Material Safety Data Sheet for N-Propyl Bromide

Identification

Product Name: N-Propyl Bromide
Synonyms: 1-Bromopropane, nPB
Chemical Formula: C3H7Br
CAS Number: 106-94-5
Recommended Use: Solvent for cleaning, degreasing, adhesive sprays
Manufacturer Information: Contact information required for supplier or distributor
Emergency Contact: Poison control center or local emergency number relevant to user’s location

Hazard Identification

GHS Classification: Flammable liquid, Acute toxicity by inhalation, Skin and eye irritant, Reproductive toxicity, Specific target organ toxicity
Signal Word: Danger
Hazard Statements: Causes serious eye and skin irritation, Harmful if swallowed, Flammable liquid and vapor, May damage fertility or unborn child, Central nervous system depression
Pictograms: Flame, exclamation mark, health hazard, skull and crossbones
Precautionary Statements: Keep away from heat, Use in well-ventilated area, Wear protective clothing, Do not breathe vapors, Wash hands after use

Composition / Information on Ingredients

Chemical Name: N-Propyl Bromide
Concentration: ≥ 99%
Impurities: Possible trace quantities of 2-bromopropane, water, proprietary stabilizers
Other Information: Product does not contain additives beyond those required for shelf stability

First Aid Measures

Inhalation: Remove person to fresh air, keep at rest, seek medical advice if symptoms continue, administer oxygen if breathing is difficult
Skin Contact: Remove contaminated clothing, wash affected area with soap and water for at least 15 minutes, do not use solvents to clean skin
Eye Contact: Rinse thoroughly with water for several minutes, remove contact lenses, get medical attention immediately
Ingestion: Rinse mouth with water, do not induce vomiting, seek medical attention
Most Important Symptoms: Headache, nausea, dizziness, confusion, skin redness or blistering, respiratory irritation
Notes to Physician: Supportive care and symptomatic treatment, monitor for potential central nervous system depression, risk of delayed pulmonary edema

Fire-Fighting Measures

Suitable Extinguishing Media: Carbon dioxide, dry chemical, foam, water spray (do not use direct water jet)
Special Hazards: Vapors can form explosive mixtures with air, combustion produces toxic and corrosive fumes (hydrogen bromide, carbon oxides)
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear
Specific Methods: Use water spray to cool containers, prevent run-off from entering water sources or sewers, evacuate area if fire involves large quantities

Accidental Release Measures

Personal Precautions: Evacuate area, ensure adequate ventilation, eliminate ignition sources, use explosion-proof equipment and non-sparking tools
Environmental Precautions: Prevent spillage from entering drains, water bodies, soil; notify authorities if significant environmental impact suspected
Methods for Cleaning Up: Absorb spill with inert material, transfer to sealed labeled container for disposal, ventilate area after cleanup, decontaminate surfaces with detergent and water, dispose of contaminated materials safely

Handling and Storage

Handling: Use only in well-ventilated areas, ground containers and equipment, avoid breathing vapors and contact with skin or eyes, keep away from heat, sparks, open flames
Storage: Store in a tightly closed container, keep in a cool, dry, ventilated location away from sunlight, incompatible materials include acids, bases, oxidizers, aluminum
Special Requirements: Segregate from food and beverages, use secondary containment if possible, implement static discharge controls, provide emergency eyewash and safety shower in work area

Exposure Controls and Personal Protection

Occupational Exposure Limits: ACGIH TLV (2018) 0.1 ppm TWA, OSHA PEL not established at the federal level
Engineering Controls: Use local exhaust ventilation, explosion-proof ventilation systems, continuous air monitoring recommended for confined spaces
Personal Protective Equipment (PPE): Butyl rubber or other chemical-resistant gloves, chemical splash goggles, impervious protective clothing, NIOSH-approved respiratory protection (organic vapor cartridge or supplied-air) where exposure limits might be exceeded
Hygiene Measures: Remove contaminated clothing and wash thoroughly after handling, prohibit eating, drinking, and smoking in work areas, maintain eyewash stations and showers nearby

