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Product Name: Iron Selenide
Chemical Formula: FeSe
CAS Number: 1315-14-6
Synonyms: Ferroselenium, Iron(II) selenide
Recommended Use: Laboratory research, semiconductor applications, advanced materials
Supplier: Refer to official supplier documentation
Emergency Contact: Refer to local regulations and supplier contact information
Classification: Acute toxicity (oral, inhalation), Chronic aquatic toxicity
Hazard Statements: Toxic if swallowed or inhaled; May cause organ damage; Hazardous to aquatic life with long-lasting effects
Signal Word: Danger
Pictograms: Skull and crossbones, Environment
Precautionary Statements: Avoid breathing dust or fumes; Do not eat, drink or smoke during use; Prevent release to the environment; Wash thoroughly after handling
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Chemical Name: Iron Selenide
Concentration: 98-100%
CAS Number: 1315-14-6
Impurities: Trace metals such as iron oxides or selenium oxides possible depending on supplier and batch
Inhalation: Move to fresh air, keep at rest, seek medical attention for any persistent symptoms of discomfort or difficulty breathing.
Skin Contact: Remove contaminated clothing and wash affected area thoroughly with soap and water; seek medical advice if irritation develops.
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, get medical advice if irritation or pain persists.
Ingestion: Do not induce vomiting, rinse mouth, call emergency medical services or poison control center immediately, provide medical professional with product label if available.
Suitable Extinguishing Media: Dry sand, dry chemical powder, or foam; do not use water streams as they may disperse hazardous dust.
Specific Hazards: Selenium-containing fumes may form at elevated temperatures; fire can generate toxic and irritating gases.
Firefighter Protection: Wear self-contained breathing apparatus and full protective gear; avoid inhalation of combustion products.
Explosion Data: Non-explosive in solid form; dust accumulation can pose a combustion hazard.
Personal Precautions: Use personal protective equipment, ventilate the area, avoid generation of dust, remove sources of ignition.
Environmental Precautions: Prevent product from entering drains, soil, or waterways; contain spill to prevent environmental contamination.
Methods for Cleanup: Collect spilled material using non-sparking tools and place in tightly sealed containers, dispose of in accordance with local and national regulations; vacuum only with HEPA filters if available.
Decontamination: Clean contaminated surfaces thoroughly to avoid residual hazard.
Safe Handling: Handle in well-ventilated area, minimize dust generation and accumulation, avoid contact with skin and eyes, do not ingest or inhale.
Storage Conditions: Store in tightly closed containers, in a cool, dry, ventilated area away from incompatible substances like acids and oxidizers; keep away from food and beverages.
Specific Storage Requirements: Maintain packaging integrity to prevent leaks or spills; label containers clearly; inspect storage areas regularly for signs of deterioration.
Occupational Exposure Limits: Selenium compounds (as Se): ACGIH TLV 0.2 mg/m³; OSHA PEL 0.2 mg/m³
Engineering Controls: Use local exhaust ventilation to minimize airborne dust and fume exposure; process enclosures recommended for bulk material handling.
Personal Protective Equipment:
Respiratory Protection: Use NIOSH-approved particulate respirators when exposure limits are exceeded or dust is present.
Eye Protection: Wear chemical safety goggles.
Skin Protection: Use nitrile or neoprene gloves, wear lab coats or coveralls.
Hygiene Measures: Wash hands before eating or drinking, avoid bringing contaminated clothing home, shower after significant exposure.
Appearance: Black to dark gray powder or solid
Odor: No characteristic odor
Melting Point: 1078 °C
Boiling Point: Not well defined (decomposes at high temperatures)
Solubility in Water: Insoluble
Density: Around 5.72 g/cm³
pH: Not applicable
Vapor Pressure: Negligible at room temperature
Particle Size: Fine crystalline to powder, varies by specification
Chemical Stability: Stable under normal handling and storage conditions for most laboratory and industrial uses.
Reactivity: Slowly reacts with strong acids to liberate toxic hydrogen selenide (H2Se) gas.
Incompatible Materials: Acids, strong oxidizers, halogens.
Hazardous Decomposition Products: Toxic selenium oxides, iron oxides, and hydrogen selenide may be released during heating or combustion.
Conditions to Avoid: Exposure to moisture, strong heat sources, acids, and incompatible chemicals.
Acute Toxicity: Oral LD50 (rat): Data limited, but considered toxic; Inhalation LC50 (rat): Data not available, risk arises from dust and fume inhalation.
Chronic Toxicity: Prolonged exposure leads to symptoms of selenium poisoning; can affect liver, kidneys, and central nervous system.
Exposure Symptoms: Skin or eye irritation, digestive discomfort, metallic taste, garlic odor on breath, possible respiratory symptoms.
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA.
Other Information: Selenium compounds bioaccumulate; individual susceptibility varies.
Ecotoxicity: Highly toxic to aquatic organisms, potential for long-term adverse effects in aquatic environments.
Environmental Persistence: Selenium compounds persist and migrate in aquatic and terrestrial systems;
Bioaccumulation: Tendency to bioaccumulate in aquatic biota; may enter food chains.
Mobility in Soil: Low water solubility limits mobility, but selenium ions may migrate under acidic conditions.
Other Harmful Effects: Selenium toxicity can impact wildlife and disrupt natural ecosystems.
Disposal Methods: Treat as hazardous waste in accordance with local, regional, and national laws.
Container Disposal: Decontaminate containers before discarding, use approved waste handlers.
Preventative Measures: Do not dispose of into the environment, sewers or water sources; avoid incineration unless equipped to handle selenium emissions.
Best Practices: Keep records of disposal, verify waste facility capability for selenium-containing compounds.
UN Number: UN3283
Proper Shipping Name: Selenium Compound, Solid, n.o.s. (contains Iron Selenide)
Hazard Class: 6.1 (Toxic Substance)
Packing Group: III
Transportation Precautions: Package in tightly closed, secure containers; comply with all relevant transportation regulations.
Labeling: Toxic substance label; environmental hazard label may also apply.
Transport Regulations: Subject to IMDG, ICAO/IATA, and ADR regulations for toxic solid materials.
TSCA Status: Listed in the Toxic Substances Control Act Inventory (USA).
REACH Status: May be subject to registration under European REACH regulations.
Hazard Symbols: GHS Skull and Crossbones, Environment.
SARA Title III: Subject to reporting requirements as a toxic chemical (Section 313: Selenium compounds).
Other National Inventories: Check local chemical inventory listings for compliance.
Lab and Workplace Requirements: Safety training for handling, PPE, accident response, and waste management.
Special Provisions: Review and implement site-specific risk management and exposure control plans.
