Synonyms: Silver(I)Nitrate, Lunar Caustic
Formula Weight: 169.87 (63.5% Silver metal by weight)
Chemical Formula: AgNO3
Reportable Quantity: 454 grams
Silver Nitrate: 99.9%
Health Rating: 2 – Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury.
Flammability Rating: 0 – None
Reactivity Rating: 0 – Normally stable, even under fire exposure conditions, and is not reactive with water.
Contact Rating: 3 – Severe (Corrosive)
Lab Protective Equip: Safety goggles and/or face shield. Latex gloves. Good ventilation.
Storage Color Code: Yellow (Reactive)
Inhalation: Remove to fresh air. Crystals will sting the nasal passages. Get medical attention as soon as possible.
Ingestion: If swallowed, Do not induce vomiting. Give a quantity of salt water. The salt water and/or stomach acid will immediately form Silver Chloride, which is much less harmful. Get medical attention immediately if the quantity ingested is more than a gram.
Skin Contact: Rub skin with table salt and a little water. Skin will probably turn dark when exposed to sunlight. Stain will vanish in a few weeks.
Eye Contact: Immediately flush eyes with plenty of distilled water. The salt in tears will form white Silver Chloride immediately. This Silver Chloride may attach to the eye. Get medical attention immediately.
Fire: Use an extinguishing agent suitable for surrounding fires.
Explosion: Reacts with ammonia to form an explosive Fulminating Silver when dry.
Wear protective equipment. Clean up in a way that doesn’t disperse the crystals into the air. If it is released into water, add table salt to immediately form the less harmful Silver Chloride.
Special Note: Disposal of even small quantities of silver nitrate in waste systems connected to a septic tank is guaranteed to destroy the septic bacteria and require pumping out, flushing and seeding with fresh bacteria.
Store in a closed container. Silver Nitrate is not very light sensitive, it does absorb air moisture.
OSHA Permissible Exposure Limit (PEL): 0.01 mg/m3 (TWA) as silver metal dust
ACGIH Threshold Limit Value (TLV): 0.01 mg /m3 (TWA) as soluble silver compounds
Appearance: Transparent white colored crystals.
Solubility: 2190g/1000ml water @ 20°C (68°F).
Specific Gravity: 4.352
Boiling Point: 444°C (831°F) Decomposes.
Melting Point: 212°C (414°F) – Forms a brown, viscous liquid.
Vapor Density (Air=1): 4.4
Vapor Pressure (mm Hg): Very low.
Stability: Stable at room temperature in sealed containers.
Hazardous Decomposition Products: Oxides of nitrogen.
Incompatibilities: Ammonia. Forms explosive when dry.
Conditions to Avoid: Do not allow solutions of Silver Nitrate and Ammonia to dry out.
Domestic (Land, DOT)
Hazard Class: 5.1
Packing Group: II
UN/NA: USPS Publication 52, Silver Nitrate is their item number UN1493
ORM-D: USPS Can ship within United States only.
ORM-D Packaging instruction 5A: Consumer Commodity ORM-D AIR – the weight of the contents of the primary packing container cannot exceed 1 kg. USPS publication 52, Appendix C, 1999 page 291. link
Outer Packaging: A strong outer packaging that is capable of firmly and securely holding the primary receptacle and cushioning material is required.
International Mail: Prohibited.
Domestic Mail: Permitted via air transportation (i.e., Express Mail, Priority Mail, and First-Class Mail rates) or surface transportation (i.e.,Standard Mail rates).
Salt Lake Metals
1115 East Brigadoon Court
Salt Lake City, UT 84117