What is Calcium Sulphate

It is used for a variety of purposes including in building materials as a desiccant, in dentistry as an impression material, cast, or die and in medicine for immobilising. It exists in various forms and states of hydration. In the medical industry, it is often mixed with polymers which can then be used as a bone repair cement.

  • Synonyms: Gypsum, Phosphogypsum
  • INCI: Calcium Sulphate
  • Chemical Formula: CaSO4.2H2O
  • CAS Number: 7778-18-9

Product Specifications

Chemical Formula CaSO4.2H2O
CAS Number 7778-18-9
Molar Weight 136.134g/mol
Melting Point 1,460°C
Forms White powder
Grades Food Pharma
Variations Powder

Uses and Applications for Calcium Sulphate

Key Applications

  • Adhesives and Sealant Chemicals
  • Arts, crafts and hobby materials
  • Automotive care products
  • Building and construction materials
  • Cement filler
  • Medical


  • Water Treatment
  • Food and Nutrition
  • Polymers
  • Pharma
  • Oil & Gas
  • Cleaning
  • Lubricants
  • Cosmetics
  • Agriculture
  • Coatings & Construction

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