VAPOR-LIQUID EQUILIBRIA FOR SINGLE WEAK ELECTROLYTE AQUEOUS SOLUTIONS IN DILUTE REGIONS

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

HIROSHI YOSHITOME¹  TAKESHI SAKO¹  TOSHIKATSU HAKUTA¹ 

[1] National Chemical Laboratory for Industry

关键词: Phase Equilibrium;    Electrolyte Solution;    Wilson Equation;    Margules Equation;    pH Effect;    Ammonia;    Formic Acid;    Acetic Acid;    Propionic Acid;   

DOI  :  10.1252/jcej.18.420

来源: Maruzen Company Ltd

【 摘 要 】

References(16)Cited-By(2)Vapor-liquid equilibria (VLE) for single electrolyte systems NH3-H2O, HCOOH-H2O, CH3COOH-H2O and C2H5COOH-H2O were measured at 101.3kPa in dilute electrolyte regions. The experimental data were compared with the results calculated by the Wilson equation or the Margules equation which were extended to the whole concentration range of weak electrolyte, and good agreement was found for the present systems. Further, the effect of pH on VLE was measured for NH3-H2O and CH3COOH-H2O systems at 101.3 kPa and the pH effect was predicted by using the Wilson equation mentioned above. Agreement between calculated and experimental results was very good.

【 授权许可】

Unknown