Calcium Sulfate Dihydrate → Calcium Sulfate, Hemihydrate

HRID 346405

Reaktionsgleichung

Reaktionsgleichung von HRID 346405
O.O.[O-:3][S:4]([O-:7])(=[O:6])=[O:5].[Ca+2:8]>O>[OH2:3].[S:4]([O-:7])([O-:6])(=[O:5])=[O:3].[Ca+2:8].[Ca+2:8].[S:4]([O-:7])([O-:6])(=[O:5])=[O:3]

Komponenten

3

Edukt 1

HCID 24928Calcium Sulfate Dihydrate2×

Produkt 1

HCID 3033839Calcium Sulfate, Hemihydrate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

The calcination (or dehydration) step in the manufacture of stucco is performed by heating the land plaster, and generally can be described by the following chemical equation which shows that heating calcium sulfate dihydrate yields calcium sulfate hemihydrate (stucco) and water vapor: CaSO4.2H2O+heat#CaSO4.½H2O+1 ½H2O.

Quellen und Nachweise

ORD-Eintrag
ord-6e633223498d4bff9b206e572e6a7b68
Quelldatensatz
uspto-grants-2007_02
Patentnummer
US07172403B2

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