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Product Name: Cerium Selenite
Chemical Formula: Ce(SeO3)2
CAS Number: 13597-18-5
Synonyms: Cerium(III) Selenite
Recommended Use: Laboratory research, manufacturing of specialized glasses and ceramics
Supplier: [Supplier details]
Emergency Number: [Emergency contact details]
GHS Classification: Acute toxicity (oral), Skin irritation, Eye irritation
Signal Word: Warning
Hazard Statements: Harmful if swallowed. Causes skin and eye irritation.
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust or fumes. Wear protective gloves and eye protection. Wash hands after handling.
Potential Health Effects: Inhalation may cause respiratory irritation. Ingestion may lead to nausea, abdominal pain. Skin contact may result in irritation or redness.
Environmental Effects: May pose a risk to aquatic life.
Cerium Selenite: 99%
Impurities: Trace amounts of rare earth oxides, water content less than 1%
Other Components: None identified as hazardous
EC Number: 236-950-5
Molecular Weight: 439.94 g/mol
Inhalation: Move to fresh air. Monitor for breathing difficulty or coughing. Seek medical attention if symptoms persist.
Skin Contact: Rinse area thoroughly with soap and water. Remove contaminated clothing. Seek medical treatment for persistent irritation.
Eye Contact: Rinse cautiously with plenty of running water for several minutes. Remove contact lenses if present and easy to do. Call a healthcare provider if eye discomfort continues.
Ingestion: Rinse mouth with water. Do not induce vomiting. Seek medical advice immediately if feeling unwell.
Important Symptoms: May cause discomfort, redness, cough, or abdominal pain.
Advice for Physician: Treat symptomatically.
Suitable Extinguishing Media: Water spray, carbon dioxide, dry chemical, or appropriate foam.
Unsuitable Media: Avoid using a direct water jet which may spread the material.
Special Hazards: May emit toxic fumes of selenium oxides and cerium oxides during combustion.
Firefighter Protection: Wear self-contained breathing apparatus and full chemical protective gear.
Firefighting Procedures: Move containers from fire area if possible. Use caution with runoff to avoid selenium contamination.
Decomposition Products: Selenium oxides, cerium oxides, trace toxic metals.
Personal Precautions: Avoid dust formation. Wear suitable personal protective equipment including gloves and safety goggles.
Environmental Precautions: Prevent entry into drains, waterways, or soil. Alert authorities in case of significant spills.
Containment: Sweep up spilled material using non-sparking tools. Do not dry sweep dust; use a damp cloth or mop.
Clean-up: Place material in a sealed, labeled container for disposal. Ventilate affected area.
Decontamination: Wash spill area with water and mild detergent. Dispose of cleaning materials as hazardous waste.
Reporting: Report sizeable releases according to local environmental regulations.
Handling: Avoid generation of airborne dust and direct contact with skin or eyes. Use in well-ventilated spaces. Avoid ingestion and inhalation.
Storage Conditions: Store in tightly closed containers in a cool, dry, and well-ventilated area. Keep away from moisture, acids, and incompatible chemicals.
Incompatibilities: Strong oxidizing agents, acids, alkalis.
Precautions: Keep container sealed when not in use. Label containers clearly.
Hygiene Measures: Wash hands thoroughly after handling and before eating, drinking, or smoking.
Engineering Controls: Use local exhaust ventilation or process enclosures to keep airborne levels below recommended limits.
Exposure Limits: No occupational exposure limit established for cerium selenite. Monitor airborne levels to reduce exposure.
Personal Protection: Wear appropriate safety goggles, chemical-resistant gloves, and protective clothing.
Respiratory Protection: Use a NIOSH-approved dust respirator if ventilation is insufficient.
Environmental Controls: Prevent release to environment. Wash hands and face after handling.
Appearance: Off-white to pale yellow powder
Odor: Odorless
pH: Not applicable (insoluble in water)
Boiling Point: Decomposes before boiling
Melting Point: Decomposes at elevated temperature
Solubility: Slightly soluble in water; more soluble in acids
Density: Approximately 4.8 g/cm3
Vapor Pressure: Not relevant for powder
Partition Coefficient: Not established
Flash Point: Not flammable
Viscosity: Not applicable
Chemical Stability: Stable under normal storage and handling conditions.
Conditions to Avoid: Exposure to moisture, extreme temperatures, and incompatible substances.
Reactivity: Non-reactive under ordinary conditions but may react with acids and oxidizers.
Hazardous Reactions: Forms toxic gases upon contact with strong acids or oxidizers.
Hazardous Decomposition Products: Selenium dioxide, cerium oxides, possible release of toxic metal fumes.
Polymerization: No hazardous polymerization expected.
Routes of Exposure: Inhalation, ingestion, skin and eye contact.
Acute Toxicity: Oral and inhalation exposure may cause nausea, abdominal pain, headache, respiratory tract irritation.
Chronic Effects: Prolonged exposure may affect liver, kidneys, and central nervous system.
Sensitization: Not reported, but allergic reactions may develop due to selenium content.
Carcinogenicity: Not classified as a carcinogen by IARC, ACGIH, or NTP.
Reproductive Toxicity: Data insufficient for conclusive determination.
Additional Information: Symptoms may worsen in individuals with selenium or rare earth sensitivities.
Ecotoxicity: Harmful to aquatic organisms and may cause long-term adverse effects in the environment.
Aquatic Toxicity: Selenium compounds have known toxic impacts to fish and aquatic invertebrates.
Persistence and Degradability: Does not biodegrade readily. Persists in soil and water systems.
Bioaccumulation: May accumulate in aquatic food chains.
Mobility in Soil: Limited; binds to soil particles.
Additional Notes: Take care to avoid environmental discharge.
Disposal Methods: Dispose in accordance with local, regional, and national regulations for hazardous wastes.
Waste Classification: Hazardous waste by many regulatory authorities due to selenium content.
Contaminated Packaging: Containers should be emptied as much as possible and disposed of as hazardous waste.
Recommended Disposal: Incineration or chemical treatment at licensed facilities.
Precautions: Do not dispose in municipal waste or sewage systems.
UN Number: Not assigned
Transport Hazard Class: Considered non-flammable, may fall under hazardous materials depending on jurisdiction due to selenium toxicity.
Packing Group: Not specified
Shipping Name: Cerium Selenite
Environmental Hazards: Marine pollutant potential due to selenium content
Special Precautions: Package securely to avoid breakage. Label cargo properly for transport. Follow all regulatory requirements for hazardous material transport.
TSCA Status: Listed under the Toxic Substances Control Act inventory
REACH Status: Registered under European REACH regulation
OSHA: Not specifically regulated, but workplace exposure limits for particulate matter and selenium apply
EPA: Classified as hazardous waste (selenium content) under RCRA
WHMIS Classification - Canada: D2B: Toxic material causing other toxic effects
Other Regulation: Subject to local, national, and international regulations governing hazardous chemical handling and disposal
Labeling: Labels must display hazard warnings and safe handling instructions in accordance with GHS standards.
