Abstract
Experiments were conducted for determination of the vapor-liquid equilibria in the ternary system water-formic acid-propionic acid at atmospheric pressure. A thermodynamic model which accounts for nonideal gas behavior and association effects is used for computing the liquid overall activity coefficients. These were correlated using the Redlich-Kister equation and the effect of the ternary constant was found insignificant. The boiling points revealed a ternary saddle-point azeotrope which boils at 107.50 °C and contains 42 mol % water, 54 mol % formic acid, and 4 mol % propionic acid.
| Original language | English |
|---|---|
| Pages (from-to) | 274-280 |
| Number of pages | 7 |
| Journal | Industrial and Engineering Chemistry Fundamentals |
| Volume | 15 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Jan 1976 |
ASJC Scopus subject areas
- General Engineering