Advertisement

Journal of thermal analysis

, Volume 35, Issue 5, pp 1733–1736 | Cite as

Gas evolution as an artefact in differential scanning calorimetry

  • A. Hallbrucker
  • E. Mayer
Short Communication

Abstract

With CuSO4·5H2O as test system, it is demonstrated that the evolution of a gaseous product with thermal conductivity much lower than that of the purge gas in differential scanning calorimetry, leads to artefacts in the form of intense exotherms. This is due to a reduction of the heat flow from the sample to the environment.

Keywords

Polymer Physical Chemistry 5H2O Thermal Conductivity Inorganic Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. J. O'Neill, Anal. Chem., 36 (1964) 1238; 47 (1975) 630; 57 (1985) 2005.Google Scholar
  2. 2.
    Perkin-Elmer, Instructions for Model DSC 4 (1984), Section 3, p. 29.Google Scholar
  3. 3.
    M. A. Vannice, B. Sen and P. Chou, Rev. Sci. Instr., 58 (1987) 647.Google Scholar
  4. 4.
    B. Sen, P. Chou and M. A. Vannice, J. Catalysis, 101 (1986) 517.Google Scholar
  5. 5.
    J. A. Ghormley, J. Chem. Phys., 46 (1967) 1321; 48 (1968) 503.Google Scholar
  6. 6.
    E. Mayer and R. Pletzer, Nature, 319 (1986) 298.Google Scholar
  7. 7.
    D. Laufer, E. Kochavi and A. Bar-Nun, Phys. Rev. B., 36 (1987) 9219.Google Scholar
  8. 8.
    W. W. Wendtlandt, Anal. Chim. Acta, 27 (1962) 309.Google Scholar
  9. 9.
    W. W. Wendtlandt, Thermochim. Acta, 1 (1970) 419.Google Scholar
  10. 10.
    Thermal Analysis Newsletter, Nr. 7 (1967), Perkin-Elmer Corporation.Google Scholar
  11. 11.
    G.-W. Jang, R. Segal and K. Rajeshwar, Anal. Chem., 59 (1987) 684.Google Scholar

Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1989

Authors and Affiliations

  • A. Hallbrucker
    • 1
  • E. Mayer
    • 1
  1. 1.Institut für Anorganische und Analytische ChemieUniversität InnsbruckInnsbruckAustria

Personalised recommendations