From the emJmeasurements of the cell Pt/Zn(Hg)/ZnC12, H,O, organic co-solvent/AgCl/Ag the standard emf of the cell have been determined for dioxan (IO,20 and 30 wt %), acetone (1420 and 30 wt'x) and acetic acid (10, 20, 30, 50, 70 and 90 wt"A) mixtures with water at 298 K. These data were used in ca
Thermodynamic characterization of vapour—liquid equilibria of mixtures acetic acid—dimethylacetamide and water—dimethylacetamide
✍ Scribed by A. Carli; S. Di Cave; E. Sebastiani
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 595 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
Vapour-liquid equilibria of the systems acetic acid-dimethylacetamide and water-dimethylacetamide, relevant to the industrial manufacture of the amide, have been investigated experimentally. Data obtained from many determinations carried out at different pressures have been treated, taking into account all the deviations from ideality both in the liquid and in the vapour phase. The activity coefficients have been correlated vs. the composition and the temperature through the Redlich-Kister equations. The excellent agreement between experimental and recalculated points makes the results highly dependable for a correct prediction of the equilibrium under any other condition.
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The vapour-hqmd eqmhbrla of the system acetlc acid-toluene have been modelled both by extstmg methods and by a new model mcorporatmg a concentration dependent hquld phase association constant The vahdtty of the models was tested by carrying out Barker fits on the Isothermal data avadable m the liter