Calcium Carbonate
Calcite, Limestone
- CAS
- 471-34-1
- EC
- 207-439-9
- Food Code
- E170
- Sectors
- Food & Nutrition, Pharma & Healthcare, Plastics & Polymers
Calcium carbonate is a white powder or granular mineral found naturally as limestone, chalk, or marble. It is chemically stable and insoluble in water.
Typical Properties
| Molecular formula | CH2O3.Ca |
|---|---|
| Molecular weight | 100.09 g/mol |
| Appearance | White powder |
| Form | random crystals |
| Color | White-beige to slightly beige-gray |
| Odor | Odorless |
| Melting point | 825 °C (decomp) |
| Boiling point | 242 °C @ Press: 760.000 Torr |
| Density | 2.8 g/cm³ |
| Water solubility | Insoluble |
| pH | 9.5-10.5 (100g/l, H2O, 20°C)(slurry) |
| HS code | 28365000 |
| Grades available | Food Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Request a QuoteWe respond within 1 business day.
Calcium Carbonate
Applications
Used as a filler in plastics, paints, and rubber, and as an antacid or calcium supplement in pharmaceuticals and food. It also serves as a pigment and neutralizing agent.
Safety & Risks
Non-toxic and inert. Avoid dust inhalation.
Packaging
Delivered in 25 kg or 1,000 kg bags. Store cool, dry, and sealed.