Product Name: Calcium Carbonate
Chemical Formula: CaCO3
CAS Number: 471-34-1
Synonyms: Limestone, Chalk, Whiting, Calcite
Recommended Use: Filler, pH regulator, dietary supplement, construction material
Supplier and Manufacturer: Contact information provided with shipment or available through procurement resources
Emergency Contact Number: 24-hour emergency phone line, information included with bulk shipments
GHS Classification: Not considered hazardous under GHS guidelines
Physical Hazards: Slippery when spilled
Health Hazards: Inhalation of dust can irritate respiratory system, skin, and eyes
Environmental Hazards: Large releases may affect pH balance of aquatic systems
Label Elements: No GHS pictogram required for non-hazardous materials; may include caution on dust exposure
Chemical Name: Calcium Carbonate
Concentration: Typically above 98%, trace amounts of magnesium carbonate or silica may appear depending on source
Impurities: Silica, magnesium oxide, iron oxide may be present in minor quantities in natural sources
Molecular Weight: 100.09 g/mol
Inhalation: Move affected person to fresh air, rinse mouth with water, seek medical attention if coughing or discomfort persists
Skin Contact: Brush off excess powder, wash area with soap and water if irritation occurs
Eye Contact: Rinse with plenty of water, lift eyelids to ensure thorough flushing; medical attention if redness or discomfort continues
Ingestion: Non-toxic in moderate quantities; rinse mouth and drink water to clear, medical care recommended if large quantities swallowed or symptoms develop
Suitable Extinguishing Media: Product itself is not combustible; use extinguishing media appropriate for surrounding fire
Special Hazards: Reacts with acids to release carbon dioxide, presenting asphyxiation risk in confined spaces
Protective Equipment: Standard gear for firefighters, self-contained breathing apparatus if smoke or acid vapors present
Specific Methods: Prevent runoff from entering drains or watercourses, ventilate area if released with acid vapors
Personal Precautions: Avoid inhaling dust, ventilate area, wear dust masks and eye protection
Environmental Precautions: Prevent entry into waterways or drains, sweep up with minimal dust generation
Cleanup Methods: Sweep or vacuum material, avoid water wash-down, collect in suitable containers for reuse or disposal
Disposal: As per local regulations, dispose of material as non-hazardous waste unless contaminated
Safe Handling: Minimize dust generation and accumulation, use local exhaust ventilation, avoid skin and eye contact
Storage Conditions: Store in dry, cool, well-ventilated places, keep containers tightly closed to avoid moisture contamination
Incompatible Materials: Acids, sources of excessive moisture, strong oxidizers
Industrial Hygiene: Wash hands before eating, drinking, or smoking, change out of dusty clothes after work
Occupational Exposure Limit: OSHA PEL for particulates not otherwise regulated: 15 mg/m3 (total dust), 5 mg/m3 (respirable fraction), ACGIH TLV for calcium carbonate: 10 mg/m3 (inhalable), 3 mg/m3 (respirable)
Engineering Controls: Use local exhaust ventilation, enclose handling processes if practical
Personal Protective Equipment: Dust mask or respirator for high concentrations, safety goggles, protective gloves, work clothing
Hygiene Measures: Change out of dusty work clothes, wash thoroughly after handling
Appearance: Fine white to off-white odorless powder
Odor: Odorless
pH: 8.0–9.0 (saturated solution)
Melting Point / Freezing Point: Decomposes above 825°C
Boiling Point: Not applicable
Solubility: Slightly soluble in water (<0.0013 g/100 mL at 25°C), reacts and dissolves in acids with effervescence
Density: 2.7–2.9 g/cm3
Vapor Pressure: Not applicable
Flash Point: Not combustible
Evaporation Rate: Not applicable
Partition Coefficient (n-octanol/water): Not applicable
Chemical Stability: Stable under normal storage and handling
Reactivity: Releases carbon dioxide when exposed to acids
Hazardous Reactions: Vigorous reaction with concentrated acids, possibility of pressure buildup in closed containers if exposed to acids
Conditions to Avoid: Moisture, contact with strong acids, excessive heat
Hazardous Decomposition Products: Carbon dioxide gas under acidic conditions
Acute Toxicity: Low toxicity by oral, inhalation, or dermal exposure; LD50 (oral, rat) > 5,000 mg/kg
Chronic Effects: No evidence of chronic systemic toxicity; extended inhalation of dust may cause respiratory tract irritation
Skin and Eye Contact: May cause mild mechanical irritation
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA
Sensitization: No known sensitizing effect
Mutagenicity and Teratogenicity: No known significant effects or critical hazards
Ecotoxicity: Not expected to be toxic to aquatic or terrestrial life; large quantities may elevate pH of water in spill situations
Persistence and Degradability: Dissolves slowly, massive natural abundance
Bioaccumulation Potential: Not found to bioaccumulate
Mobility in Soil: Retained in upper soil layers, limited mobility
Other Adverse Effects: None known in environmental concentrations used for commercial and industrial purposes
Waste Treatment Methods: Dispose as non-hazardous waste or recycle if clean and uncontaminated
Container Disposal: Ensure packaging is completely clean before recycling or disposal
Regulatory Considerations: Always follow national, regional, and local regulations; report large releases as required by local authorities
UN Number: Not regulated for transport
UN Proper Shipping Name: Not classified as hazardous under bulk transport regulation
Transport Hazard Class: Not a dangerous good
Packing Group: Not applicable
Special Precautions: Keep containers dry, transport in covered vehicles to avoid moisture contamination and minimize dust
US Regulations: Listed by OSHA as “particulates not otherwise regulated”; not subject to reporting under SARA Title III Section 313
EU Regulations: Not classified as a dangerous substance under CLP Regulation (EC) No 1272/2008
Canada: Not a controlled product under WHMIS; DSL listed
Inventory Listings: Listed on TSCA, EINECS, AICS, PICCS, DSL, NZIoC
Other Local Regulations: Follow any region-specific labeling and environmental rules, especially related to bulk handling and dust exposure
