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Chemical Name: Zinc Carbonate
Synonyms: Zinc Monocarbonate, Zinc(II) carbonate
CAS Number: 3486-35-9
Molecular Formula: ZnCO3
Recommended Use: Laboratory reagent, pharmaceuticals, feed additive, ceramics
Supplier Information: Available from chemical supply companies, with varied address and contact numbers depending on supplier location
Emergency Contact: Local or national poison control center, company emergency number listed on shipping paperwork
Classification: Hazardous to aquatic environment (acute/chronic toxicity), Eye irritation (Category 2B), Not classified as a physical hazard
Hazard Symbols: Exclamation mark, Environmental hazard
Signal Word: Warning
Hazard Statements: Causes eye irritation, Harmful to aquatic life with long lasting effects
Precautionary Statements: Avoid breathing dust, Wear protective gloves/eye protection, Wash hands thoroughly after handling, Avoid release to the environment, Dispose of contents in accordance with local regulations
Chemical: Zinc Carbonate
Concentration: 98%–100% (by weight)
Impurities: Small amounts of zinc oxide, carbonate compounds
Other Identifiers: No significant additives or stabilizers present
Inhalation: Move person to fresh air, keep at rest, monitor for breathing difficulty. Medical attention if symptoms persist
Skin Contact: Wash skin with soap and plenty of water. Remove contaminated clothing and shoes, launder before reuse
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if easy to do. Get medical attention if irritation occurs
Ingestion: Rinse mouth with water. Do not induce vomiting unless faculty instructs medically. Seek medical help if feeling unwell
Acute Symptoms: Irritation of the respiratory tract, mild gastrointestinal discomfort, eye and skin irritation
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Extinguishing Media: None known specific to this substance
Hazardous Combustion Products: Zinc oxides, carbon oxides
Special Protective Equipment for Firefighters: Full protective gear, self-contained breathing apparatus recommended
Fire/Explosion Hazard: Not flammable, but material decomposes to release toxic fumes at high temperature
Personal Precautions: Use personal protective equipment (PPE), avoid inhalation of dust, ensure adequate ventilation
Environmental Precautions: Prevent entry into waterways, soil, or drains. Alert environmental authorities if significant releases occur
Methods and Materials for Containment and Cleaning Up: Collect spilled material into appropriate containers. Vacuum or sweep area with care to minimize dust. Flush residue with plenty of water. Dispose in accordance with local, state, and federal laws
Handling: Avoid contact with eyes, skin, and clothing. Minimize dust generation. Use only in well-ventilated areas. Wear suitable personal protection equipment
Storage Conditions: Store in tightly closed containers in a dry, cool, and well-ventilated place. Keep away from incompatible substances like acids.
Incompatible Materials: Strong acids, ammonium salts, and other reactive chemicals
Hygiene Practices: Wash hands thoroughly after handling. Separate from food, beverages, and feed
Occupational Exposure Limits: OSHA/PEL: Zinc compounds as Zn, 5 mg/m³ (respirable), 15 mg/m³ (total dust) TWA
Engineering Controls: Local exhaust ventilation, general room ventilation, safety shower, eye wash station nearby
Personal Protection Equipment: Safety goggles, gloves (nitrile or rubber), laboratory coat, dust mask or respirator if airborne concentrations exceed limits
Environmental Controls: Minimize generation of dust or release to environment. Use closed systems where possible
Appearance: White powder or crystals
Odor: Odorless
Odor Threshold: Not applicable
pH: Approximately 7 (suspension in water)
Melting Point/Freezing Point: Decomposes above 300°C
Boiling Point: Not applicable
Flash Point: Not applicable
Evaporation Rate: Not available
Flammability: Not flammable
Vapor Pressure: Negligible
Vapor Density: Not applicable
Relative Density: About 4.4 (water = 1)
Solubility: Insoluble in cold water; slightly soluble in acids
Partition Coefficient (n-octanol/water): Not applicable
Auto-Ignition Temperature: Not self-igniting
Decomposition Temperature: Around 300°C
Viscosity: Not applicable
Chemical Stability: Stable under recommended storage conditions
Reactivity: Reacts slowly with acids, releasing carbon dioxide gas
Possible Hazardous Reactions: Exposure to strong acids generates zinc salts and CO2
Conditions to Avoid: Heat, acidic environments, moisture
Hazardous Decomposition Products: Zinc oxide, carbon dioxide
Acute Toxicity: Oral LD50 values indicate low toxicity for zinc carbonate, but excessive ingestion may cause symptoms related to zinc poisoning
Skin Corrosion/Irritation: May cause mild skin irritation
Eye Damage/Irritation: Causes eye irritation
Respiratory Sensitization: Prolonged inhalation may cause respiratory tract irritation
Symptoms of Exposure: Nausea, vomiting, stomach ache, headache if ingested in large quantities. Dust may irritate respiratory passages
Chronic Effects: Excess zinc can affect digestive enzymes, lead to copper deficiency, or cause other imbalances with chronic exposure
Toxicity: Harmful to aquatic life; zinc ions released from carbonate may impact fish and invertebrates
Persistence and Degradability: Inorganic compound, does not degrade, may persist in soil or sediments
Bioaccumulative Potential: Zinc compounds do not bioconcentrate significantly in most aquatic species
Mobility in Soil: Sparingly mobile; binds to soil particles, limited water solubility
Other Adverse Effects: Can contribute to long-term disruption of aquatic and terrestrial environments if released in substantial quantities
Methods of Disposal: Collect in tightly sealed, labeled containers for disposal as hazardous waste
Disposal of Contaminated Packaging: Rinse thoroughly, dispose according to local regulations
Do Not: Discharge into sewer systems or surface waters
Regulatory Requirements: Follow local, state, and federal rules; consult waste management authorities for safe disposal
UN Number: Not regulated for transport
UN Proper Shipping Name: Not classified as a dangerous good
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Environmental Hazards: Avoid bulk shipment near bodies of water. Not subject to significant transport restrictions
Special Precautions: Avoid dust generation in transit, pack securely to prevent leaks, label containers clearly
Global Inventory: Zinc carbonate listed in most major chemical inventories including TSCA, EINECS, DSL, AICS
OSHA Hazard Communication Standard: Covered chemical
SARA Title III: Not listed as a hazardous substance under Sections 302, 304, 313
EPA Regulations: Zinc compounds subject to reporting requirements in certain waste streams
State Regulations: Some states have specific limits or requirements for environmental releases or worker exposure
Labeling Requirements: Hazard pictograms, signal word “Warning,” hazard and precautionary statements required on containers
