Gas evolution as an artefact in differential scanning calorimetry
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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.
KeywordsPolymer Physical Chemistry 5H2O Thermal Conductivity Inorganic Chemistry
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- 1.M. J. O'Neill, Anal. Chem., 36 (1964) 1238; 47 (1975) 630; 57 (1985) 2005.Google Scholar
- 2.Perkin-Elmer, Instructions for Model DSC 4 (1984), Section 3, p. 29.Google Scholar
- 3.M. A. Vannice, B. Sen and P. Chou, Rev. Sci. Instr., 58 (1987) 647.Google Scholar
- 4.B. Sen, P. Chou and M. A. Vannice, J. Catalysis, 101 (1986) 517.Google Scholar
- 5.J. A. Ghormley, J. Chem. Phys., 46 (1967) 1321; 48 (1968) 503.Google Scholar
- 6.E. Mayer and R. Pletzer, Nature, 319 (1986) 298.Google Scholar
- 7.D. Laufer, E. Kochavi and A. Bar-Nun, Phys. Rev. B., 36 (1987) 9219.Google Scholar
- 8.W. W. Wendtlandt, Anal. Chim. Acta, 27 (1962) 309.Google Scholar
- 9.W. W. Wendtlandt, Thermochim. Acta, 1 (1970) 419.Google Scholar
- 10.Thermal Analysis Newsletter, Nr. 7 (1967), Perkin-Elmer Corporation.Google Scholar
- 11.G.-W. Jang, R. Segal and K. Rajeshwar, Anal. Chem., 59 (1987) 684.Google Scholar