In this work, densities of binary mixtures of {N, N-diethylformamide (DEF) + o-xylene, or + m-xylene, or + p-xylene}, have been determined under atmospheric pressure as a function of composition using a vibrating-tube densimeter. The temperatures studied were T (293.15, 303.15, 313.15, 323.15, 333.1
Volumetric properties and viscosities of the 2-pyrrolidone + 1,2-propanediol + water ternary system and its binary constituents at T = 313.15 K
β Scribed by Jalal Basiri Parsa; Mahboobeh Faraji
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 377 KB
- Volume
- 144
- Category
- Article
- ISSN
- 0167-7322
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π SIMILAR VOLUMES
The activity coefficient data were reported for (water + potassium chloride + DL-valine) at T = 298.15 K and (water + sodium chloride + L-valine) at T = 308.15 K. The measurements were performed in an electrochemical cell using ion-selective electrodes. The maximum concentrations of the electrolytes
Total vapour pressure measurements made by a modified static method for the ternary mixture (N -methylacetamide + ethanol + water) and for the binary mixture (N -methylacetamide + ethanol) at the temperature 313.15 K are presented. Different expressions for the excess Gibbs free energy are tested, a
Activity coefficients of sodium bromide in aqueous mixtures of sodium bromide and sodium acetate were determined by e.m.f. measurements at T = 298.15 K and the total ionic strengths of (0.1, 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0) mol β’ kg -1 . The experimental results were fitted using the Scatchard-Rush
## Densities of {xCH 15 K and T = 313.15 K, have been measured. From these densities, excess molar volumes were calculated and fitted to the Redlich-Kister equation for the binary mixtures and to the Jasinski, Cibulka, Singh, Pintos and Calvo equations, for the ternary system. The partial excess m