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Product Name: N-Butyl N-Butyrate
Chemical Formula: C8H16O2
Synonyms: Butyl butanoate, Butanoic acid butyl ester
CAS Number: 109-21-7
Recommended Use: Used as a solvent in paints, coatings, and fragrances; intermediate in organic synthesis
Manufacturer: Contact information provided on shipping documents
Emergency Contact: Local emergency response phone, company 24-hour hotline
UN Number: 1149
Relevant Identifiers: EC Number 203-652-6
Classification: Flammable liquid (Category 3), Eye irritation (Category 2A), Skin irritation (Category 2)
Label Elements: Pictogram: Flame, Exclamation Mark
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor; Causes skin irritation; Causes serious eye irritation
Precautionary Statements: Keep away from heat, sparks, open flames; Wear protective gloves and eye protection; Wash hands thoroughly after handling; Use only in well-ventilated areas
Other Hazards: May cause drowsiness or dizziness; Vapor heavier than air, risk of accumulation in low-lying areas
Chemical Identity: N-Butyl N-Butyrate
Concentration: 98-100%
Impurities: Typical trace esters and alcohols below 1%
Hazard Components: Single component substance
Regulatory Numbers: TSCA-listed
Inhalation: Move to fresh air; seek medical attention if symptoms persist; provide oxygen if breathing is difficult
Skin Contact: Remove contaminated clothing; wash affected area with soap and water; seek medical advice for persistent irritation
Eye Contact: Rinse cautiously with water for at least 15 minutes; remove contact lenses if present and easy to do; continue rinsing; seek medical attention immediately
Ingestion: Do not induce vomiting; rinse mouth with water; seek immediate medical attention
Most Important Symptoms: Irritation, redness, dizziness, headache; possible respiratory discomfort
Advice for Medical Personnel: Treat based on symptoms; ensure airway and breathing; monitor vitals
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray (not jet)
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, possibly other toxic vapors
Special Protective Equipment: Self-contained breathing apparatus, full firefighting turnout gear
Special Fire Fighting Procedures: Avoid breathing vapors; cool containers with water spray; evacuate area; prevent runoff to drains
Unusual Fire Hazards: Vapor may travel and flashback; flammable vapor accumulation possible in confined areas
Personal Precautions: Evacuate nonessential personnel; ventilate area; use appropriate PPE (gloves, goggles, mask)
Environmental Precautions: Prevent entry into drains, sewers, waterways; notify relevant environmental authorities
Methods for Cleaning Up: Contain spill using inert absorbent (sand, soil, vermiculite); collect in sealable, labeled containers for disposal; ventilate area well
Other Notes: Eliminate ignition sources immediately; large spills require emergency response team
Safe Handling: Use spark-proof tools; ground/bond containers and equipment; open containers slowly to release pressure; avoid inhalation and skin contact
Storage Conditions: Store in tightly closed, clearly labeled containers; keep in cool, well-ventilated location away from sources of ignition, oxidizers, acids
Incompatible Materials: Strong acids, strong bases, oxidizing agents
Special Rules: No smoking or open flames; secondary containment recommended for bulk storage; inspect storage containers regularly for leaks or degradation
Specific End Uses: Only for uses specified by manufacturer or supplier
Exposure Limits: Not established for this specific substance; maintain exposure as low as reasonably achievable
Engineering Controls: Local exhaust ventilation, splash guards, eye wash stations, safety showers
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), safety goggles or face shield, flame-retardant protective clothing, respiratory protection in poorly ventilated areas
Workplace Hygiene: Wash thoroughly after handling; avoid eating, drinking, or smoking in work area; launder contaminated clothing before reuse
Appearance: Clear, colorless liquid
Odor: Fruity, characteristic ester odor
pH: Not available (neutral in solution)
Melting Point/Range: -90°C
Boiling Point/Range: 167-171°C
Flash Point: 47°C (closed cup)
Evaporation Rate: Moderate (compared to butanol)
Flammability: Flammable liquid
Explosive Limits: Lower 0.9% | Upper 7.5% (v/v in air)
Vapor Pressure: 2.6 mmHg @ 20°C
Vapor Density: 4.9 (air = 1)
Relative Density: 0.87 @ 20°C
Solubility: Slightly soluble in water (0.25 g/100 mL); miscible with organic solvents
Partition Coefficient (log Kow): 2.3
Autoignition Temperature: 400°C
Decomposition Temperature: No data
Viscosity: 0.7 mPa.s @ 25°C
Chemical Stability: Stable under recommended storage conditions
Reactivity: No dangerous reactions under normal conditions
Conditions to Avoid: High temperatures, open flames, static discharge
Incompatible Materials: Strong oxidizers, acids, bases; may attack certain plastics or rubbers
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, butyric acid fumes if heated or burned
Polymerization: Does not occur under normal storage/handling
Acute Toxicity: Oral LD50 (rat) ~4,360 mg/kg; Dermal LD50 (rabbit) ~4,200 mg/kg; inhalation not well defined
Irritation: Causes mild to moderate skin and eye irritation; prolonged exposure increases irritation
Sensitization: Not classified as a skin sensitizer
Target Organ Effects: Central nervous system depression with high vapor exposure
Chronic Exposure: No evidence of carcinogenicity; chronic irritation possible with repeated or prolonged contact
Other Effects: Drowsiness, headache, dizziness from inhalation of high concentrations
Aquatic Toxicity: Fish (Lepomis macrochirus) LC50 (96h): ~22 mg/L; invertebrates (Daphnia magna) EC50 (48h): ~20 mg/L
Bioaccumulation Potential: Low to moderate (log Kow = 2.3) – can accumulate in aquatic organisms
Persistence and Degradability: Readily biodegradable under aerobic conditions
Mobility in Soil: Low to moderate; may leach to groundwater
Other Information: Do not release untreated into environment; toxic to aquatic organisms at high concentrations
Waste Treatment Methods: Incinerate in chemical incinerator equipped with afterburner and scrubber; absorb in inert material for small quantities
Disposal of Product: According to local, regional, national regulations; classified as hazardous waste
Disposal of Packaging: Rinse and dispose of in accordance with regulatory guidelines; do not reuse empty containers
Precautions: Do not pour down drain or into surface water; avoid release to environment
UN Number: 1149
UN Proper Shipping Name: Butyl Butyrates
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Marine Pollutant: Not classified as a marine pollutant
Special Precautions: Keep containers upright and sealed; segregate from incompatible materials
Regulatory References: Follows ADR, IMDG, IATA, DOT rules for flammable liquids
Classification and Labeling: GHS, OSHA Hazard Communication Standard, EU CLP
Inventory Status: Listed on TSCA, REACH pre-registered/registered, DSL, AICS
Restrictions: Use limitations may apply in certain jurisdictions for occupational exposure
SARA Title III: Not listed as extremely hazardous, no specific RQ or TPQ
Other Regulations: Not subject to export control; follow local laws for handling and disposal; not listed as a carcinogen by IARC, NTP, or OSHA
