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Exothermic effects in soils during thermal analysis

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Abstract:

This paper addresses the application of thermal analytical methods (DTA/DSC/TG/MS) in soil investigations, especially the interrelation of exothermic effects and analytical or preparative parameters. For the superimposed decomposition/oxidation reactions of siderites, FeCO3, the heating rate is shown to have a decisive influence because low heating rates tend to suppress the endothermic effect. In mixtures of small amounts of organic matter (glucose and starch) with talc, the phyllosilicate acts as a catalyst by influencing the intensity of combustion of the organic matter.

Keywords: EXOTHERMIC; SIDERITE; SOILS; THERMAL ANALYSIS

Document Type: Research Article

DOI: http://dx.doi.org/10.1180/0009855023740060

Publication date: December 1, 2002

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minsoc/cm/2002/00000037/00000004/art00002
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