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Product Name: Cerium Nitrate
Chemical Formula: Ce(NO3)3·6H2O
CAS Number: 10294-41-4
Synonyms: Cerium(III) Nitrate Hexahydrate, Ceric Nitrate
Intended Use: Catalyst, glass additives, polishing agent, chemical research
Supplier: Refer to the purchasing source
Contact Details: Emergency phone numbers available through chemical suppliers and workplace safety officers
Recommended Restrictions: Laboratory use, industrial processing, not for food or pharmaceutical additives
GHS Classification: Oxidizing solid (Category 3), Acute Toxicity Oral (Category 4), Skin Irritation (Category 2), Serious Eye Damage (Category 1), Specific Target Organ Toxicity – Single Exposure (Category 3, respiratory tract)
Signal Word: Danger
Hazard Statements: May intensify fire (oxidizer). Harmful if swallowed. Causes skin irritation. Causes serious eye damage. May cause respiratory irritation.
Pictograms: Flame over circle, exclamation mark, corrosive
Precautionary Statements: Keep away from heat, sparks, open flames. Avoid breathing dust. Wash hands thoroughly after handling. Wear protective gloves, eye protection, face shields. Use only outdoors or in well-ventilated areas.
Emergency Overview: White to pale yellow crystalline solid, no distinct odor, releases toxic fumes on decomposition, can aggravate existing medical conditions relating to lungs and skin
Chemical: Cerium Nitrate Hexahydrate
Common Name: Cerium nitrate
CAS Number: 10294-41-4
Concentration: 98-100% by weight
Impurities: Trace amounts of lanthanum oxide, praseodymium nitrate, or other rare earth contaminants based on processing
Molecular Weight: 434.22 g/mol (hexahydrate)
Ingredient Notes: No stabilizers or additional components listed in technical grade material
Eye Contact: Rinse immediately with plenty of running water for 15+ minutes while holding eyelids open, remove contact lenses if present, get medical attention
Skin Contact: Remove contaminated clothing, flush skin with water and soap for at least 15 minutes, seek care for persistent irritation
Inhalation: Move affected person to fresh air, rest in half-upright position, call poison center or physician if short of breath, administer oxygen if breathing is difficult
Ingestion: Rinse mouth thoroughly, never induce vomiting, obtain immediate medical attention, provide SDS information to responders
Most Important Symptoms: Redness, itching, eye pain, difficulty breathing, nausea, coughing, burning sensation on exposure
Note to Physicians: Treat symptomatically, support respiratory and cardiovascular function, monitor for delayed pulmonary complications
Suitable Extinguishing Media: Water spray, dry chemical, foam (avoid direct application of strong water jets)
Unsuitable Extinguishing Methods: Carbon dioxide is less effective, avoid direct water stream on burning powder piles
Specific Hazards: Oxidizer, increases combustion of flammable materials, dangerous fumes of nitrogen oxides and cerium oxides on fire
Protective Equipment: Full turnout gear, self-contained breathing apparatus, eye and face protection
Special Firefighting Instructions: Avoid breathing vapors, keep away from combustibles, cool fire-exposed containers with water mist, approach from upwind
Thermal Decomposition Products: Nitrogen oxides, cerium oxides, irritating fumes that impact respiratory health
Personal Precautions: Wear respiratory protection, chemical-resistant gloves, safety goggles, protective clothing
Environmental Precautions: Avoid discharge into drains, surface waters, or soil, follow local spill reporting rules
Spill Cleanup Procedures: Vacuum up powder using equipment with HEPA filtration or sweep up without creating dust, place in sealed containers for disposal
Decontamination: Wash spill area with copious amounts of water and soap, ventilate area
Disposal of Waste: Place collected material in labeled hazardous waste containers, do not flush residues to sewer or public waterways
Handling Precautions: Operate in a well-ventilated spot, minimize dust generation, avoid inhaling fumes or dust, keep away from incompatible materials like organics or combustibles
Hygiene Measures: Wash hands after use, remove contaminated clothing before eating or smoking, keep chemical from contact with skin and eye
Storage Conditions: Store in tightly closed containers, dry and cool area, keep separate from reducing agents and combustibles
Technical Solutions: Use local exhaust where risk of dust or vapor exists, store away from direct heat or sunlight, label storage containers with hazard status
Container Recommendations: Use glass, plastic or corrosion-resistant drums, secondary containment advised for bulk volumes
Occupational Exposure Limits: No ACGIH or OSHA exposure limits set for cerium nitrate; general nuisance dust limit (10 mg/m³ TWA) applies
Engineering Controls: Local exhaust ventilation, fume hood recommended for bulk powders
