Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Design and construction of an adiabatic calorimeter for samples of less than 1 cm3 in the temperature range T=15 K to T=350 K

Lang, B. E.[Brian E.], Boerio-Goates, J.[Juliana], Woodfield, B. F.[Brian F.]
J. Chem. Thermodyn. 2006, 38, 12, 1655-1663
ABSTRACT
A small-scale adiabatic calorimeter has been constructed as part of a larger project to study the thermodynamics of nanomaterials and to facilitate heat capacity measurements on samples of insufficient quantity to run on our current large-scale adiabatic apparatus. This calorimeter is designed to measure the heat capacity of samples whose volume is less than 0.8 cm3 over a temperature range of T = 13 K to T = 350 K. Heat capacity results on copper, sapphire, and benzoic acid show the accuracy of the measurements to be better than +-0.4% for temperatures higher than T = 50 K. The reproducibility of these measurements is generally better than +-0.25%.
Compounds
# Formula Name
1 Cu copper
2 Al2O3 aluminum oxide (Al2O3)
3 C7H6O2 benzoic acid
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal
  • Temperature, K; Crystal
  • Pressure, kPa; Crystal
  • Crystal
  • Small (less than 1 g) adiabatic calorimetry
  • 90
  • POMD
  • 2
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal
  • Temperature, K; Crystal
  • Pressure, kPa; Crystal
  • Crystal
  • Small (less than 1 g) adiabatic calorimetry
  • 56
  • POMD
  • 3
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal
  • Temperature, K; Crystal
  • Pressure, kPa; Crystal
  • Crystal
  • Small (less than 1 g) adiabatic calorimetry
  • 77