Application of DTA for investigation of hydration and dehydration of crystal hydrates

Autor: Konstant, Z. A., Vaivad, A. J.
Zdroj: Journal of Thermal Analysis and Calorimetry; June 1969, Vol. 1 Issue: 2 p177-181, 5p
Abstrakt: The results of the investigation of the hydration processes of the dehydration products of magnesium carbonate trihydrate are shown. The DTA curve was used to calculate the functionQ(t). It was found that the results were in good agreement with the equation $$\lg \frac{{Q - Q_0 }}{{Q_f - Q}} = k_1 t - k_2 $$ , whereQ is the heat evolved during the hydration timet;Q0,Qf are the same for the initial and final products, respectively,k1 andk2 are the hydration constants.
Databáze: Supplemental Index
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