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Product Name: Zinc Selenide
Chemical Formula: ZnSe
CAS Number: 1315-09-9
Recommended Use: Optical components, infrared windows, semiconductors
Manufacturer/Supplier: [Manufacturer contact details]
Emergency Contact: [Emergency phone number]
GHS Classification: Acute toxicity (Oral and Inhalation - Category 3), Specific Target Organ Toxicity (Single Exposure): Category 2
Signal Word: Danger
Hazard Statements: Toxic if swallowed or inhaled; causes damage to organs
Precautionary Statements: Wear personal protective equipment, use only outdoors or in a well-ventilated area, avoid breathing dust or fumes, wash thoroughly after handling
HMIS Rating: Health: 3, Flammability: 0, Reactivity: 0
Routes of Exposure: Inhalation, ingestion, skin, eyes
Chemical Name: Zinc Selenide
Synonyms: Zinc selenide, ZnSe
Concentration: 100%
Impurities: Selenium compounds, traces of zinc oxide or unreacted metals depending on manufacturing process
Inhalation: Move exposed person to fresh air, keep comfortable for breathing, seek medical attention promptly; symptoms may include respiratory irritation, sore throat, coughing
Ingestion: Rinse mouth; do not induce vomiting; seek immediate medical attention; symptoms may include nausea, abdominal pain, headache
Skin Contact: Remove contaminated clothing, wash area with plenty of soap and water for 15 minutes, see a doctor if irritation develops
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes lifting the eyelid, get medical attention if irritation persists
Most Important Symptoms: Headache, respiratory distress, nausea, dizziness, possible lung or organ damage with significant exposure
Note to Physicians: Treat symptomatically, monitor for selenium poisoning, provide supportive care as needed
Suitable Extinguishing Media: Use dry chemical powder, CO₂, foam, or sand
Unsuitable Media: Water spray, which may spread dust or react with hot material
Fire and Explosion Hazards: Non-flammable under normal conditions, releases toxic fumes of selenium oxides and zinc oxides at high temperatures
Protective Equipment: Firefighters require self-contained breathing apparatus and full protective clothing
Special Procedures: Move containers from fire area if safe, contain runoff to prevent environmental contamination
Personal Precautions: Prevent dust formation, avoid inhalation or contact with skin and eyes, ventilate area, use personal protective equipment
Environmental Measures: Prevent release to waterways, soil, drains, collect spills, and place in sealed containers
Cleanup Methods: Sweep up without causing dust, place in chemical waste container, wash affected area thoroughly, ensure proper disposal
Emergency Procedures: Evacuate non-essential personnel, restrict entry, provide adequate ventilation, wash hands thoroughly after cleanup
Handling: Wear appropriate protective clothing and respiratory protection, avoid dust generation, work in fume hood or well-ventilated area, handle away from incompatible substances
Storage Requirements: Store in tightly closed containers, in a cool, dry, well-ventilated place, away from acids, oxidizers, moisture, and foodstuffs
Incompatible Products: Strong acids, strong oxidizing agents, excessive moisture
Hygiene Practices: Do not eat, drink, or smoke around material, wash hands and face before breaks and after handling
Exposure Limits: OSHA PEL (Zinc compounds): 15 mg/m³ (total dust), ACGIH TLV (Selenium compounds): 0.2 mg/m³
Engineering Controls: Local exhaust ventilation, chemical fume hood, process enclosures
Personal Protective Equipment: Suitable respirator (NIOSH/MSHA approved), chemical resistant gloves, safety goggles, lab coat, use dust mask especially for long work sessions or high dust environments
Environmental Controls: Prevent spillage and environmental release, use containment methods, dispose in accordance with regulations
Appearance: Yellow to red polycrystalline solid, transparent as thick plates or windows
Odor: Odorless
Melting Point: 1525°C
Boiling Point: Decomposes
Density: 5.27 g/cm³
Solubility: Practically insoluble in water
Vapor Pressure: Not applicable
pH: Not available
Other Properties: Stable at room temperature, sensitive to moisture in finely divided form, non-conductive in bulk state, refractive index 2.67 (at 10.6 µm)
Reactivity: Stable under recommended storage and handling conditions
Chemical Stability: Stable in dry air, may degrade slowly with moisture
Hazardous Reactions: Reacts with strong acids, releases toxic hydrogen selenide gas
Conditions to Avoid: High humidity, strong acids, excessive heat, direct sunlight
Hazardous Decomposition: Selenium oxides, zinc oxides, hydrogen selenide (with acids)
Polymerization: No known polymerization hazard
Routes of Exposure: Inhalation, ingestion, skin contact
Acute Toxicity: Toxic if ingested or inhaled, LD₅₀ (oral-rat): 180 mg/kg (as selenium), can cause severe respiratory irritation
Chronic Effects: Long-term exposure can result in selenium poisoning (selenosis) affecting hair, nails, nervous system
Symptoms: Headache, abdominal pain, respiratory difficulty, metallic taste, garlic breath
Carcinogenicity: Not listed by IARC, NTP, or OSHA as carcinogenic
Other Effects: May cause organ damage (liver, kidneys) on repeated exposure
Target Organs: Lungs, liver, kidneys, central nervous system
Ecotoxicity: Toxic to aquatic organisms, selenium and zinc compounds pose hazards to water environments
Environmental Persistence: Not readily biodegradable, stays in soil and sediment for extended periods
Mobility in Soil: Limited mobility; particle-bound metals tend to accumulate
Bioaccumulation Potential: Selenium can accumulate in aquatic organisms, leading to toxic effects up the food chain
Other Adverse Effects: Discharge to water can cause long-term environmental toxicosis, especially in sensitive aquatic habitats
Waste Disposal Methods: Dispose of as hazardous waste in accordance with local, state, and federal requirements
Container Disposal: Decontaminate containers before discarding, avoid landfill unless authorized
Precautions: Do not dump into sewers, water sources, or regular garbage
Handling of Residues: Collect for recovery or safe disposal by licensed chemical waste contractors
UN Number: 3283
UN Proper Shipping Name: Selenium Compound, N.O.S. (Zinc Selenide)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Environmental Hazards: Marine pollutant, toxic to aquatic life
Special Precautions: Secure packaging to avoid breakage and spills, clear labeling required
Regulatory References: Complies with DOT, IMDG, IATA guidelines for hazardous materials
OSHA Regulations: ZnSe classified as hazardous under OSHA Hazard Communication Standard
TSCA Inventory: Listed
SARA Title III: Requires reporting if threshold planning quantities exceeded
California Proposition 65: Not specifically listed
WHMIS Classification (Canada): D2A – Very toxic material
EU Classification: Toxic (T), Dangerous for environment (N); Risk Phrases R23/25, R33,
Labeling Requirements: Signal word "Danger", pictograms for toxic and environmental hazards
Other Local/International Standards: Covered under international agreements such as the Rotterdam and Stockholm Conventions for hazardous chemicals
