Thermodynamic properties of 1-butyl-3-methylpyridinium tetrafluoroborate

Viscosimetric Study of Binary Mixtures Containing Pyridinium-Based Ionic Liquids and Alkanols

“…The water content of ILs was less than 100 ppm as determined by Karl Fischer titration using an automatic titrator Crison KF 1S-2B. The properties of the pure compounds, density and absolute viscosity, at working temperatures and comparison with literature values − ,− are gathered in Table .…”

“… a Standard uncertainty u is u ( T ) = 0.01 K, and the combined expanded uncertainties U c are U c (ρ) = 0.1 kg·m –3 , U c (η) = 1 % with 0.95 level of confidence ( k ≈ 2). b Reference . c Reference . d Reference . e Reference . f Reference . g Reference . h Reference . i Reference . j Reference . k Reference . …”

On the volumetric properties of 2-hydroxy ethylammonium formate ionic liquid under high-pressures: Measurement and molecular dynamics

“…The internal pressure, πT values of the ILs are higher than those of organic solvents and water because of a higher electrostatic interactions in IL [42]. However, in the case of proptic ILs, the lower πT values than classic molten salts is due to other types of molecular interactions in the protic IL, such as polarization and hydrogen bonding in addition to electrostatic interactions as seen purely in molten salts.…”

“…Generally, isobaric expansivity coefficients, are typically between (4-8)×10 -4 K -1 which is comparable with water and lower than that of organic solvents [39]. The literature survey of the previous efforts [40][41][42] reveals that the γυ values of ILs decrease with temperature and increase slightly with pressure. The results for γυ values of 2-HEAF reported in Table 5 and shown in Figure S2c (see the Supplementary data file), reveal that γυ increases slightly with pressure at most 0.12 MPa•K -1 but those values are not almost constant in the temperature range studied and vary with the temperature within ±0.3 MPa•K -1 .…”