Publikace: Calorimetric study of calcium nitrate tetrahydrate and magnesium nitrate hexahydrate
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Sádovská, Galina
Honcová, Pavla
Pilař, Radim
Oravova, Lucie
Honc, Daniel
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Springer
Abstrakt
The heat capacity of calcium nitrate tetrahydrate, and magnesium nitrate hexahydrate were determined from 234.15 K to melting temperature with point of view of energy storage. Determined values were used for the calculation of entropy and Gibbs energy in the experimental temperature range. Melting point and enthalpy of fusion was determined for both substances. Moreover, the kinetics of solid-solid phase transformation for magnesium salt was studied under non-isothermal conditions by DSC and the process was described using autocatalytical model.
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Klíčová slova
Calcium nitrate tetrahydrate, Magnesium nitrate hexahydrate, Heat capacity, Phase change materials, Kinetics, Autocatalytical model, Tetrahydrát dusičnanu vápenatého, Hexahydrát dusičnanu hořečnatého, Tepelná kapacita, Materiály s fázovou změnou, Kinetika, Autokatalytický model