Physical and Chemical Properties

Appearance: Colorless liquid
Odor: Sweet, ether-like
Odor Threshold: 135 ppm
pH: Not applicable
Melting Point/Freezing Point: -110°C
Boiling Point: 71°C
Flash Point: 23°C (closed cup)
Evaporation Rate: Rapid
Flammability: Flammable
Vapor Pressure: 140 mmHg at 20°C
Vapor Density: 4.3 (air = 1)
Relative Density: 1.35 g/cm³ at 20°C
Solubility in Water: Slight (2.5 g/L at 25°C)
Partition Coefficient (log Kow): 2.1
Auto-Ignition Temperature: 407°C
Decomposition Temperature: 300°C (approx.)
Viscosity: Not determined

Stability and Reactivity

Chemical Stability: Stable under normal conditions, may decompose when exposed to heat, light, moisture
Conditions to Avoid: Heat, sparks, open flames, incompatible chemicals, direct sunlight
Incompatible Materials: Strong acids, strong bases, oxidizers, powdered metals, active metals (aluminum, potassium)
Hazardous Decomposition Products: Hydrogen bromide, bromine gas, carbon oxides, phosgene in a fire scenario
Hazardous Reactions: Exothermic reactions with reactive metals possible, polymerization does not occur without catalyst

Toxicological Information

Likely Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Effects: Central nervous system depression, dizziness, nausea, confusion, headache, drowsiness, skin and eye irritation
Chronic Effects: Peripheral neuropathy, reproductive toxicity, possible carcinogenicity based on animal studies
Toxicity Data: LD50 oral (rat): ~3,260 mg/kg; LC50 inhalation (rat, 4h): 25,300 mg/m³
Sensitization: Not expected based on available data
Mutagenicity/Carcinogenicity: Evidence of mutagenicity in vitro, animal studies suggest potential carcinogenic risk, IARC classifies 1-bromopropane as possibly carcinogenic to humans (Group 2B)
Reproductive Toxicity: Linked to decreased fertility and developmental toxicity in animal studies
Symptoms of Overexposure: Numbness, tingling, difficulty walking, memory loss, sleep disturbance
Medical Conditions Aggravated: Existing neurological, respiratory, or skin conditions

Ecological Information

Ecotoxicity: Harmful to aquatic organisms, long-term adverse effects in aquatic environment
Aquatic Toxicity Values: LC50 (fish, 96h): 67 mg/L (Pimephales promelas), EC50 (daphnia, 48h): 47 mg/L; toxicity to algae limited studies available
Persistence and Degradability: Slow degradation in water and soil, may persist in environment
Bioaccumulation Potential: Low to moderate (log Kow = 2.1), potential for accumulation in aquatic organisms
Mobility in Soil: Moderately mobile, can leach into groundwater
Other Information: Not considered to be an ozone depleter in typical use but atmospheric breakdown products include inorganic bromides

Disposal Considerations

Waste Disposal Methods: Incinerate at approved facility or dispose of as hazardous waste per local, regional, national, and international regulations
Contaminated Packaging: Rinse containers, dispose as hazardous waste, do not reuse
Precautions for Disposal: Prevent material from reaching drains, sewers, or natural waters, use properly labeled waste containers, comply with EPA, state, or site-specific regulations
Special Instructions: Consult local hazardous waste regulator for appropriate disposal methods for spent material and unused product, keep waste separate from incompatible chemicals

Transport Information

Proper Shipping Name: 1-Bromopropane
UN Number: UN2344
Class: 3 (flammable liquid)
Packing Group: II
Labels Required: Flammable Liquid
Special Precautions: Ship in accordance with DOT, IATA and IMDG regulations, avoid shipping with incompatible goods, ensure containers are securely closed and upright
Environmental Hazards: Marine pollutant status may apply, check local requirements
Transport in Bulk: Subject to MARPOL Annex II and IBC Code for ship bulk handling

Regulatory Information

US Federal Regulations: TSCA listed, SARA 313 (Section 313 toxic chemical), CERCLA reportable quantity not established, not listed as hazardous air pollutant under CAA
State Regulations: Listed under California Proposition 65 for reproductive toxicity, included in New Jersey RTK, Pennsylvania RTK
International Regulations: EINECS/ELINCS listed, subject to use or concentration restrictions in EU under REACH, regulations may differ by jurisdiction
Other Regulatory Information: Product safety guidelines regularly updated, consult latest national chemical safety codes, users responsible for compliance with all applicable laws