Advertisement

Journal of Thermal Analysis and Calorimetry

, Volume 133, Issue 2, pp 1173–1179 | Cite as

Enthalpy of vaporization measurements by calorimetric techniques

Saturated vapor pressures of perfluorooctylbromide
  • Larisa L. PashchenkoEmail author
  • Anna I. Druzhinina
Article

Abstract

Enthalpies of vaporization, \( \Delta _{\text{vap}} H^{\circ }_{298} \), were determined for perfluorooctyl-1-bromide (PFOB) at the temperature 298.15 K. Measurements were performed on an adiabatic vaporization calorimeter for the first time. Saturated vapor pressures are determined for PFOB by an ebulliometry method in the temperature range from 329 to 414 K. A second-order group additivity method has been applied to predict the vaporization enthalpies of some perfluorocompounds. The contributions of methyl, isopropyl, octyl and bromo group to the vaporization enthalpies of the perfluorocarbons derivatives are estimated and aimed at either prediction of properties of fluids.

Keywords

Enthalpies of formation and vaporization Vapor pressures Vaporization calorimeter 

References

  1. 1.
    Sole-Violan L, Devall B. Excess thermodynamic functions of mixtures of fluorocarbons with fluorocarbon–hydrocarbon compounds. New J Chem. 2004;28:1526–30.CrossRefGoogle Scholar
  2. 2.
    Swietoslawski W. Ebulliometric measurements. New York: Reinhold; 1945.Google Scholar
  3. 3.
    Varushchenko RM, Bulgakova LL, Druzhinina AI, Mirzabekyants NS, Makarov KN. In: Beloyartzev F, editors. Perfluorinated hydrocarbons in biology and medicine. Pushchino: AS USSR; 1980. p. 30–44.Google Scholar
  4. 4.
    Pitzer KS, Curl RF. Volumetric and thermodynamic properties of fluids. J Am Chem Soc. 1957;79:2369–70.CrossRefGoogle Scholar
  5. 5.
    Boublik T, Fried V, Hala E. The vapor pressures of pure substances. New York: Academic Press; 1984.Google Scholar
  6. 6.
    Pedley JB. Thermochemical data and structures of organic compounds. Vol 1.Texas (US): Chapman and Hall; 1994.Google Scholar
  7. 7.
    Reid RC, Prausnitz JM, Sherwood IK. The properties of gases and liquids. New York: McGraw Hill; 1977. p. 87.Google Scholar
  8. 8.
    Askadskij AA, Matveev YuI. Chemical structure and physical properties of polymers. Moscow: Science; 1983.Google Scholar
  9. 9.
    Benson SW. Thermochemical kinetics. New York: Wiley; 1968.Google Scholar
  10. 10.
    Sieranski T, Kruszynski R. Magnesium sulphate complexes with hexamethylenetetramine and 1, 10-phenanthroline. J Therm Anal Calorim. 2012;109:141–52.CrossRefGoogle Scholar
  11. 11.
    Wieser ME. Atomic weights of the elements (IUPAC technical report). Pure Appl Chem. 2006;78:2051–66.CrossRefGoogle Scholar
  12. 12.
    Riess LG, Blank M. Solubility and transport phenomena in perfluoro chemicals repellant to blood substitution and other biomedical applications. Pure Appl Chem. 1982;54:2383–406.CrossRefGoogle Scholar
  13. 13.
    Ciecierska E, Jurczyk-Kowalska M, Bazarnik P, Kowalski M, Krause S, Lewandowska M. The influence of carbon fillers on the thermal properties of polyurethane foam. J Therm Anal Calorim. 2016;123:283–91.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  1. 1.Department of ChemistryM.V. Lomonosov Moscow State UniversityMoscowRussia

Personalised recommendations