Excess Volumes of N,N-Dimethylformamide with Ketones at 303.15 K

Abstract

Excess volumes, V E, of binary liquid mixtures of N,N-dimethylformamide with methyl propyl ketone, diethyl ketone, methyl isobutyl ketone, methyl isopropyl ketone, and cyclohexanone at 303.15 K have been measured with a dilatometer. Excess volumes are negative for the systems of N,N-dimethylformamide with methyl propyl ketone, diethyl ketone, methyl isobutyl ketone, and methyl isopropyl ketone and are positive for N,N-dimethylformamide with cyclohexanone at 303.15 K.

Molecular interactions between amine and cyclic ketones at different temperatures

“…Hence, N,Ndiethylaniline is a good electron pair donor to exhibit specific interactions between them. This type of similar trend was observed for high polar solvent of N,N-dimethylformamide with ketones [23]. Further, the positive values for the systems containing cyclohexanone and 2-methylcyclohexanone in the present study suggest that there is no existence of specific interactions between unlike molecules [24].…”

Volumetric properties of (N,N-dimethylformamide+aliphatic diethers) at temperatures ranging from (298.15 to 358.15)K

“…The excess volumes of DMF in mixtures with water [4,6], substituted benzenes [7], aniline and benzonitrile [8], benzyl alcohol and acetophenone [9], ethane-1,2-diol [10], 1-alkanols [11], ethanol [12], propylene carbonate [13], 2-propoxyethanol, and 2-iso-propoxyethanol [14], or ketones [15] have been already reported in the literature. However, no effort appears to have been made to collect the densities and the excess volumes for the mixtures of N,Ndimethylformamide with diethers and there is no evidence for specific interactions between DMF with diethers.…”

“…In order to extend the study of polar amide (DMF) containing non-polar ethers, we measured the densities of DMF {x 1 HCON(CH 3 ) 2 } with diethers (x 2 R-O-R), in the present study, over the whole composition range at T = (298. 15 , and dipentyl ether (99+%) of highest purity were obtained from Acros (USA) and used without further purification. The purity of the solvents was assessed by comparing their measured densities, which were in good agreement with the literature values [5], as can be seen in table 1.…”

Thermodynamic investigation of N,N-dimethylformamide/toluene binary mixtures in the temperature range from 278.15 to 293.15K

“…A fundamental understanding of the behavior of DMF in its binary mixtures with polar or non-polar solvents is important from the technical and engineering point of view. A detailed search in the literature reveals that systematic investigations have been carried out on the excess thermodynamic properties of binary mixtures of DMF with nitrobenzene [2], 1,2-ethanediol [3], mesitylene [4], glycerol [5], water [6], alkanenitriles [7], ketones [8], ethylbenzene, chlorobenzene, bromobenzene [9], methanol [10], 2-ethoxyethanol [11], propylene carbonate [12], 2-propoxyethanol, 2-isopropoxyethanol [13], benzyl alcohol, acetophenone [14], aniline and benzonitrile [15]. In these reports, much attention has been given to the extent of intermolecular interactions.…”