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Reference substances

Reference substances

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General information

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Reference substance information

IUPAC name:
Calcium sulfate, dihydrate
Synonyms
Names:
Alabaster Annaline C.I. Pigment white 25 Gypsum Gypsum stone Land and plaster Light spar Magnesia white Mineral white Native calcium sulfate Precipitated calcium sulfate Sainite Satin spar Sulfuric acid, calcium(2+) salt, dihydrate Terra alba
FGD gypsum
REA Gips

CAS information

CAS number:
10101-41-4

Molecular and structural information

Molecular formula:
CaSO4•2H2O
Molecular weight:
ca. 172.17
SMILES notation:
[Ca+2].[O-]S([O-])(=O)=O
InChl:
1/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
Structural formula:
Chemical structure