Calcium Sulfate Hemihydrate

Base Information

• Chemical Name: Calcium Sulfate Hemihydrate
• CAS No.: 26499-65-0
• Deprecated CAS: 31745-33-2
• Molecular Formula: Ca. H2 O4 S . 1/2 H2 O
• Molecular Weight: 290.2965
• European Community (EC) Number: 600-067-1,607-950-0
• ICSC Number: 1217
• UNII: 3RW091J48V
• DSSTox Substance ID: DTXSID90894798
• Wikipedia: Plaster of paris
• Wikidata: Q27115003
• NCI Thesaurus Code: C80892
• Mol file: 26499-65-0.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 Hemihydrate

Chemical Property:

• Melting Point: 163 °C
• Boiling Point: 330°Cat760mmHg
• Flash Point: °C
• Density: g/cm³
• Storage Temp.: -20°C
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 9
• Rotatable Bond Count: 0
• Exact Mass: 289.8392057
• Heavy Atom Count: 13
• Complexity: 62.2

Purity/Quality:

99%, ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Mineral Dusts -> Other Mineral Dusts
• Canonical SMILES: O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Ca+2].[Ca+2]
• Inhalation Risk: A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered.
• Effects of Short Term Exposure: May cause mechanical irritation.