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Product Name: 1-Bromobutane
Chemical Formula: C4H9Br
Synonyms: Butyl bromide, n-Butyl bromide
CAS Number: 109-65-9
Recommended Use: Laboratory reagent, industrial solvent, chemical intermediate
Manufacturer Details: Provided on shipment packaging
Emergency Phone: Local poison control center, emergency response teams, or supplier hotline
Classification: Flammable liquids (Category 3), Acute toxicity (oral, Category 4), Acute aquatic toxicity (Category 2), Skin irritation (Category 2), Eye irritation (Category 2A), Specific organ toxicity—single exposure (Category 3, drowsiness, dizziness)
Signal Word: Warning
Hazard Statements: Causes skin irritation, may cause drowsiness or dizziness, toxic to aquatic life, harmful if swallowed, causes serious eye irritation, flammable liquid and vapor
Pictograms: Flame, exclamation mark, environment
Precautionary Statements: Avoid breathing fumes or vapors, work in well-ventilated area, keep away from open flame or sparks, wear suitable PPE, do not allow product to reach water systems
Chemical Name: 1-Bromobutane
CAS Number: 109-65-9
Percentage: >99% by weight
Impurities: Trace levels of 2-bromobutane and similar aliphatic bromides (usually <0.5%)
Inhalation: Move person to fresh air; seek medical attention for shortness of breath, drowsiness, or persistent cough
Skin Contact: Quickly remove contaminated clothing; wash affected skin with soap and large amounts of water for at least 15 minutes; consult medical care if irritation continues
Eye Contact: Rinse eyes with running water for at least 15 minutes holding eyelids open; get immediate medical help if pain, redness, or vision changes persist
Ingestion: Rinse mouth with water; do not induce vomiting; give water to drink; never give anything by mouth to unconscious person; get medical advice quickly
Symptoms of Exposure: Headache, dizziness, fatigue, nausea, skin redness or rash, stinging or burning in eyes
Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical powder, carbon dioxide
Unsuitable Extinguishing Media: Direct water stream may risk chemical spread
Hazardous Combustion Products: Hydrogen bromide, carbon monoxide, carbon dioxide, bromine gas
Specific Hazards: Vapors can form explosive mixtures with air; run-off may contaminate water supplies; closed containers can rupture due to pressure build-up
Protective Equipment: Firefighters wear self-contained breathing apparatus and full protective gear
Personal Precautions: Evacuate unnecessary personnel; wear protective gloves, goggles/face shield, chemical-resistant clothing; ensure proper ventilation
Environmental Precautions: Prevent entry to sewers, drains, waterways; notify authorities of large spills that enter environment
Clean-up Methods: Absorb small spills with inert materials (e.g. vermiculite, sand); collect and place in chemical waste drum; ventilate area; wash with water and detergent after removal
Decontamination: All cleanup workers avoid contact with skin and eyes; remove contaminated clothing and wash before reuse
Handling: Only use in areas with good ventilation; avoid breathing vapor or mist; no sources of ignition nearby; use spark-proof tools; do not smoke, eat, or drink during use
Storage: Keep tightly closed in cool, dry, well-ventilated location; separate from oxidizers, alkalis, and acids; store away from food and beverages; keep containers upright and labeled
Incompatibilities: Prevent contact with strong oxidizing agents, sodium, potassium, magnesium, chemically active metals
Shipping: Transport in approved containers, avoid excessive heat and sunlight
Occupational Exposure Limit: No established limit for 1-bromobutane in most jurisdictions
Engineering Controls: Local exhaust ventilation, fume hoods, emergency shower and eyewash stations
Personal Protection: Impervious gloves (nitrile, neoprene), safety goggles, face shield for splash risk, flame-resistant lab coat, closed-toe chemical-resistant footwear
Respiratory Protection: Organic vapor cartridge respirator if ventilation inadequate
Hygiene Measures: Wash hands after handling, keep food away from chemical area, do not wear contaminated clothing outside controlled zone
Appearance: Colorless liquid
Odor: Sweet, ether-like
Odor Threshold: 0.94 ppm
pH: Not applicable
Melting Point/Freezing Point: -112°C
Boiling Point: 101°C
Flash Point: 37°C (closed cup)
Evaporation Rate: Moderate (butyl acetate = 1)
Flammability: Flammable; vapor/air mixtures may ignite
Explosion Limits: Lower: 1.8%, Upper: 7.6% (in air)
Vapor Pressure: 16 mm Hg at 20°C
Vapor Density: 4.5 (air = 1)
Solubility: Poorly soluble in water (<1g/100ml), miscible with most organic solvents
Partition Coefficient (log Kow): 2.4
Autoignition Temperature: 285°C
Decomposition Temperature: Not specified
Viscosity: 0.49 mPa·s at 20°C
Density: 1.27 g/cm³ at 20°C
Chemical Stability: Stable under recommended storage conditions
Conditions to Avoid: Exposure to heat, sparks, flame; contact with incompatible materials
Materials to Avoid: Strong oxidizers, alkali metals, reducing metals (e.g. sodium, potassium), ammonia, strong bases
Hazardous Decomposition: Hydrogen bromide, bromine, carbon monoxide, carbon dioxide on combustion
Hazardous Polymerization: Not anticipated under normal conditions
Acute Toxicity: Oral LD50 (rat): 2,000 mg/kg; inhalation LC50 (rat): 8000 mg/m3 4h; limited skin toxicity
Irritation/Corrosivity: Causes skin and eye irritation; may cause respiratory irritation
Sensitization: No sensitizing effects known
Chronic Effects: Prolonged or repeated exposure leads to liver or kidney effects in lab tests; possible CNS depression
Carcinogenicity: Not listed as carcinogen by IARC, NTP, ACGIH, or OSHA
Mutagenicity: Results not conclusive; precaution advised
Reproductive Toxicity: Insufficient data for assessment
Target Organs: Central nervous system, liver, kidneys, lungs
Symptoms of Overexposure: Drowsiness, headache, nausea, dry throat, skin redness
Aquatic Toxicity: Toxic to aquatic organisms; acute EC50 (daphnia, 48h): 20 mg/L; LC50 (fish, 96h): 47 mg/L
Persistence and Degradability: Not rapidly biodegradable in water; photodegradation in air
Bioaccumulation: Moderate potential (log Kow 2.4)
Mobility in Soil: Limited mobility; binds to soil organic matter
Other Adverse Effects: Avoid release to environment by accidental spills
Waste Treatment Methods: Consult local hazardous waste disposal company; incineration in approved facility preferred
Unused Product: Dispose as special waste according to regional and federal regulations
Contaminated Packaging: Empty containers remain hazardous; triple rinse and dispose through licensed handler
Environmental Precautions: Never pour down drain, on ground, or in water body
UN Number: UN1126
Proper Shipping Name: 1-Bromobutane
Transport Hazard Class: 3 (Flammable Liquid)
Packing Group: III
Marine Pollutant: Yes
Labels Required: Flammable liquid
Special Precautions for Transport: No smoking, keep away from sparks, use inert gas blanketing if needed, inspect container before shipping
OSHA Hazard Communication: Meets hazardous chemical criteria
SARA Title III: Section 313 reporting not required; included in Section 311 / 312
EPA TSCA Status: Listed
EINECS/ELINCS: 203-691-9
Canada (DSL/NDSL): Listed
Other Local Regulations: Refer to relevant agency for country-specific guidance
Label Information: Follows GHS labeling standards
