Thermodynamics of Amide + Amine Mixtures. 2. Volumetric, Speed of Sound and Refractive Index Data for N,N-Dimethylacetamide + N-Propylpropan-1-Amine, + N-Butylbutan-1-Amine, + Butan-1-Amine, or + Hexan-1-Amine Systems at Several Temperatures

Abstract

Data on density,  , speed of sound, c , and refractive index, D n , of binary systems containing N,N-dimethylacetamide (DMA) + N-propylpropan-1-amine (DPA) or + butan-1amine (BA) at 293.15 K, 298.15 K and 303.15 K, and + N-butylbutan-1-amine (DBA) or + hexan-1-amine (HxA) at 298.15 K are reported. A densimeter and sound analyzer Anton Paar DSA 5000 has been used for the measurement of  and c , whereas D n values have been obtained by means of a refractometer RFM970 from Bellingham+Stanley.

Thermodynamics of amide + amine mixtures. 4. Relative permittivities of N,N-dimethylacetamide + N-propylpropan-1-amine, + N-butylbutan-1-amine, + butan-1-amine, or + hexan-1-amine systems and of N,N-dimethylformamide + aniline mixture at several temperatures. Characterization of amine + amide systems using ERAS

“…In fact, inspection of Table 2 shows that, for example, some r ε values of aniline taken from the literature are not sure as they do not change consistently with temperature. In contrast, our r ε values correctly decrease with the increasing of temperature, and the density measurements are in good agreement with literature data (Table S1, supplementary material; see also [23,24] for the remaining amines).…”

“…where r ε is the permittivity of the mixture. The necessary volumetric properties were obtained from the literature [23,24,27] (see also footnote of Table 2). Figure S1, supplementary material).…”

“…In previous studies, we have reported data on density, ρ , speed of sound, c, and refractive index, D n , for the binary systems DMF [23], or DMA [24] + N-propylpropan-1amine (DPA) or + butan-1-amine (BA) at (293.15-303.15) K, and + N-butylbutan-1-amine (DBA) or + hexan-1-amine (HxA) at 298.15 K. These data have interpreted in terms of solutesolvent interactions and structural effects [23,24]. On the other hand, we have also reported permittivity measurements for the DMF + BA, + HxA, + DPA, + DBA systems at (293.…”

“…reported here are used together with the corresponding ρ and D n values available in the literature [23,24,27] to determine orientational and induced polarizabilities according to the Kirkwood-Fröhlich model [28][29][30][31] and the Balankina relative excess Kirkwood correlation factors [32], very useful quantities to gain insight into the dipole correlations present in the mixtures under consideration. Table 1 collects information regarding the source and purity of the pure compounds, which have been used with no further purification.…”

Noninvasive Determination of the Amount of Ethanol in Liquid Mixtures by Ultrasound Using Bilinear Interpolation Method

“…Ultrasound technologies have become increasingly widespread in many areas. One of these is using ultrasonic velocity measurements to analyze the contents of the mixture [1][2][3][4][5][6][7]. The determination of the changes in the number of substances and the amount of each substance contained in the solution is of great importance to monitor the processes, analyze the solution, and determine the contents of foods or mixtures.…”