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Product Name: Silver Selenite
Chemical Formula: Ag2SeO3
CAS Number: 1302-13-4
Use: Research and industrial chemical applications
Manufacturer/Supplier: Refer to packaging label or supplier details
Emergency Contact: Local poison control center or your workplace safety officer
Synonyms: Disilver Selenite
Classification: Acute toxicity (oral), Skin irritation, Eye irritation, Specific target organ toxicity (single exposure)
Signal Word: Danger
Hazard Statements: May cause damage to organs through prolonged or repeated exposure, Causes skin and serious eye irritation, Harmful if swallowed
Pictograms: Exclamation mark, Health hazard
Precautionary Statements: Avoid swallowing, inhaling dust, or allowing product to contact eyes and skin; use protective equipment; minimize release into the environment
Routes of Exposure: Inhalation, ingestion, dermal contact, eye contact
Chemical: Silver Selenite
Common Name: Disilver Selenite
Concentration: 100%
CAS Number: 1302-13-4
Impurities: Trace metal contaminants possible due to synthesis or handling
Inhalation: Move affected person to fresh air, keep comfortable for breathing, seek medical advice immediately if symptoms such as coughing, dizziness, or headache develop
Skin Contact: Remove contaminated clothing, rinse exposed skin with soap and water for at least 15 minutes, seek medical help if irritation or symptoms persist
Eye Contact: Rinse eyes gently with water for several minutes, lift eyelids to flush thoroughly, remove contact lenses if present and easy to do, continue rinsing, contact physician
Ingestion: Rinse mouth with water, do not induce vomiting, seek immediate medical attention; nurse or emergency responder should monitor for signs of toxicity or respiratory distress
Extinguishing Media: Use dry chemical, CO2, or foam; water spray recommended to cool containers
Unsuitable Media: Avoid direct jet of water if possible as it may scatter the material
Hazards from Combustion: May release toxic selenium and silver oxide fumes
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear
Specific Hazards: May react with reducing agents, heat may trigger decomposition
Personal Precautions: Wear personal protective equipment, ensure adequate ventilation, avoid breathing dust
Environmental Precautions: Prevent further leakage or spillage if safe, keep away from drains, surface water, and soil
Cleanup Methods: Collect spilled material using non-sparking tools, place in a properly labeled container for disposal, wash contaminated area with plenty of water, ventilate area and monitor for airborne particles
Handling: Avoid contact with skin, eyes, and clothing; handle in a chemical fume hood or well-ventilated area; use dust suppression methods
Storage Conditions: Store in tightly closed, labeled containers away from incompatible substances (strong acids, reducing agents), keep in a cool, dry, well-ventilated area, avoid exposure to sunlight, moisture, and extreme temperatures
Special Requirements: Avoid storage with flammable, combustible, or volatile materials; segregate from food and beverages
Exposure Limits: No established occupational exposure limits for Silver Selenite, use as low as reasonably achievable principles; Selenium compounds (OSHA TWA): 0.2 mg/m3
Engineering Controls: Local exhaust ventilation, use chemical fume hood, avoid generating dust
Personal Protective Equipment: Wear gloves (nitrile, neoprene), safety goggles, protective clothing, and appropriate respiratory protection (e.g., P3 filter for particulates)
Hygiene Measures: Wash hands before eating, drinking, or smoking; avoid touching face during use; remove contaminated clothing and wash before reuse
Appearance: White or off-white crystalline powder
Odor: Odorless
Melting Point: Decomposes before melting
Solubility in Water: Slightly soluble
Density: Approx. 6.5 g/cm3
pH: Not applicable
Flash Point: Not flammable
Boiling Point: Decomposes
Vapor Pressure: Not significant at ambient conditions
Other Properties: Stable under standard conditions but sensitive to strong acids and reducing agents
Chemical Stability: Stable at room temperature in closed containers under normal handling and storage
Conditions to Avoid: Heat, moisture, strong acids, strong reducing agents
Incompatible Materials: Acids, organic materials, reducing agents
Decomposition Products: Toxic selenium oxide fumes, silver compounds
Reactiveness: Strong oxidizer, avoid unsupervised mixing with combustibles
Acute Toxicity: Harmful if swallowed, inhaled, or absorbed through skin
Chronic Toxicity: Selenium compounds may affect liver, kidneys, and central nervous system
Symptoms: Nausea, vomiting, headache, metallic taste, skin or eye irritation; high-level or chronic exposure may cause “selenosis” (brittle hair, nail loss, neurological complaints)
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Carcinogenicity: Selenium classified as possibly carcinogenic (IARC Group 2B); silver has no known carcinogenic risks at occupational exposures
Other Data: No evidence of reproductive toxicity in humans, but risk remains due to selenium’s bioaccumulation
Aquatic Toxicity: Silver and selenium compounds are very toxic to aquatic life, may cause long-lasting adverse effects
Persistence and Degradability: Does not degrade readily; selenium and silver persist in the environment
Bioaccumulation Potential: Selenium bioaccumulates in organisms, may biomagnify up the food chain
Mobility in Soil: Likely to bind to soils and sediments, low mobility
Other Adverse Effects: Toxic to invertebrates and fish, precautions required to avoid environmental contamination, improper release can disrupt entire aquatic food webs
Waste Treatment: Collect all waste in appropriate containers, do not dispose through household drains or natural environment
Disposal Methods: Dispose of via licensed waste handler or hazardous waste incineration facility, observe local, national, and regional regulations
Packaging: Use tightly sealed, labeled packaging resistant to breakage, segregate from regular wastes
Special Considerations: Do not mix with incompatible chemicals or non-hazardous wastes; empty containers may retain product residue and should be handled with the same caution as the full material
UN Number: 3288
Proper Shipping Name: Toxic Solid, Inorganic, N.O.S. (Silver Selenite)
Hazard Class: 6.1 (Toxic substances)
Packing Group: II
Labels: Toxic
Environmental Hazards: Marine pollutant, notify carrier and authorities if spilled
Transport Precautions: Avoid rough handling, keep containers upright, avoid temperature extremes and moisture, conform to national and international regulations
Safety, Health, and Environmental Regulations: Subject to TSCA (United States), REACH (Europe), and other chemical inventory regulations
Hazard Symbols: Xn (Harmful), N (Dangerous for the environment)
Risk Phrases: R23/25 (Toxic by inhalation and if swallowed), R33 (Danger of cumulative effects)
Safety Phrases: S20/21 (Avoid contact with skin and eyes), S45 (In case of accident or if you feel unwell, seek medical advice immediately), S60 (This material and its container must be disposed of as hazardous waste)
Other Requirements: Labelling and documented employee training needed per OSHA Hazard Communication Standards or corresponding local laws; keep up with updates from regional substance and poison control center notifications
