Vapour pressures of (butanenitrile + propan-1-ol or propan-2-ol) at temperatures T between 278.15 K and 323.15 K were measured by a static method. Excess molar enthalpies and volumes were also measured at T=298.15 K. Following Barker's method, the activity coefficients and the excess molar Gibbs fre
Excess molar volumes of (dimethylsulfoxide + propan-2-ol, or propan-1,2-diol, or propan-1,2,3-triol) atT=303.15 K
β Scribed by A.K. Nain; A. Ali; M. Alam
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 124 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0021-9614
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β¦ Synopsis
As a continuation of our earlier studies Ε½1 α 3. on non-aqueous binary mixtures of highly polar liquids, we have obtained excess molar volumes of dimethylsulfoxide
π SIMILAR VOLUMES
, measured with a flow microcalorimeter at the temperature 298.15 K, are reported. The experimental results have been correlated with polynomial equations and compared with those calculated from an association model based on mole-fraction statistics having binary and ternary parameters.
Excess molar heat capacities and excess molar volumes determined at the temperature 298.15 K are reported for binary mixtures of (propan-2-ol, or butan-2-ol, or pentan-2-ol, or pentan-3-ol, or 2-methylbutan-2-ol + n-heptane). Excess molar heat capacities show a curve with an inflection point at x (a
The densities of the mixtures (hexane or cyclohexane+propan-2-ol or butan-2-ol) at the temperatures (288.15 and 298.15) K have been measured using a vibrating-tube densitometer. Excess molar volumes V E m were calculated. The results were described by means of the ERAS model. All mixtures exhibit po
The excess molar enthalpies H E m have been measured for mixtures of pyrrolidin-2-one with methanol, or ethanol, or propan-1-ol, or butan-1-ol, or pentan-1-ol over the whole composition range at T = 303.15 K. The H E m values are positive for all the mixtures over the whole mole fraction range excep