Journal
JOURNAL OF SOLUTION CHEMISTRY
Volume 44, Issue 3-4, Pages 703-717Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10953-015-0326-0
Keywords
Protic ionic liquids; Density; Viscosity; Refractive index; Surface tension
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Funding
- project CICECO-Aveiro Institute of Materials [FCT UID /CTM /50011/2013]
- national funds through the FCT/MEC
- FEDER [PT2020]
- FCT [SFRH/BPD/82264/2011, SFRH/BPD/77858/2011]
- European Research Council (ERC) [ERC-2013-StG-337753]
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/77858/2011] Funding Source: FCT
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Experimental data for density, viscosity, refractive index and surface tension are reported, for the first time, in the temperature range between 288.15 and 353.15 K and at atmospheric pressure for two protic ionic liquids, namely 2-(dimethylamino)-N,N-dimethylethan-1-ammonium acetate, [N-11{2(N11)}H][CH3CO2], and N-ethyl-N,N-dimethylammonium phenylacetate, [N-112H][C7H7CO2]. The effect of the anion's aromaticity and the cation's aliphatic tails on the studied properties is discussed. Additional derived properties, such as isobaric thermal expansion coefficient, surface entropy and enthalpy and critical temperature, were estimated.
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