This paper reports the solubility of alkali bromide MBr (M is Na or K) in ionic liquid (IL) EMISE (1-ethyl-3-methylimidazolium ethyl sulfate), measured in the temperature range of 293.15 343.15 K. The relationship between solubility, m, and temperature, T, may be expressed in an empiric formula: ln(m/m0) = A1 + A2T0/T, where T0 is 1K, m0 is 1 mol kg-1. The observed sequence of solubility is NaBr greater than KBr. The fact implies that the less the radius of alkali ion, the greater is its solubility because small ion is easy to get into the interstices of IL EMISE. In addition, the standard transfer thermodynamic functions of MBr from water to IL EMISE were calculated in terms of solubility data of MBr in water. Using Born model, the dielectric constant, D= 8.7, was estimated and was close to the value of typical IL measured by Wakai.
Compounds
#
Formula
Name
1
C8H16N2O4S
1-ethyl-3-methylimidazolium ethyl sulfate
2
BrK
potassium bromide
3
BrNa
sodium bromide
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.