Thermophysics of metal alkanoates. Heat capacities and thermodynamic properties of potassiumn-hexanoate from temperatures from 6 K to 600 K. VIII

The heat capacity morphology of potassium n -hexanoate from T= 6 K to T= 350 K was determined by equilibrium adiabatic calorimetry and by differential scanning calorimetry (d.s.c.) from T= 300 K to T= 635 K. The curve was characterized by peaks assumed to be associated with solid → solid first order...

Full description

Saved in:
Bibliographic Details
Published inThe Journal of chemical thermodynamics Vol. 33; no. 4; pp. 423 - 431
Main Authors Ngeyi, Stanley P., Malik, Imrana, Justice, Bruce H., Westrum, Jr, Edgar F.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.04.2001
Subjects
adiabatic calorimetry
heat capacity
metal alkanoates
thermophysics
heat capacity
adiabatic calorimetry
metal alkanoates
thermophysics
Online AccessGet full text

Cover

More Information
Summary:The heat capacity morphology of potassium n -hexanoate from T= 6 K to T= 350 K was determined by equilibrium adiabatic calorimetry and by differential scanning calorimetry (d.s.c.) from T= 300 K to T= 635 K. The curve was characterized by peaks assumed to be associated with solid → solid first order transformations at aboutT= 252.5 K and T= 325 K. A much sharper transition, also considered to be first order was observed at T= 497 K. Fusion was observed atT= 548 K. Tabulated experimental molar heat capacities and adjuvant smoothed thermodynamic functions derived by integration therefrom are presented at selected temperatures.
ISSN:0021-9614
1096-3626
DOI:10.1006/jcht.2000.0743