Calcium Carbonate MSDS | Material Safety Data Sheet
- Identification
Product Name: Calcium Carbonate
Chemical Formula: CaCO₃
Trade Names: Limestone, Chalk, Calcite
Common Uses: Filler and extender in plastics, paper, paints, rubber, cable compounds, fertilizers, animal feed, pharmaceuticals, and food industries.
Supplier: HERBOCAL for Calcium Carbonate Industries
Address: Minya, Egypt
Contact Information:
Phone
Email Address

- Hazard Identification
Classification: Not classified as hazardous under GHS criteria.
Physical Hazards: None known.
Health Hazards: Inhalation of dust may cause mild irritation to the respiratory tract. Eye contact may cause slight mechanical irritation. Non-toxic if ingested in normal quantities.
Environmental Hazards: Not hazardous to the environment.
Signal Word: None required.
- Composition / Information on Ingredients
Substance: Calcium Carbonate
CAS Number: 471-34-1
EINECS Number: 207-439-9
Purity: ≥ 98%
Impurities: Naturally occurring trace minerals (e.g., MgCO₃, SiO₂).
- First Aid Measures
Inhalation: Move to fresh air; seek medical attention if symptoms persist.
Skin Contact: Wash with soap and water.
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes.
Ingestion: Rinse mouth and drink water if large amounts are swallowed; seek medical advice if discomfort occurs.
- Fire-Fighting Measures
Flammability: Non-flammable.
Suitable Extinguishing Media: Use media appropriate for surrounding fire.
Specific Hazards: None.
Protective Equipment for Firefighters: Standard fire protective clothing and equipment.
- Accidental Release Measures
Personal Precautions: Avoid creating or inhaling dust. Use suitable respiratory protection if airborne dust levels are high.
Environmental Precautions: Prevent material from entering drains or waterways.
Methods for Cleaning Up: Sweep or vacuum without generating dust. Dispose of material according to local regulations.
- Handling and Storage
Handling: Handle in well-ventilated areas to minimize dust. Avoid breathing dust.
Storage: Store in a dry, covered, and well-ventilated area. Keep container tightly closed to prevent contamination and moisture absorption.
- Exposure Controls / Personal Protection
Occupational Exposure Limit:
- OSHA PEL (Total Dust): 10 mg/m³ (TWA)
- ACGIH TLV (Respirable Dust): 5 mg/m³ (TWA)
Engineering Controls: Provide adequate local exhaust ventilation where dust may form.
Personal Protection:
- Respiratory: Dust mask if airborne dust is present.
- Eye: Safety goggles or glasses.
- Skin: Protective gloves for prolonged contact.
- Physical and Chemical Properties
| Property | Value |
| Appearance | White or off-white powder |
| Odor | Odorless |
| Melting Point | Decomposes at approx. 825°C |
| Density | ~2.7 g/cm³ |
| Solubility | Insoluble in water; soluble in acids with CO₂ release |
| pH (in water suspension) | 9–10 |
| Stability | Stable under normal storage and handling conditions |
- Stability and Reactivity
Chemical Stability: Stable under normal conditions.
Conditions to Avoid: Contact with strong acids and excessive heat.
Incompatible Materials: Acids (releases carbon dioxide gas).
Decomposition Products: Calcium oxide (CaO) and carbon dioxide (CO₂) above 825°C.
- Toxicological Information
Acute Toxicity: Non-toxic.
Skin Corrosion/Irritation: Not irritating under normal handling.
Eye Damage/Irritation: May cause mild mechanical irritation.
Respiratory Sensitization: None known.
Chronic Effects: Prolonged or repeated inhalation of dust may cause mild respiratory irritation.
- Ecological Information
Ecotoxicity: Not toxic to aquatic or terrestrial organisms.
Persistence and Degradability: Not applicable (inorganic substance).
Bioaccumulative Potential: None.
Mobility in Soil: Low.
Other Adverse Effects: None known.
- Disposal Considerations
Waste Disposal Method: Dispose of according to local, regional, and national regulations.
Hazard Classification: Not classified as hazardous waste.
- Transport Information
UN Number: Not applicable.
Transport Hazard Class: Non-hazardous.
Packing Group: Not applicable.
Environmental Hazards: None.
Transport Labels: None required.
- Regulatory Information
OSHA: Not hazardous.
REACH: Exempt (natural mineral).
TSCA: Listed.
Other Regulations: Not classified as dangerous under EU or UN transport rules.
- Other Information
Prepared by: HERBOCAL – Calcium Carbonate Industries
Location: Minya, Egypt
Date of Issue: October 2025
Disclaimer:
The information provided in this MSDS is believed to be accurate to the best of HERBOCAL’s knowledge. It does not constitute a warranty or guarantee. The user is responsible for ensuring safe handling, storage, and use of the product in accordance with applicable laws and regulations.

