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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
calcium sulfate

Inventory

EC number:
231-900-3
EC name:
Calcium sulfate
CAS number:
7778-18-9
CAS number:
7778-18-9
Synonyms
Names:
Anhydrite
Anhydrite (mineral name for the water free substance) Gypsum (mineral name for the dihydrate substance)
Calcium Sulphate
Drierite
Drierite
FDG Gypsum
FGD gypsum
Gypsum
Gypsum
REA Gips
Sulfuric acid, calcium salt (1:1)
Sulfuric acid, calcium salt (1:1)
calcium sulfate
calcium sulfate dihydrate calcium sulfate hemihydrate calcium sulfate anhydrous
calcium sulphate
gypsum
gypsum hemihydrate
stucco
sulfuric acid, calcium salt (1:1)
Identifier:
CAS number
10034-76-1
Identifier:
CAS number
10101-41-4
Identifier:
CAS number
14808-79-8
Identifier:
EC number
231-900-3
Identifier:
IUPAC name
Calcium Sulfate
Identifier:
IUPAC name
Calcium sulfate dihydrate
Identifier:
IUPAC name
Calcium sulfate dihydrate
Identifier:
IUPAC name
calcium sulfate
Identifier:
IUPAC name
calcium sulfate
Identifier:
IUPAC name
calcium sulfate dihydrate
Identifier:
IUPAC name
calcium sulphate
Identifier:
IUPAC name
calcium;sulfate
Identifier:
IUPAC name
calicum sulfate
Identifier:
IUPAC name
dicalcium disulfate hydrate
Identifier:
common name
Compactrol Gypsum dihydrate Mineral White
Identifier:
common name
gypse
Identifier:
common name
gypsum
Identifier:
other: InChl
(1S/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2)
Identifier:
other: InChl
1/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
Identifier:
other: Molecular formula
Ca.H2O4S
Identifier:
other: Molecular formula
Ca.H2O4S (Hill method) CaSO4 (CAS method)
Identifier:
other: Molecular formula
Ca.H2O4S, Ca SO4 * 2 H2O, Ca SO4 * 1/2 H2O, CaSO4
Identifier:
other: Molecular formula
Ca.H2O4S.2H2O
Identifier:
other: Molecular formula
Ca.O4S
Identifier:
other: Molecular formula
CaH2O4S
Identifier:
other: Molecular formula
CaO4S
Identifier:
other: Molecular formula
CaSO4 / CaO4S
Identifier:
other: Molecular formula
CaSO4.nH2O
Identifier:
other: Molecular formula
H2Ca2O9S2
Identifier:
other: Molecular formula
H4CaO6S
Identifier:
other: InChl
InChI=1/2Ca.2H2O4S.H2O/c;;2*1-5(2,3)4;/h;;2*(H2,1,2,3,4);1H2/q2*+2;;;/p-4
Identifier:
other: InChl
InChI=1/Ca.H2O4S.2H2O/c;1-5(2,3)4;;/h;(H2,1,2,3,4);2*1H2/q+2;;;/p-2
Identifier:
other: InChl
InChI=1/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
Identifier:
other: InChl
InChI=1S/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
Identifier:
other: InChl
InChI=1S/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 Yes Key: OSGAYBCDTDRGGQ-UHFFFAOYSA-L Yes InChI=1/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 Key: OSGAYBCDTDRGGQ-NUQVWONBAU
Identifier:
other: InChl
InChI=1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)/p-2
Identifier:
other: InChl
InChl=1/2Ca.2H2O4S.H2O/c;;2*1-5(2,3)4;/h;;2*(H2,1,2,3,4);1H2/q2*+2;;;/p-4
Identifier:
other: SMILES notation
Not available.
Identifier:
other: InChl
Not available.
Identifier:
other: SMILES notation
O.O.[O-]S(=O)(=O)[O-].[Ca+2]
Identifier:
other: Molecular formula
O4-S
Identifier:
other: SMILES notation
S(=O)(=O)([O-])[O-]
Identifier:
other: SMILES notation
S(=O)(=O)([O-])[O-].[Ca+2]
Identifier:
other: SMILES notation
[Ca++].[O-]S([O-])(=O)=O
Identifier:
other: SMILES notation
[Ca+2].[Ca+2].O.[O-]S(=O)(=O)[O-].[O-]S([O-])(=O)=O
Identifier:
other: SMILES notation
[Ca+2].[Ca+2].[O-]S(=O)(=O)[O-].[O-]S([O-])(=O)=O.O
Identifier:
other: SMILES notation
[Ca+2].[O-]S(=O)(=O)[O-]
Identifier:
other: SMILES notation
[Ca+2].[O-]S([O-])(=O)=O
Identifier:
other: SMILES notation
[Ca+2].[O-]S([O-])(=O)=O
Identifier:
other: SMILES notation
[Ca+2].[O-]S([O-])(=O)=O.O.O
Identifier:
other: SMILES notation
[O-]S(=O)(=O)[O-].[Ca+2]
Identifier:
other: SMILES notation
no data
Identifier:
other: InChl
no data
Calcium sulfate

Molecular and structural information

Molecular formula:
CaSO4
Molecular weight:
136.14
SMILES notation:
[Ca+2].[O-]S(=O)(=O)[O-]
InChl:
InChI=1/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
Structural formula:
Chemical structure

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common name
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