Dielectric response of methyl isobutyl ketone (MIBK) in apolar solvents: solute-solvent interactions

Abstract

Dielectric constants of binary mixtures of MIBK, an extractant used in nuclear energy industry, with six apolar solvents i.e. benzene, dioxane, cyclohexane, carbon tetrachloride, p-xylene and n-heptane have been measured at 455 kHz. The data are used to evaluate the Eyring's structural parameter, G*, in these systems to assess the nature of non-specific solute-solvent interaction. The value of G* is found to be influenced by the nature of the solvent.

Relaxation Study of N-Submitted Amides with Alcohol Mixtures by Time Domain Reflectometry

“…Also the 1-decanol-amide systems have lower e E and higher (1/e) E negative values than that of 1-butanol-amide, 1-pentanol-amide systems, revealing that the tendency of complex formation is stronger in 1-pentanol than that of 1-butanol. Because of steric hindrance, it is likely that long chain alcohols will have greater probability of complex formation due to head tail linkage, whereas for relatively smaller alcohols, the tendency is weakened due to switching mechanism prevalent in alcohol system 25 . Therefore, one would expect that the strongest intermolecular hydrogen bonds would be formed between the C-O group of NMA and the OH proton of 1-pentanol and the weakest between the C-O group of NMA and OH proton of 1-butanol and similar results are obtained in case of DMA-alcohols systems 15 .…”

“…N-methylacetamide, N,N-dimethylacetamide and the respective alcohol were used as calibrating liquids. The experimental values of e* are fitted with the Debye equation 25 ... (2) with e 0 , e ∞ , and t as fitting parameters. A nonlinear least squares fit method 26 was used to determine the values of dielectric parameters.…”

Dielectric Studies on Binary Mixtures of Diethyl Ether (DEE) in Polar Solvents

“…The dielectric constant measurements for the pure liquids as well as mixtures were carried out by wavemeter oscillator combination [8] at 455 kHz. The device was standardized with liquids of known dielectric constant [9].…”

Dielectric relaxation study of aniline,N-methylaniline andN,N-dimethylaniline and alcohol in 1, 4-dioxane using picosecond time-domain reflectometry

“…[7][8][9][10][11][12] Patil et al [13] obtained the complex dielectric spectra for alcohols and aniline binary mixtures and reported that ε 0 and τ decrease with increasing concentration of aniline in the alcohol. Fattepur et al [14] measured complex permittivity spectra for aniline-methanol mixture.…”