Calcium Sulfate Dihydrate → Calcium Sulfate, Hemihydrate
Reaction equation
O.O.[S:3]([O-:7])([O-:6])(=[O:5])=[O:4].[Ca+2:8]>O>[OH2:4].[S:3]([O-:7])([O-:6])(=[O:5])=[O:4].[Ca+2:8].[Ca+2:8].[S:3]([O-:7])([O-:6])(=[O:5])=[O:4]Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
10 grams of calcium sulfate dihydrate fibers, prepared in accordance with Example 2, are heated in the autoclave in a water vapor atmosphere (at a pressure of 6 bars) for 6 hours at 130°, becoming substantially dehydrated and forming essentially monocrystalline calcium sulfate hemihydrate fibers.
Sources & evidence
- ORD record
- ord-e4e85a928878422baa3048857283ee96
- Source dataset
- uspto-grants-1981_06
- Patent number
- US04270954
Reaction notes
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