Reaction Kinetics in Differential Thermal Analysis

✍ Scribed by Kissinger, H. E.

• Book ID: 111677090
• Publisher: American Chemical Society
• Year: 1957
• Tongue: English
• Weight: 558 KB
• Volume: 29
• Category: Article
• ISSN: 0003-2700
• DOI: 10.1021/ac60131a045

✦ Synopsis

The effects of the kinetics of reactions of the type solid + solid + gas on the corresponding differential thermal analysis pattern are explored. Curves of reaction rate vs. temperature for constant heating rates constructed b y analytical methods are used to demonstrate the effect of varying order of reaction. The information so obtained is used to analyze the differential thermal patterns of magnesite, calcite, brucite, kaolinite, and halloysite. The results of the differential thermal study agree with results obtained isothermally except in some specific cases. HEK a reaction occurs in differen-W tial thermal analysis (DTA), the change in heat content and in the thermal properties of the sample is indicated by a deflection, or peak. If the reac-