Densities, isobaric expansivities and isothermal compressibilities of the thiocyanate-based ionic liquids at temperatures (298.15–338.15K) and pressures up to 10MPa

Królikowska, Marta; Hofman, Tadeusz

doi:10.1016/j.tca.2011.11.009

Cited by 75 publications

(55 citation statements)

References 41 publications

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“…As for DES 4 , the results were compared with Hayyan et al (2012) for ChCl:d-fructose at a molar ratio 2.5:1, the results are in agreement [6]. The densities of the two novel DESs, DES 18 and DES 30 were compared with Królikowska and Hofman (2012) for thiocyanate-based ILs [29]. It was found that DES 18 and DES 30 have higher densities at room temperature and this is because of the large molecular size of the salts; BTPC and ATPB.…”

Section: Densitymentioning

confidence: 80%

Triethylene glycol based deep eutectic solvents and their physical properties

Hayyan

Aissaoui

Hashim

et al. 2015

Journal of the Taiwan Institute of Chemical Engineers

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a b s t r a c tDeep eutectic solvents (DESs) have been recently emerged as new ionic liquids (ILs) analogues. The low vapor pressure, inflammability, biodegradability and positive effect on the environment make DESs more favorable as neoteric solvents. In this study, triethylene glycol (TEG) was selected as a hydrogen bond donor (HBD) to form DESs with five types of phosphonium and ammonium salts, namely methyltriphenylphosphonium bromide (MTPB), benzyltriphenylphosphonium chloride (BTPC), allyltriphenylphosphonium bromide (ATPB), choline chloride (2-hydroxyethyl-trimethylammonium) (ChCl) and N,N-diethylenethanolammonium chloride (DAC). The physical properties of the synthesized DESs were measured such as freezing point, viscosity, electrical conductivity, Walden rule, density, pH and water content. In addition, the Fourier transform infrared spectroscopy (FTIR) was employed to study the functional groups. The experiments were conducted at different temperatures, i.e. 25-80°C. It was found that DESs have suitable properties to be used in industrial processes such as separation, extraction, biochemical, petroleum and gas technology.

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Section: Densitymentioning

confidence: 80%

Triethylene glycol based deep eutectic solvents and their physical properties

Hayyan

Aissaoui

Hashim

et al. 2015

Journal of the Taiwan Institute of Chemical Engineers

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“…Considering the coefficient of thermal expansion at various temperatures, it could be observed that the variation of a p with temperature was almost independent of temperature and does not change considerably [5,8,22,23].…”

Section: Volumetric Propertiesmentioning

confidence: 97%

“…Although some physical properties of the ILs of this work are available in literature [5][6][7][8][9][10][11][12][13][14][15][16][17], but due to the insufficient data within all ranges of temperatures and lack of experimental values of kinematic viscosity, our effort was focused on five properties including density, refractive index, surface tension, dynamic and kinematic viscosities of 4 ILs, 1-butyl-3-methylimidazolium thiocyanate ( 6 ] had a certified purity greater than 0.98, 0.99, 0.99, and 0.99 mass fraction, respectively. Table 1 contains the purities and suppliers of materials used in this work.…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on the physical properties of 1-butyl-3-methylimidazolium based ionic liquids with thiocyanate and tetrafluoroborate anions, and 1-hexyl-3-methylimidazolium with tetrafluoroborate and hexafluorophosphate anions

Vakili‐Nezhaad

Vatani

Asghari

et al. 2012

The Journal of Chemical Thermodynamics

109

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“…We have summarized our calculation results as AAD (in %) of the calculated thermodynamic coefficients using PHSC EOS from those obtained by the use of Tait equation [28,31,34] in Table 5. We have assessed the proposed PHSC EOS by taking 1043 literature data points [27,29,33,43] over the temperature and pressure range within 293-338 K and 0.1-150 MPa, respectively. The overall AAD for the tested data points calculated by PHSC EOS was found to be 1.63%.…”

Section: Resultsmentioning

confidence: 99%