Product Name: Ammonium Bismuth Citrate
Chemical Formula: C6H8BiNO7
SYNONYMS: Bismuth ammonium citrate
CAS Number: 20665-61-0
Recommended Use: Laboratory reagent, photography, industrial processes
Manufacturer Contact: Listed on container label
Emergency Phone Number: Listed on container label
GHS Classification: Not classified as a hazardous chemical by GHS criteria
Hazard Statements: May cause mild irritation to eyes, skin, and respiratory tract with overexposure
Precautionary Statements: Use in well-ventilated area, avoid dust formation
Pictograms: No GHS symbol required
Target Organs: Eyes, skin, mucous membranes
Routes of Exposure: Inhalation, ingestion, skin contact, eye contact
Chemical Name: Ammonium Bismuth Citrate
CAS Number: 20665-61-0
Concentration: 98-100% (pure)
Impurities: Trace amounts of heavy metals (lead, arsenic) possible as synthesis by-products
Molecular Weight: 426.11 g/mol
Inhalation: Move affected person to fresh air, loosen tight clothing, support breathing as needed, seek medical attention if symptoms develop
Skin Contact: Wash skin thoroughly with soap and water for at least 15 minutes, remove contaminated clothing, get medical help if irritation persists
Eye Contact: Flush eyes gently with plenty of water for several minutes, lift eyelids occasionally, seek ophthalmologic attention for persistent irritation
Ingestion: Rinse mouth with water if conscious, do not induce vomiting, drink water to dilute, obtain medical attention for any symptoms
Most Important Symptoms and Effects: Irritation, cough, redness, nausea
Note to Physician: Treat symptomatically, supportive care, no known specific antidote
Suitable Extinguishing Media: Use water spray, dry chemical, foam, or carbon dioxide (CO2)
Unsuitable Extinguishing Media: Direct streams of water
Hazardous Combustion Products: Releases oxides of nitrogen, bismuth, ammonia, and carbon monoxide under fire conditions
Special Protective Equipment: Wear self-contained breathing apparatus (SCBA) and full protective clothing for large fires
Specific Hazards: Decomposition may release toxic or corrosive gases
Advice for Firefighters: Keep containers cool with water spray, avoid inhaling fumes, evacuate area if needed
Personal Precautions: Wear protective gloves, goggles, and suitable respiratory protection
Environmental Precautions: Prevent spills from reaching drains, surface water, or soil
Spill Cleanup Methods: Sweep up carefully to avoid dust, place in suitable container, clean spill area with water and detergent
Disposal: Dispose of collected waste as hazardous material according to local regulations
Decontamination: Wash area thoroughly, ventilate the affected space
Safe Handling Advice: Work in a well-ventilated area, avoid breathing dust, minimize skin contact, keep away from food and beverages
Hygiene Practices: Wash hands and exposed skin thoroughly after handling
Storage Requirements: Keep in tightly closed container in cool, dry, well-ventilated location, protect from moisture and incompatible substances
Incompatibilities: Strong acids and alkalis, oxidizing agents
Storage Conditions: Avoid exposure to heat, sunlight, and humid environments
Occupational Exposure Limits: No established OSHA or ACGIH exposure limits for this compound
Engineering Controls: Use local exhaust ventilation or process enclosures to control airborne dust
Personal Protective Equipment (PPE):
Gloves: Chemical-resistant gloves
Eye/face Protection: Safety goggles or face shield
Respiratory Protection: Particulate-filtering respirator (N95 or higher) if dust generated
Clothing: Lab coat or coveralls
Environmental Controls: Prevent release to the environment with appropriate filtration and containment
Appearance: White to pale yellow crystalline powder
Odor: Odorless
pH: Neutral to slightly acidic in aqueous solution
Melting Point: Decomposes before melting
Boiling Point: Not applicable (decomposes)
Flash Point: Not flammable
Solubility in Water: Soluble
Vapor Pressure: Negligible at room temperature
Density: Approximately 2.2–2.3 g/cm³
Partition Coefficient (n-octanol/water): Not determined
Evaporation Rate: Not applicable
Auto-Ignition Temperature: Not self-igniting
Decomposition Temperature: Data not available
Chemical Stability: Stable at normal temperature and pressure if kept dry
Possible Hazardous Reactions: Reacts with strong acids or alkalis, releases ammonia and bismuth compounds
Conditions to Avoid: High humidity, exposure to strong oxidizers, extreme heat
Incompatible Materials: Strong acids, strong bases, oxidizers
Hazardous Decomposition Products: Nitrogen oxides, ammonia, bismuth oxides, carbon oxides
Acute Toxicity: Low oral toxicity is anticipated based on available data, direct inhalation or ingestion may cause mild gastrointestinal symptoms
Irritation: Prolonged or repeated contact may cause mild skin and eye irritation
Corrosivity: Not expected to be corrosive
Sensitization: Sensitization reactions not reported
Chronic Effects: No evidence of chronic toxicity at low doses, prolonged exposure to bismuth compounds may affect kidneys and nervous system
Carcinogenicity: Not recognized as carcinogenic by IARC, NTP, or OSHA
Reproductive Toxicity: Effects not reported
Mutagenicity: Effects not reported
Target Organs: Kidneys, central nervous system (at high levels of bismuth exposure)
Ecotoxicity: Low toxicity to aquatic life based on known bismuth compounds, high concentrations may affect aquatic organisms
Persistence and Degradability: Expected to persist in the environment; does not degrade rapidly
Bioaccumulation Potential: Bismuth has low potential for bioaccumulation in aquatic organisms
Mobility in Soil: Limited mobility expected in soil, may bind to organic matter
Other Adverse Effects: Large spills could harm aquatic or terrestrial life
Waste Treatment Methods: Handle and dispose as hazardous industrial waste; incinerate or landfill in accordance with local, state, and federal regulations
Contaminated Packaging: Rinse empty containers thoroughly before recycling or disposal, treat wash water as hazardous
Special Disposal Precautions: Prevent from entering waterways, always consult authorities before disposal
UN Number: Not classified as a dangerous good under ADR, IATA, or IMDG
Transport Hazard Class: Not regulated
Packing Group: Not assigned
Environmental Hazards: Not marine pollutant
Special Transport Precautions: Protect containers from damage during transport, keep away from incompatible substances
Labels: No hazard label required under international transport rules
OSHA Status: Not specifically regulated
TSCA Inventory: Listed
SARA Title III (Sections 311/312): Not subject to reporting
California Proposition 65: Compound not listed
WHMIS Classification (Canada): Not controlled
Other Regulatory Status: Use consistent with workplace chemical safety laws and good industrial hygiene practices
