کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
674076 | 1459538 | 2012 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Study of magnesium chloride hexahydrate as heat storage material Study of magnesium chloride hexahydrate as heat storage material](/preview/png/674076.png)
Heat capacity of MgCl2·6H2O was determined in temperature range from 298.15 to 401.15 K. Polynomial function was used to fit temperature dependence of heat capacity up to 371.15 K and corresponding thermodynamic functions (HT − H298.15, ST − S298.15, GT − G298.15) were calculated. Thermal stability test (50 heating/cooling cycles) of pure MgCl2·6H2O shows supercooling about 37 K, thus some nucleating agents were tested. Addition of SrCO3 (1 wt%) and Sr(OH)2 (0.5 wt%) almost fully suppresses the supercooling while addition of Mg(OH)2 decreases supercooling by 19 K.
► We measured heat capacity of magnesium chloride hexahydrate.
► Thermal stability of magnesium chloride hexahydrate was tested using DSC.
► Some nucleating agents were applied to suppress supercooling in magnesium chloride hexahydrate.
Journal: Thermochimica Acta - Volume 546, 20 October 2012, Pages 81–86