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Material Safety Data Sheet (MSDS) – Ammonium Acetate

Identification

Product Name: Ammonium Acetate
Chemical Formula: C2H7NO2
Synonyms: Acetic acid, ammonium salt
CAS Number: 631-61-8
Intended Use: Laboratory reagent, manufacturing, food additive
Supplier Information: Name, address, emergency phone number provided by sourcing company

Hazard Identification

Classification: Not classified as hazardous by GHS standards
Main Dangers: Irritation to eyes, skin, and respiratory tract seen from prolonged exposure
Physical Hazards: No major explosive or flammable risks; can create slight dust hazard outdoors
GHS Label: No pictograms required, precautionary statements for basic hygiene
Safety Precautions: Wear personal protective equipment, avoid contact and inhalation
Potential Health Effects: Eyes: Redness, tearing, mild discomfort; Skin: Redness, irritation; Inhalation: Throat soreness, coughing; Ingestion: Nausea, mild gastrointestinal upset

Composition / Information on Ingredients

Chemical Name: Ammonium Acetate
Concentration: 99–100%
Impurities: Trace moisture, negligible effect on hazard profile
Other Components: No significant stabilizers or complexing agents used
EC Number: 211-162-9

First Aid Measures

Eye Contact: Rinse with clean water for 10–20 minutes, remove contact lenses, seek medical response if irritation persists
Skin Contact: Wash thoroughly with soap and water, discard contaminated clothing, get medical advice for prolonged discomfort
Inhalation: Move victim to fresh air, maintain open airway, provide artificial respiration if not breathing, call for medical help if symptoms continue
Ingestion: Rinse mouth, do not induce vomiting, drink water only if fully conscious, get prompt medical attention for large intakes or ongoing symptoms

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical powder, carbon dioxide, or foam
Specific Hazards: Emits ammonia and acetic acid vapors on decomposition at high temperatures
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full body gear
Special Procedures: Isolate scene, use water spray to cool containers, prevent run-off from entering drains

Accidental Release Measures

Personal Precautions: Ventilate area, wear gloves, goggles, mask, avoid powder contact
Environmental Measures: Avoid discharge into drains, soil, or water bodies
Clean-Up Methods: Sweep or scoop material into suitable container for recovery or disposal, wash affected area with water and detergent

Handling and Storage

Handling: Use only in well-ventilated locations, minimize dust, avoid direct skin and eye contact, employ recommended protective equipment
Storage Conditions: Store in tightly sealed containers, away from heat, moisture, or incompatible substances like strong acids and oxidizers
Container Requirements: Use corrosion-proof, labeled containers, check integrity regularly
Special Rules: Prohibit food and drink where chemical is used or stored

Exposure Controls and Personal Protection

Exposure Limits: No established OSHA or ACGIH limits; minimize unnecessary exposure
Ventilation: Use general and local exhaust as needed for dust or vapor control
Personal Protective Equipment: Safety goggles, chemical resistant gloves, lab coat or overalls, respiratory protection for large quantities or confined spaces
Hygiene Practices: Wash hands thoroughly after handling, keep work clothes separate, avoid ingestion and inhalation

Physical and Chemical Properties

Appearance: White, crystalline solid or powder
Odor: Slight acetic (vinegar-like) smell
Solubility: Completely soluble in water
pH (5% solution): 7–8
Melting Point: 114°C
Boiling Point: Decomposes before boiling
Vapor Pressure: Negligible at room temperature
Density: Approximately 1.07 g/cm³
Flash Point: Not flammable under normal conditions

Stability and Reactivity

Chemical Stability: Stable at room temperature, breaks down over time when exposed to air or moisture
Hazardous Reactions: May react with strong acids to form acetic acid vapors; ammonia may be released if heated significantly
Incompatible Materials: Strong acids, strong bases, oxidizers, nitrites
Decomposition Products: Ammonia, acetic acid vapors

Toxicological Information

Routes of Exposure: Inhalation, ingestion, skin or eye contact
Acute Toxicity: Oral LD50 (rat) about 6320 mg/kg; considered low toxicity
Chronic Effects: Long-term exposure may cause skin irritation, no known carcinogenic, mutagenic, or reproductive effects
Sensitization: Not known to cause allergic reactions
Other Effects: May aggravate pre-existing lung or skin conditions if exposures remain uncontrolled

Ecological Information

Aquatic Toxicity: Low toxicity to fish and aquatic life, high concentrations can alter pH of water
Persistence and Degradability: Readily biodegradable in soil and water
Bioaccumulative Potential: Not expected to bioaccumulate
Soil Mobility: High mobility in moist soils due to water solubility
Other Adverse Effects: Avoid direct release to waterways or sewers

Disposal Considerations

Waste Disposal: Dispose of as non-hazardous laboratory chemical waste if possible, use incineration or chemical landfill
Packaging: Contaminated containers should be rinsed and discarded as per local laws
Environmental Caution: Avoid disposal that could contaminate water sources, follow local/national environmental regulations

Transport Information

UN Number: Not assigned, not regulated as a dangerous good
Transport Hazard Class: Not classified as hazardous for shipping
Proper Shipping Name: Ammonium Acetate
Packing Group: Not assigned
Special Precautions: Stow away from incompatible chemicals, prevent spills during loading/unloading

Regulatory Information

Inventory Status: Listed on TSCA, EINECS, DSL chemical inventories
Labeling Requirements: No specific hazard labels needed, ensure workplace labeling follows local occupational safety rules
SARA Title III: Not subject to Section 302, 304, or 313 reporting
California Proposition 65: Not listed
Other Regulations: Handlers must comply with OSHA safe work rules, chemical hygiene plans, workplace exposure controls