Thermodynamics Research Center / ThermoML | Thermochimica Acta

Calibration of a low temperature calorimeter and application in the determination ofisobaric heat capacity of 2-propanol

Casas, L. M., Plantier, F., Pineiro, M. M., Legido, J. L., Bessieres, D.
Thermochim. Acta 2010, 507-508, 123-126
ABSTRACT
Nowadays, theexperimentalthermodynamiccharacterizationofsolventsinanextendedrangeoftem- peratures andpressuresisessentialforthedevelopmentofawidevarietyofindustrialapplications (refrigeration, reactors,pumping,etc.).Moreover,accurateexperimentaldataarealsothekeyforthe successful developmentandsubsequentbenchmarkingofthermodynamictheoreticalmodels.Inthe particular caseofisobaricheatcapacities,therearequitealotofreportedexperimentalhightempera- ture databut,ontheotherhand,lowtemperaturedataarepracticallyinexistentformostcompounds. Bearing thislimitationinmind,thepresentworkisfocusedonthedevelopmentofanewcalibration methodology forcalorimetricdeterminationofisobaricheatcapacitiesinliquidstateatlowtempera- tures. Forthispurpose,aCalvetcalorimeter,SETARAMBT2.15hasbeenused.Bymeansofthecalibration procedure explainedbelow,thiscalorimeterallowstodeterminephasetransitionsandthermodynamic properties inawiderangeoftemperature(233.15 473.15K)andpressure(0.1 100MPa).
Compounds
# Formula Name
1 C3H8O propan-2-ol
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 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Large sample (1 g) DSC
  • 45