Personal Protection: Splash goggles, full-face shield for large volumes, nitrile or neoprene gloves, laboratory coat, long pants, closed-toe shoes
Respiratory Protection: NIOSH-approved dust mask or respirator in case of inadequate ventilation
Environmental Exposure Controls: Prevent material release into drains and environment, use spill containment
General Measures: Eye wash stations, emergency showers in work area recommended
Appearance: Colorless to pale yellow crystalline powder
Odor: Odorless
Odor Threshold: Not applicable
pH: Slightly acidic (3.5 to 5.5 in 5% solution)
Melting Point/Freezing Point: Decomposes above 65°C (no clear melting)
Boiling Point: Not applicable
Flash Point: Not flammable
Evaporation Rate: Non-volatile
Flammability: Not combustible, oxidizer
Vapor Pressure: Negligible at ambient temperatures
Vapor Density: Not applicable
Bulk Density: 2.5 g/cm³ (approximately)
Solubility: Highly soluble in water; slightly soluble in alcohol
Partition Coefficient (n-octanol/water): Not available
Auto-ignition Temperature: Not self-igniting
Decomposition Temperature: 65°C (decomposition releases toxic gases)
Viscosity: Not determined
Other Properties: Hygroscopic crystals, absorbs moisture from air, can clump in humid conditions
Stability: Stable under recommended storage conditions, decomposes in heat or moisture
Reactivity: Reacts with reducing agents, organic materials, strong acids, and flammable substances
Hazardous Reactions: Risk of explosive or violent reactions with incompatible materials
Thermal Decomposition: May emit toxic gases such as nitrogen oxides, cerium oxides
Polymerization: Not known to occur
Conditions to Avoid: Humidity, high temperatures, proximity to combustibles and reducing agents
Incompatible Materials: Sulfides, phosphorous, powdered metals, ammonium salts, reactive organics
Corrosivity: Can irritate metals and corrode aluminum containers over time
Acute Toxicity: LD50 (oral, rat): 730 mg/kg
Skin Effects: Causes irritation, possible redness, rash upon contact
Eye Effects: Severe irritation, redness, watering, potential for eye damage
Inhalation Effects: Irritates respiratory tract, coughing, shortness of breath, possible inflammation
Chronic Toxicity: Prolonged or repeated exposure can damage lungs, kidneys, and cause dermatitis
Sensitization: Not classified as a sensitizer under most regulatory systems
Carcinogenicity: Not listed as a carcinogen
Mutagenicity: No known mutagenic effects
Reproductive Toxicity: No data indicates reproductive or developmental toxicity in humans
Ecotoxicity: Toxic to aquatic organisms, risk of bioaccumulation in sediment
Mobility in Soil: Highly soluble, can leach through soils; binds to clay and organic particles
Persistence and Degradability: Inorganic compounds not readily biodegradable, long environmental half-life
Bioaccumulation Potential: May accumulate in aquatic plant and animal tissues
Aquatic Toxicity: Harmful to fish and invertebrates; detailed data on EC50/LC50 limited but suggests precautions
Other Adverse Effects: Release can cause harm to water supplies and reduce oxygenation in water
Waste Disposal Methods: Dispose of in accordance with local, regional, and national regulations for hazardous waste; do not landfill with general refuse
Contaminated Packaging: Rinse thoroughly before recycling, treat rinsate as hazardous
Incineration: Only possible in facilities equipped to scrub toxic gases from emissions
Special Precautions: Avoid contact with soil and groundwater; use designated chemical disposal services for bulk material
Legal Framework: Hazardous waste listings and tracking apply in many jurisdictions; record keeping of disposals is a best practice
UN Number: 1477
UN Proper Shipping Name: Nitrates, inorganic, n.o.s. (Cerium nitrate)
Transport Hazard Class: 5.1 (Oxidizing Substance)
Packing Group: III
Marine Pollutant: Not classified as marine pollutant, but avoid release
Labeling Requirements: Oxidizer placard required for most shipments
Special Provisions: Emergency response documentation must accompany bulk shipments
Transport by Air or Sea: ICAO/IATA, IMDG codes followed; special packaging and documentation apply
EU Regulation: Substances subject to Registration, Evaluation, Authorization and Restriction of Chemicals (REACH); classified under CLP Regulation
US Regulations: Not listed on US TSCA inventory, considered hazardous by OSHA Hazard Communication Standard, SARA 313 listed for nitrate releases
Canada: Listed on DSL/NDSL, subject to WHMIS oxidizer category
Australia: Listed on AICS, safe work guidance applies, dangerous goods for transport
Other Regional Regulations: Compliance required for GHS-aligned labeling, workplace safekeeping, reporting of emergency incidents relating to spills or exposure
Hazard Communication: SDS required for shipment and workplace use; training mandated for all workers handling the material
