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Substance
ID:170491
Structure
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Functional Group
Text
ID:126356
Calcium sulfate
Wikipedia.org
ID: Calcium_sulfate
Names and Identifiers
Synonyms
Plaster of Paris
Drierite
Gypsum
Calcium sulfate
IUPAC name
calcium sulfate
IUPAC Traditional name
calcium sulfate
Registration numbers
CAS Number
7778-18-9
Chemspider ID
22905
PubChem CID
24928
Unique Ingredient Identifier
E934B3V59H
Wikipedia Title
Calcium_sulfate
CHEBI ID
31346
KEGG ID
D09201
Properties
Physical Property
Solubility
0.21g/100ml at 20 °C (anhydrous)
0.24 g/100ml at 20 °C (dihydrate) in water
slightly soluble (dihydrate) in glycerol
Std enthalpy of formation
-1433 kJ/mol
Std molar entropy
107 J·mol
-1
·K
-1
Flash Point
Non-flammable
Apperance
white solid
Melting Point
1460 °C (anhydrous)
Solubility Product (<i>K</i><sub>sp</sup>)
4.93 × 10
-5
mol
2
L
-2
(anhydrous)
3.14 × 10
-5
(dihydrate)
p𝘒ₐ
10.4 (anhydrous)
7.3 (dihydrate)
Odor
odorless
Density
2.96 g/cm
3
(anhydrous)
2.32 g/cm
3
(dihydrate)
Safety Information
EU Index
Not listed
RTECS
WS6920000
NFPA704
0
1
0
Molecule Details
Molecular Spectra
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References
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