Material Safety Data Sheet for Calcium Carbonate

1. Product Identification Calcium carbonate (CaCO₃) is a white, odorless powder or crystalline solid that occurs naturally in rocks, shells, and corals. It is widely used in various applications, including construction, pharmaceuticals, and food industries.

2. Hazard Identification Calcium carbonate is generally regarded as a non-hazardous material. When handling it, however, precaution is recommended. Dust can cause mild respiratory discomfort or irritation when inhaled. Prolonged exposure may lead to respiratory issues, although acute toxicity is low.

3. Composition/Information on Ingredients Calcium carbonate is the primary ingredient with a molecular weight of 100.09 g/mol. It may contain trace amounts of impurities such as silica or iron oxides depending on its source.

4. First-Aid Measures In the event of accidental inhalation, move to fresh air and seek medical attention if symptoms persist. If contact with skin occurs, wash thoroughly with soap and water. In case of eye contact, rinse immediately with plenty of water for at least 15 minutes and consult a physician if irritation persists.

5. Fire-Fighting Measures Calcium carbonate is not flammable. However, in a fire, it may produce calcium oxide and carbon dioxide. Use extinguishing media suitable for surrounding materials. Firefighters should wear self-contained breathing apparatus to protect against gases.

6. Accidental Release Measures In the event of a spill, clear the area and avoid creating dust. Use a vacuum or damp cloth to clean and collect the material. Dispose of in accordance with local regulations.

7. Handling and Storage Store calcium carbonate in a cool, dry place. Use appropriate personal protective equipment (PPE) such as gloves and masks to minimize exposure. Ensure good ventilation during handling to reduce dust exposure.

8. Exposure Controls/Personal Protection The permissible exposure limit is generally considered to be 10 mg/m³ for respirable dust. Ventilation should be adequate to maintain dust levels below this limit. When necessary, use dust masks and protective goggles.

9. Stability and Reactivity Calcium carbonate is stable under normal conditions. It reacts with strong acids to release carbon dioxide gas.

Understanding the Material Safety Data Sheet (MSDS) for calcium carbonate is crucial for ensuring safety during handling and usage. By following proper safety practices, users can mitigate risks associated with its dust and ensure a safe working environment.