THE ENERGY OF HYDROGEN BONDING IN THE SYSTEM: ACETONE-BROMOFORM

A study of the equilibrium freezing-point diagram for the system acetone-bromoform shows that no solid-phase compound forms between acetone and bromoform. The diagram is of the simple eutectic type, the eutectic lying at −101° and 84 mole % acetone. The enthalpies of mixing have been determined for...

Full description

Saved in:
Bibliographic Details
Published inCanadian journal of chemistry Vol. 44; no. 8; pp. 917 - 924
Main Authors Campbell, A. N, Kartzmark, E. M
Format Journal Article
LanguageEnglish
Published Ottawa, Canada NRC Research Press 15.04.1966
Online AccessGet full text

Cover

More Information
Summary:A study of the equilibrium freezing-point diagram for the system acetone-bromoform shows that no solid-phase compound forms between acetone and bromoform. The diagram is of the simple eutectic type, the eutectic lying at −101° and 84 mole % acetone. The enthalpies of mixing have been determined for various compositions of mixture and the numerical value of ΔH (per mole of acetone or bromoform) extrapolated to infinite excess of bromoform or of acetone, to obtain the value for completely undissociated complex. This figure is −1.3 kcal per mole of complex (assumed mole to mole). The dipole moments, excess volumes of mixing, viscosities, and total and partial vapor pressures of the system have been measured. From these data, the excess free energy and excess entropy and other thermodynamic functions have been evaluated.
ISSN:0008-4042
1480-3291
DOI:10.1139/v66-134