Thermodynamic Behavior of Mixtures. 3. Mixtures of Acetonitrile with Dimethylacetamide, Dimethyl Sulfoxide, Nitrobenzene, and Methanol at 25 °C

Abstract

Ultrasonic velocities (u), densities (ρ), viscosities (η), relative permittivities (ε), and refractive indicies (n D) of mixtures of acetonitrile with dimethylacetamide, dimethyl sulfoxide, nitrobenzene, and methanol have been measured at 25 °C. From u, ρ, and η, isentropic compressibilities (κs), and its deviation from ideal behavior and excess viscosities (Δη) have been computed. From n D and ε, the Kirkwood correlation factor, g, has also been evaluated.

Limiting partial molar volumes of tetra- -alkylammonium perchlorates in , - dimethylacetamide, triethylphosphate and dimethyl sulfoxide at= 298.15 K

“…(3) The density value of (0.936357 ± 0.000005) g · cm −3 for N ,N -dimethylacetamide at T = 298.15 K compares well with the values of 0.936076 g · cm −3 and 0.93659 g · cm −3 published by De Visser (4) and Bakshi. (5) Unfortunately, accurate density data for triethylphosphate are not available in the literature at T = 298.15 K. However, the value of (1.064182 ± 0.000005) g · cm −3 determined in the present work seems to be better than the value of 1.06826 g · cm −3 obtained by French at T = 296 K. (6) It has been found that the solubility of tetramethylammonium perchlorate in triethylphosphate is too small to yield density data that will lead to accurate values of the apparent molar volumes.…”

Electromigration of a heteroconjugated imidazole–acetate complex in ACN

“…Z m is the viscosity of the corresponding solvent mixture and Z 0 is the viscosity of pure ACN (viscosities were taken from ref. [51][52][53][54] and are all at 25.07C). The viscosity corrected mobilities (solid symbols) are presented in Fig.…”

“…3. A small amount of MeOH or acetone in the BGE decreases the viscosity of the solution [52][53][54], and, thus, increases the mobility of the complex. Accordingly, the viscosity corrected mobilities are smaller than the uncorrected ones.…”

Coordination phenomena of alkali metal, alkaline earth metal, and indium ions with the 1,3,6-naphthalenetrisulfonate ion in protic and aprotic solvents

“…The permittivity values of the binary solvent systems, MeCN-H 2 O and MeCN-MeOH, have been interpolated from the data from Ref. [44] and [45], respectively. …”