Chem. J. Chinese Universities ›› 1988, Vol. 9 ›› Issue (11): 1150.

• Articles • Previous Articles     Next Articles

Salt Effect of Vapor-Liquid Phase Equilibrium in the System Formic Acid-Acetic Acid-Water-Sodium Acetate

Li Xi, Jiang Fuming, Kang Hongye, Luo Ruyi, Xu Qintang, Fan Shuguang   

  1. Department of Chemistry, Jilin University, Changchun
  • Received:1987-06-24 Online:1988-11-24 Published:1988-11-24

Abstract: Vapor-liquid equilibrium data (VLE) were measured by Otsuki-Wil-liams still for the formic acid-acetic acid-water-sodium acetate at 9.866×104Pa.2 mol/(kgsolv) of NaAc was used. The results show that the favorable effect ofNaAc is not only chemical action but also physicochemical action. It related totwo salts to the phenomena of salting-out, salting-in and anomalous behavior incomponents. Acording to VLBdata, we have drawn up the VLBcurve, the curveof the volatilities equal to 1 and the curve of the ralative volatilities equal tofor distinguishing and analysing the influence of salt effect.

Key words: Vapor-liguid equilibrium, Salt effect, Formic acid-acetic acid-water

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