Thermodynamics of the b-Naphthol/Acetamide Phase Diagram by Thermal Analysis Techniques

TCE

The Chemical Educator

ISSN: 1430-4171 (electronic version)

Table of Contents

Abstract Volume 2 Issue 3 (1997), S1430-4171(97)03129-7

Thermodynamics of the b-Naphthol/Acetamide Phase Diagram by Thermal Analysis Techniques

A. Kim and J. L. Musfeldt*

State University of New York at Binghamton, Binghamton, New York 13902–6016

Published online: 25 August 1997

Abstract. Thermal analysis has been integrated into our physical chemistry laboratory course in order to allow students to systematically explore the role of composition in determining the physical properties of a binary mixture. The b-naphthol/acetamide system is presented as an interesting starting point for such a project, as it displays a temperature/composition phase diagram which deviates slightly from the simple two-component eutectic picture. Students compare their measured pure-component melting temperatures with literature values, rationalize the observed trends with mixing using freezing-point-depression arguments, and make a literature search of the unique morphological solid phases observed in analogous studies. This hands-on project is designed to be accompanied by a classroom discussion of multicomponent phase equilibria.

Key Words: Laboratories and Demonstrations; physical; instrumental

(*) Corresponding author. (E-mail: musfeld@binghamton.edu )

Article in PDF format (1.1 MB )

Supporting Materials:

The author has provided bitmap images of the laboratory manual for the binary phase-diagram experiment. All bitmap files are contained in the single compressed ZIP file named labman.zip - Editor

labman.zip (3.6 MB)10.1007/s00897970129b