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Product Name: Cerium Powder, Cerium Chips
Chemical Formula: Ce
CAS Number: 7440-45-1
Use: Manufacturing, laboratory, metallurgical processes.
Supplier Details: Manufacturer or supplier address, emergency contact number.
Synonyms: Elemental Cerium
GHS Classification: Flammable solid, Eye irritant, Skin irritant
Pictogram: Flame, exclamation mark
Signal Word: Danger
Hazard Statements: May ignite spontaneously in air, Causes eye irritation, Harmful if inhaled, May cause allergic skin reaction
Precautionary Statements: Keep away from heat, sparks, open flames, Take precautionary measures against static discharge, Wear protective gloves and eye protection.
Routes of Entry: Inhalation, skin contact, eye contact
Chemical Name: Cerium
Concentration: 98-100%
Impurities: Trace amounts of lanthanides and rare earth metals may exist, but not at levels that affect safety.
EC Number: 231-154-9
Eye Contact: Rinse carefully with plenty of water for at least 15 minutes, seek medical advice if irritation persists.
Skin Contact: Remove all contaminated clothing, wash immediately with soap and water.
Inhalation: Move person to fresh air, monitor breathing, get medical help for any respiratory symptoms.
Ingestion: Never give anything by mouth if victim is unconscious. Rinse mouth, seek medical attention.
Symptoms: Eye redness, skin irritation, cough, headache if large amounts inhaled.
Flammable Properties: Powder and chips can ignite spontaneously in air.
Suitable Extinguishing Media: Dry powder extinguishers such as Class D (sodium chloride or graphite powder). Water and carbon dioxide can intensify burning.
Unsuitable Media: Never use water or foam.
Protective Equipment: Firefighters should use self-contained breathing apparatus and full protective suit.
Fire/Explosion Hazards: May emit toxic fumes of cerium oxides during combustion.
Personal Precautions: Evacuate and ventilate area. Remove ignition sources, avoid breathing dust. Use appropriate PPE including gloves, goggles, dust mask or respirator.
Environmental Protection: Prevent entry to sewage systems or water bodies.
Cleanup Methods: Gently sweep up, avoid creating a dust cloud, use non-sparking tools, store in a dry, fire-proof container for disposal.
Handling: Handle under inert atmosphere if possible, avoid creating dust, ground equipment to prevent static discharge.
Storage: Store in tightly sealed original container, cool, dry, well-ventilated location, away from heat and moisture. Lock up chemicals in designated area, keep away from acids, halogens, oxidizers.
Special Requirements: Use only in dedicated, fire-resistant zones, label containers clearly.
Engineering Controls: Use local exhaust ventilation, closed systems, glove boxes for powder handling.
OELs: Cerium dust TLV (Threshold Limit Value): 1 mg/m³ (as Ce)
Personal Protection: Nitrile or rubber gloves, goggles, lab coat, and approved respirators when risk of inhalation exists. Wash hands after handling, remove contaminated clothing before leaving work area.
Appearance: Soft, silvery-grey powder or solid, metallic chips
Odor: Odorless
Melting Point: 795 °C
Boiling Point: 3443 °C
Density: 6.77 g/cm³
Vapor Pressure: Negligible at room temperature
Solubility: Insoluble in water, reacts slowly
Other Properties: Tarnishes in air, forms oxide layer, high reactivity as powder or chips
Chemical Stability: Stable in air as bulk, rapidly oxidizes as powder or chips.
Hazardous Reactions: Reacts with water, acids, oxidizers, halogens producing heat, hydrogen, toxic gases.
Incompatible Materials: Moisture, strong acids, halogenated materials, air for finely divided forms.
Hazardous Decomposition Products: Cerium oxides, hydrogen gas.
Likely Routes of Exposure: Inhalation, skin and eye contact
Health Effects: Eye and skin irritation, possible delayed lung effects for repeated large exposures
Acute Toxicity: Not acutely toxic, but causes local irritation
Chronic Toxicity: Long-term heavy exposure linked to pneumoconiosis
Carcinogenicity: No evidence for carcinogenicity in humans
Sensitization: Can cause allergic skin reactions
Ecotoxicity: Cerium compounds may be moderately toxic to aquatic life.
Persistence and Degradability: Not biodegradable but remains in solid state in the environment.
Bioaccumulation: Low potential to bioaccumulate in terrestrial or aquatic organisms.
Other Effects: May disrupt sediment chemistry in waterways, can persist in soil.
Waste Treatment Methods: Collect and containerize waste, avoid accumulation of dust.
Disposal: Use registered hazardous waste disposal contractor, follow local and national regulations. Do not incinerate or landfill with non-hazardous materials.
Contaminated Packaging: Decontaminate packaging or dispose of as hazardous waste.
UN Number: 2546
Shipping Name: Cerium, powder or chips
Transport Hazard Class: 4.1 (Flammable solid)
Packing Group: II
Labels: Keep cool, dry, away from oxidizers and sources of ignition.
Special Precautions: Deliver in sealed containers, avoid transport with incompatible substances.
OSHA: Covered under Hazard Communication Standard as a hazardous material
TSCA: Cerium listed
REACH: Cerium registered in EU
SARA Title III: Not subject to reporting under Section 313
Other Regulations: Subject to local authority chemical safety, fire code, and workplace exposure limits
