eprints.utp.edu.my/21727/
_version_	1738656329600335872
score	13.211869

Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids

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