Abstract
The vapor-liquid equilibria behavior of two ternary mixtures, water-formic acid-acetic acid and water-acetic acid-propionic acid, was studied experimentally in a Dvorak and Boublik recirculation still at 760 mmHg. A ternary saddle point azeotrope exists in the first mixture which boils at 107.0 °C and contains 36.3 mole % water, 46.9 mole % formic acid, and 16.8 mole % acetic acid. No ternary azeotrope exists in the second mixture. A thermodynamic model suggested in the past, which accounts for nonideal gas behavior and association effects in a multicomponent mixture, was applied for analysis of the data.
| Original language | English |
|---|---|
| Pages (from-to) | 253-260 |
| Number of pages | 8 |
| Journal | Journal of Chemical and Engineering Data |
| Volume | 22 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1 Jul 1977 |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering