Calcium Sulfate Dihydrate

Base Information

• Chemical Name: Calcium Sulfate Dihydrate
• CAS No.: 13397-24-5
• Deprecated CAS: 77030-59-2,70513-70-1
• Molecular Formula: CaSO4^.2H2O
• Molecular Weight: 154.16
• European Community (EC) Number: 600-148-1,927-377-2
• ICSC Number: 1734
• UNII: 4846Q921YM
• DSSTox Substance ID: DTXSID7047514
• Wikipedia: Alabaster
• Wikidata: Q30135771
• NCI Thesaurus Code: C65281
• RXCUI: 1310465
• Mol file: 13397-24-5.mol

Synonyms:Alabaster;Anhydrous Sulfate of Lime;Artificial Dental Stone;Calcium Sulfate;Calcium Sulfate (1:1), Dihydrate;Calcium Sulfate (1:1), Hemihydrate;Calcium Sulfate (2:1);Calcium Sulfate Dihydrate;Calcium Sulfate, Anhydrous;Calcium Sulfate, Dihydrate;Calcium Sulfate, Hemihydrate;Calcium Sulphate;Dental Gypsum;Dental Stone, Artificial;Drierite;Gypsite;Gypsum;Gypsum, Dental;Karstenite;Plaster of Paris;Stone, Artificial Dental

Chemical Property of Calcium Sulfate Dihydrate

Chemical Property:

• Appearance/Colour: White or nearly white, odorless, crystalline solid.
• Melting Point: 1450 °C
• Boiling Point: 330 °C at 760 mmHg
• Density: 2.32
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 171.9354499
• Heavy Atom Count: 8
• Complexity: 62.2

Purity/Quality:

99%, ^*data from raw suppliers

Drierite? with indicator, 8?mesh ^*data from reagent suppliers

Safty Information:

• Pictogram(s): T,N
• Hazard Codes: T,N
• Statements: 49-42/43-51/53-68-50/53-60
• Safety Statements: 53-22-36/37-45-60-61

MSDS Files:

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metals, Inorganic Compounds
• Canonical SMILES: O.O.[O-]S(=O)(=O)[O-].[Ca+2]
• Inhalation Risk: A nuisance-causing concentration of airborne particles can be reached quickly when dispersed.
• Effects of Short Term Exposure: May cause mechanical irritation.
• Effects of Long Term Exposure: Lungs may be affected by repeated or prolongated exposure to dust particles.
• Uses: Anhydrous: insoluble anhydrite is used in cement formulations and as a paper filler. Soluble anhydride, because of its strong tendency to absorb moisture, is useful as a drying agent for solids, organic liquids and gases; the desiccant used in laboratory and industry is known under the name Drierite. This material can be regenerated repeatedly and reused without noticeable decrease in its desiccating efficiency. The hemihydrate is used for wall plasters; wallboard; tiles and blocks for the building industry; moldings; statuary; in the paper industry. The dihydrate is used in the manufacture of portland cement; in soil treatment to neutralize alkali carbonates and to prevent loss of volatile and dissolved nitrogenous compounds by volatilization and leaching; for the manufacture of plaster of Paris, artificial marble; as a white pigment, filler or glaze in paints, enamels, pharmaceuticals, paper, insecticide dusts, yeast manufacture, water treatment, polishing powders; in the manufacture of sulfuric acid, CaC2, (NH4)2SO4, porous polymers. Pharmaceutic aid (in plaster casts).