Magnesium Carbonate
Magnesite, Carbonic Acid Magnesium Salt, MgCO3.
- CAS
- 546-93-0
- EC
- 208-915-9
- Sectors
- Pharma & Healthcare, Food & Nutrition, Personal Care & Cosmetics
Magnesium Carbonate (CAS 546-93-0) is a white, odorless inorganic salt supplied in Food Grade and USP/BP Grade, valued for its high-absorbency and free-flowing properties, and used as an anti-caking agent, antacid, mineral supplement, and moisture-absorbing cosmetic ingredient. In the pharmaceutical sector, it serves as a reliable antacid and mineral supplement due to its excellent bioavailability . The product is chemically stable and maintains a high level of whiteness, contributing to the aesthetic quality of cosmetic formulations. The material is also utilized in industrial settings as a smoke suppressant and reinforcing filler in rubber and plastics. Its Technical Grade variants provide high thermal stability, making it useful in high-temperature manufacturing processes.
Typical Properties
| Molecular formula | CH2O3.Mg |
|---|---|
| Molecular weight | 84.31 g/mol |
| Appearance | White or almost white powder. |
| Form | Solid |
| Color | White |
| Odor | at 100.00?%. odorless |
| Melting point | 990 °C |
| Density | 3.0 g/cm³ |
| HS code | 28369910 |
| Grades available | Pharma Grade, 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.
Magnesium Carbonate
Applications
- [Food Processing]: Functions as an anti-caking agent in table salt and as a drying agent in powdered food mixes.
- [Pharmaceutical Formulations]: Used as an active ingredient in antacid tablets and as a magnesium source in dietary supplements.
- [Personal Care Products]: Incorporated into face powders and deodorants for its superior moisture-absorption and matting effects.
Safety & Risks
Generally recognized as safe (GRAS); however, may cause Respiratory Irritation if dust is inhaled. Wear Dust Masks, Safety Glasses, and Gloves to prevent localized skin dryness.
Packaging
Available in 25 kg Multi-layer Bags, Fiber Drums, and customized small-format packaging.