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Product Name: Silver Oxide
Chemical Formula: Ag2O
Synonyms: Silver monoxide
CAS Number: 20667-12-3
Intended Use: Laboratory chemical, battery material, catalyst, antimicrobial agent
Manufacturer: Most reputable chemical suppliers, including global industrial and laboratory distributors
Emergency Contact: Local chemical safety authority or company emergency telephone
Physical Appearance: Black or dark brown powder
Signal Word: Warning
Hazard Statements: May cause skin irritation, respiratory irritation; harmful if swallowed; may cause eye irritation; hazardous to aquatic life
Pictograms: Exclamation mark, environment
Precautionary Statements: Avoid breathing dust, wash hands thoroughly after handling, use only outdoors or in well-ventilated areas, avoid release to the environment, wear protective gloves and eye protection
Chemical Name: Silver Oxide
Common Name: Silver monoxide
Concentration: 98-100% Ag2O
Impurities: Trace amounts of silver nitrate or metallic silver (if produced by chemical reduction)
Molecular Weight: 231.74 g/mol
Inhalation: Remove to fresh air, support breathing if necessary, seek medical attention for persistent symptoms
Skin Contact: Flush with ample water and mild soap, remove contaminated clothing, consult physician if irritation develops
Eye Contact: Rinse immediately with water for a minimum of 15 minutes, do not rub eyes, seek medical attention for prolonged discomfort
Ingestion: Rinse mouth with water, do not induce vomiting, call poison control center or physician immediately
Suitable Extinguishing Media: Use dry chemical, foam, or carbon dioxide; water spray for large fires
Hazardous Combustion Products: Silver fumes, oxides of silver
Protective Equipment: Wear self-contained breathing apparatus and protective clothing
Special Hazards: Silver oxide may intensify fire with combustible materials; isolate scene and evacuate area
Special Procedures: Move undamaged containers from fire area if safe, cool containers with flooding amounts of water
Personal Precautions: Evacuate spill area, ventilate area, avoid dust formation, wear protective equipment
Environmental Precautions: Prevent entry into drains, sewers, and waterways; report release as required by local regulations
Cleanup Methods: Sweep or scoop spilled material into secure containers for disposal, avoid creating airborne dust, decontaminate affected surfaces with water
Safe Handling: Use in chemical fume hood or well-ventilated environment, wash hands thoroughly after handling, do not eat or drink during use, avoid contact with combustible materials
Storage Conditions: Store in tightly closed containers in cool, dry, well-ventilated area, separate from acids, reducing agents, and combustible substances, protect from sunlight and moisture
Incompatible Materials: Strong acids, strong reducing agents, organic materials
Exposure Limits: OSHA PEL for silver: 0.01 mg/m3 (as Ag, TWA); ACGIH TLV: 0.01 mg/m3 (TWA)
Engineering Controls: Fume hoods, local exhaust ventilation, dust collection systems
Personal Protective Equipment: Chemical-resistant gloves, safety goggles, lab coat, approved particulate respirator for high dust concentrations
Hygiene Measures: Do not eat, drink, or smoke in work area, remove contaminated clothing and wash before reuse, wash skin thoroughly after handling
Appearance: Black or brownish-black crystalline powder
Odor: Odorless
Melting Point: Decomposes at 280°C
Boiling Point: Not applicable
Solubility: Practically insoluble in water, reacts with acids to form soluble silver salts
Vapor Pressure: Not applicable
Density: Approximately 7.14 g/cm3
pH: Not determined in water
Partition Coefficient: Not applicable
Flash Point: Not flammable
Other Properties: Decomposes on heating, releasing oxygen and silver metal
Chemical Stability: Stable under recommended storage and handling conditions
Reactive Properties: Can act as an oxidizing agent; exothermic reactions with reducing agents
Conditions to Avoid: Exposure to heat, friction, vibrations, contact with acids or organics
Incompatible Materials: Strong acids, ammonia, hydrazine, sulfur, phosphorus, organic materials, easily oxidized substances
Decomposition Products: Metallic silver, oxygen gas
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Effects: Dust may irritate respiratory system, may cause mild skin and eye irritation, harmful if swallowed
Chronic Effects: Prolonged exposure can cause argyria (bluish-gray skin discoloration due to silver deposits), possible damage to liver and kidneys
Carcinogenicity: Not classified as carcinogenic by ACGIH, IARC, NTP, OSHA
Reproductive Toxicity: No conclusive evidence from current studies
Other Information: Individuals with pre-existing skin, kidney, or respiratory conditions may be at increased risk
Toxicity to Aquatic Life: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Does not degrade in environment, persistent as metallic silver or silver oxide
Bioaccumulative Potential: Potential to bioaccumulate in aquatic organisms
Mobility in Soil: Low mobility; binds strongly to sediment and soil
Other Adverse Effects: Avoid unauthorized release to environment
Waste Disposal: Collect as hazardous waste; do not dispose of in household garbage or domestic sewage; follow local, regional, and national regulations for silver-containing wastes
Container Disposal: Use certified hazardous waste contractors, do not reuse emptied containers
Recommended Treatment: Recover and recycle silver content where possible to minimize environmental impact
UN Number: 3077
Proper Shipping Name: Environmentally Hazardous Substance, Solid, N.O.S. (Silver Oxide)
Transport Hazard Class: Class 9 (Miscellaneous Hazardous Material)
Packing Group: III
Label: Environmentally hazardous
Special Provisions: Keep containers tightly closed to avoid release; ensure segregation from acids and reducing agents; follow all international, national, and local transport requirements
TSCA Status: Listed on Toxic Substances Control Act Inventory in the US
REACH Registration: Registered in accordance with European regulations
OSHA: Regulated as a hazardous chemical
SARA 313: Subject to reporting due to silver content
WHMIS Classification: D2B (toxic materials, Canada)
Other Regulations: Subject to regional environmental and health & safety controls; users should consult national legislation for specific regulatory requirements for storage, handling, and disposal of silver compounds
