Réaction #433587

ord-6e633223498d4bff9b206e572e6a7b68

Équation de réaction

O.O.O=S(=O)([O-])[O-].[Ca+2]
land plaster
O.O.O=S(=O)([O-])[O-].[Ca+2]
calcium sulfate dihydrate
→
O.O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Ca+2].[Ca+2]
calcium sulfate hemihydrate

Réactifs

O.O.O=S(=O)([O-])[O-].[Ca+2]
land plaster
O.O.O=S(=O)([O-])[O-].[Ca+2]
calcium sulfate dihydrate

Réactifs

Aucun

Solvants

O
water

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Mode opératoire

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.

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US07172403B2uspto-grants-2007_02