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The Chemical Educator

ISSN: 1430-4171 (electronic version)

Table of Contents

Abstract Volume 18 (2013) pp 031-032
DOI 10.1007/s00897132464a

A Simple Reflux Assembly Modification For Use In Vapor-Liquid Phase Equilibrium Experiments

Guangnan Ou* and Biyan He

School of Bioengineering, Jimei University, Xiamen 361021, China, Received August 23, 2012.
Accepted January 25, 2013.

Published: 22 Febuary 2013

Abstract. A reflux assembly with easy operation and construction was designed for liquid-vapor equilibrium measurements. Isobaric vapor-liquid equilibrium measurements on cyclohexane-ethanol system were performed and compared with the published data on this system. The setup provides sufficiently satisfactory vapor-liquid equilibrium data in a relatively short experimental time.

Key Words: Laboratories and Demonstrations; physical chemistry; equilibrium; phase diagram; learning/manipulatives; precipitation/solubility

(*) Corresponding author. (E-mail:

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