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pro vyhledávání: '"Dick C. Engbrecht"'
Publikováno v:
Thermochimica Acta. 639:173-185
Gypsum wallboard has been used for over 100 years as a barrier to the spread of fire in residential and commercial structures. The gypsum molecule, CaSO4·2H2O, provides two crystalline waters that are released upon heating providing an endothermic e
Publikováno v:
Materials Performance and Characterization. 8:20180131
The core composition of gypsum wallboard is calcium sulfate dihydrate (CaSO4·2H2O) with varying impurities, additives, or both. This study compares two commercially calcined sources of hemihydrate (CaSO4·½H2O) from a natural source and a synthetic