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Product Name: Zinc Oxide
Chemical Formula: ZnO
CAS Number: 1314-13-2
Synonyms: Zinc White, Chinese White
Recommended Use: Rubber compounding, ceramics, pharmaceuticals, cosmetics, paints, coatings, food additive
Manufacturer: Available upon request
Emergency Contact Number: Available upon request
Classification: Not classified as hazardous according to OSHA HazCom and GHS
Signal Word: None
Hazard Statements: May cause mild, mechanical eye and respiratory irritation; dust may be harmful if inhaled for long periods
Pictograms: No pictogram required
Routes of Entry: Inhalation, skin contact, eye contact, ingestion
Potential Health Effects: Repeated exposure could result in metal fume fever symptoms (headache, fever, chills, muscle ache)
Environmental Hazards: Not expected to pose serious hazard to aquatic environments, but release to water bodies should be minimized
Chemical Identity: Zinc Oxide
Common Name: Zinc oxide
Concentration: 99 - 100% ZnO by weight
Impurities: Trace heavy metals (lead, cadmium, mercury) below industry limits
Molecular Weight: 81.38 g/mol
Inhalation: Move person to fresh air, provide rest and keep warm; seek medical attention if symptoms persist
Skin Contact: Wash skin thoroughly with soap and water; remove contaminated clothing and wash before reuse
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes; lift eyelids occasionally; get medical help if irritation continues
Ingestion: Rinse mouth with water, drink plenty of fluids; do not induce vomiting; seek medical assistance if discomfort occurs
Symptoms of Exposure: Irritation, cough, sore throat, nausea, metal fume fever (rare, with high airborne concentrations)
Suitable Extinguishing Media: Use media suitable for surrounding fire (water spray, foam, carbon dioxide, dry chemical)
Unusual Fire Hazards: Not flammable itself; however, fine dust may react with aluminum or magnesium at high temperatures to release hydrogen
Special Protective Equipment: Firefighters need self-contained breathing apparatus and full protective clothing
Hazardous Combustion Products: Zinc fumes, oxides of zinc
Explosion Risks: Dust clouds could present explosion risk in confined spaces; ensure dust control
Personal Precautions: Avoid dust formation; ensure adequate ventilation; wear suitable personal protective equipment
Environmental Precautions: Prevent spillage from entering drains, surface or ground water
Methods for Cleaning Up: Sweep up or vacuum using equipment with HEPA filter; transfer to labeled containers for disposal; avoid dry sweeping or use of compressed air
Emergency Procedures: Remove sources of ignition; restrict entry to spill area; clean promptly and thoroughly
Handling Precautions: Avoid breathing dust or contact with skin and eyes; wash hands thoroughly after handling; use mechanical handling to reduce dust generation
Storage Conditions: Store in tightly closed containers in a cool, dry, well-ventilated place; keep away from strong acids, bases and oxidizing agents
Incompatibilities: Acids, strong bases, magnesium, aluminum powders, chlorinated rubber
Packing Materials: Use only containers made of compatible material
Other Precautions: Handle in accordance with established industrial hygiene and safety practices
Occupational Exposure Limits: OSHA PEL: 5 mg/m³ (respirable dust), 15 mg/m³ (total dust); ACGIH TLV: 2 mg/m³ (respirable fraction)
Engineering Controls: Local exhaust ventilation, process enclosure, general dilution ventilation
Eye Protection: Safety goggles or face shield
Skin Protection: Impervious gloves, long sleeves
Respiratory Protection: NIOSH-approved dust respirator in areas of high airborne dust; use powered air-purifying respirators for prolonged exposures
Hygiene Measures: Wash hands thoroughly after handling; do not eat, drink or smoke in work areas
Appearance: White, odorless powder
Odor: Odorless
pH (slurry in water): 7-9
Melting Point: 1975°C
Boiling Point: Above 2000°C
Solubility: Insoluble in water; soluble in acids and alkalis
Density: 5.6 g/cm³
Vapor Pressure: Negligible
Particle Size: Varies, typically < 10 microns for commercial grade
Flash Point: Not applicable
Auto-ignition Temperature: Not applicable
Chemical Stability: Stable under normal conditions of storage and use
Possibility of Hazardous Reactions: Reacts with strong acids to produce hydrogen; vigorous reaction with magnesium or aluminum at high temperatures
Conditions to Avoid: Moisture, incompatible substances, elevated temperatures during storage
Incompatible Materials: Strong acids, strong bases, magnesium, aluminum, chlorinated rubber
Hazardous Decomposition Products: Zinc fumes at high temperatures
Acute Toxicity: Oral LD50 (rat): >5000 mg/kg
Inhalation LC50: Not established; excessive exposure may result in cough, irritation, metal fume fever
Skin Irritation: Not classified as irritant
Eye Irritation: May cause mild irritation
Chronic Effects: Extended exposure to high concentrations can cause metal fume fever, not considered carcinogenic by IARC, NTP, or OSHA
Reproductive Toxicity: No known effects under normal use
Other Information: No evidence of mutagenic or teratogenic effects in humans
Toxicity: Slightly toxic to aquatic organisms in high concentrations
Persistence and Degradability: Inorganic compound, not readily biodegradable
Bioaccumulation Potential: Low potential for bioaccumulation in aquatic species
Mobility in Soil: Low mobility, binds to soil particles and sediments
Other Adverse Effects: Large spills may impact aquatic habitats and microflora; minimize release to environment
Waste Treatment Methods: Dispose of in compliance with local, state, and federal regulations; do not empty into drains
Disposal Containers: Use tightly closed, labeled containers; avoid generating dust
Reuse and Recycling: Product can often be recycled; contact licensed waste disposal contractors
Special Precautions: Contaminated packaging must be handled as hazardous waste
RCRA Status: Not considered hazardous waste unless contaminated with hazardous substances
UN Number: Not regulated for transport
UN Proper Shipping Name: Not classified as dangerous goods
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Marine Pollutant: No
Special Precautions: Prevent spillage and ensure containers are secure; avoid generating airborne dust during loading or unloading
Inventory Status: Listed on US TSCA, Canadian DSL/NDSL, EU EINECS/ELINCS, Australia AICS, and other major inventories
OSHA: Not classified as a hazardous chemical
SARA Title III: Not listed as an extremely hazardous substance; subject to reporting under Section 313 for certain applications
California Prop 65: Not listed
Other Regulatory Information: Use is subject to workplace safety regulations and environmental discharge limits in many jurisdictions
NFPA Ratings: Health: 1 | Flammability: 0 | Reactivity: 0
