《Densities, Ultrasonic Speeds, Viscosities, Refractive Indices, and Excess Properties of 1-Butyl-3-methylimidazolium Tetrafluoroborate + N-Methylacetamide Binary Mixtures at Different Temperatures》 was published in Journal of Chemical & Engineering Data in 2020. These research results belong to Chaudhary, Neha; Nain, Anil Kumar. COA of Formula: C8H15BF4N2 The article mentions the following:
The thermophys. properties, viz., densities, ρ, ultrasonic speeds, u, viscosities, η, and refractive indexes, nD, were measured for the binary liquid mixtures of 1-butyl-3-methylimidazolium tetrafluoroborate [Bmim][BF4] with N-methylacetamide [NMA] over the whole concentration range, including those of pure liquids, at temperatures T/K = 293.15-318.15 and at pressure p = 101 kPa. Exptl. data were used to determine the excess molar volume, VmE, excess isentropic compressibility, κsE, excess speed of sound, uE, excess molar isentropic compressibility, Ks, mE, deviations in viscosity Δη, and deviations in refractive index, ΔϕnD. These parameters were fitted to the Redlich-Kister type polynomial equation. The partial molar volumes and partial molar compressibilities and excess partial molar volumes and excess partial molar compressibilities over the entire range of mole fraction and at infinite dilution were also determined The observed neg. values of VmE, κsE, Ks, mE, and Δη and pos. values uEand ΔϕnD indicate the strong interactions between the component mols. of these mixtures The results came from multiple reactions, including the reaction of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6COA of Formula: C8H15BF4N2)
3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. A multidisciplinary study on lonic liquids is emerging, including chemistry, materials science, chemical engineering, and environmental science. More specifically, some important fundamental viewpoints are now different from the original concepts, as insights into the nature of lonic liquids become deeper. For example, the physicochemical properties of lonic liquids are now recognized as ranging broadly from the oft quoted “nonvolatile, non-flammable, and air and water stable” to those that are distinctly volatile, flammable, and unstable. COA of Formula: C8H15BF4N2
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem