Calcium Carbonate
Calcium carbonate is a common substance found in rocks as the minerals calcite and aragonite (most notably as limestone) extracted by mining or quarrying as so called Ground Calcium Carbonate (GCC). Alternatively, calcium carbonate is prepared from calcium oxide. Water is added to give calcium hydroxide then carbon dioxide is passed through this solution to precipitate calcium carbonate, referred to as precipitated calcium carbonate (PCC)
- Synonyms
- Argonite, Calcite, Chalk, Lime, Limestone, Marble, Ground Calcium Carbonate, GCC, Precipitated Calcium Carbonate, PCC, E170
- Chemical Formula
- CaCO3
- CAS Number
- 471-34-1
Characteristics
- Molar Weight
- 100.086 g/mol
- Melting Point
- 825 °C
- Boiling Point
- decomposes
- Density
- 2.71 g/cm³ (Calcite), 2.83 g/cm³ (Aragonite)
- Forms
- Grey, Powder, White
Uses and Applications
Key applications
- Baking
- Adhesives and Sealants
- Agricultural
- Household industrial
- Paint and Coatings
- Rubber
- Floor coverings
- Filler
- Metallurgy
- Plastics and polymers
- Food additive
- Nutritional supplements
- Water treatment
- Oil and Gas
- Pulp and paper
- Automotive
- Personal care
- Animal feed
Industries
- Oil & Gas
- Pharmaceuticals
- Polymers
- Pulp & Paper
- Cleaning
- Mining
- Cosmetics
- Coatings & Construction
- Water Treatment
- Food & Nutrition
- Animal Nutrition
- Lubricants
- Agrobusiness
- Chemical Processing
- Rubber