Formula: C8H15BF4N2In 2019 ,《The Solubility of Carbon Dioxide and Density for Binary Mixtures of 1-Butyl-3-methylimidazolium Acetate and 1-Butyl-3-methylimidazolium Tetrafluoroborate》 was published in Journal of Chemical & Engineering Data. The article was written by Shaahmadi, Fariborz; Hashemi Shahraki, Bahram; Farhadi, Asadollah. The article contains the following contents:
The gas sweetening process requires an efficient solvent with strong absorption capability to capture acid gases from flue gas. Absorption can be strong by a chem. formation (as “”chem.”” absorption) or simple with no chem. reactions (as “”phys.”” absorption). The purpose of the present study was to compare the CO2 solubility of the chem. absorbing ionic liquid, 1-butyl-3-methylimidazolium acetate ([Bmim][Ac]), with the phys. absorbing ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4]), as a function of temperature at (298.15 to 318.15) K for pressure up to 50 bar. In addition, the CO2 solubility for binary mixtures containing 75% [Bmim][Ac] + 25% [Bmim][BF4], 50% [Bmim][Ac] + 50% [Bmim][BF4] and 25% [Bmim][Ac] + 75% [Bmim][BF4] are measured over the same temperature range. Henry’s law constants are reported for the solubility of CO2 in the studied pure and mixed ionic liquids The d. of mixed ionic liquids is exptl. measured in T = 298.15 K, 308.15 K, and 318.15 K. The partial molar thermodn. functions of solvation, Gibbs free energy, enthalpy, and entropy are evaluated based on the variation of Henry’s law constants (as a representative of solubility) with temperature In the experiment, the researchers used 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Formula: C8H15BF4N2)
3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. Actually, lonic liquids as innovative fluids have received wide attention only during the past two decades. The number of SCI papers published on lonic liquids has exponentially increased from a few in 1996 to >5000 in 2016, exceeding the annual growth rates of other popular scientific areas. Formula: C8H15BF4N2
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem