Molecular interaction between binary mixtures 1-butyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide with N-Vinyl-2-pyrrolidinone at different temperatures

Add time:07/29/2019    Source:sciencedirect.com

Densities (ρ), speeds of sound (u) and refractive index (nD) for the binary mixture of 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [Bmim] [NTf2] with N-Vinyl-2-pyrrolidinone (NVP) over the entire range of composition and at temperatures ranging from 298.15 K to 323.15 K at 0.1 MPa pressure, are reported in this investigation. From the experimental data, excess molar volumes (VmE), excess molar compressibilities (κsE), excess molar isentropic compressibilities (Ks,mE), excess speeds of sound (uE), and deviation in molar refraction (ΔRm) are calculated and fitted with Redlich-Kister polynomial smoothing equation. Excess molar volumes are predicted through PFP theory and the results are compared with experimental findings

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