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Product name: 3-Bromo-1-Propene
Synonyms: Allyl bromide
Chemical formula: C3H5Br
CAS Number: 106-95-6
Recommended use: Industrial and laboratory chemical synthesis
Manufacturer details: Refer to supplier label
Emergency contact: CHEMTREC: 1-800-424-9300 (USA)
Classification: Flammable liquid (Category 2), Acute toxicity (oral, inhalation, dermal, Category 3), Skin irritation (Category 2), Eye irritation (Category 2A), Specific target organ toxicity – single exposure (Category 3)
GHS label elements: Flame, Skull & Crossbones, Exclamation Mark
Signal word: Danger
Hazard statements: Highly flammable liquid and vapor, toxic if inhaled, may cause respiratory irritation, causes skin and eye irritation
Precautionary statements: Avoid breathing vapors, wear protective gloves/protective clothing/eye protection/face protection, keep container tightly closed, use only outdoors or in a well-ventilated area
Common name: 3-Bromo-1-Propene
Chemical identity: C3H5Br
CAS Number: 106-95-6
Concentration: 99–100%
Impurities: No significant impurities contributing to hazard classification
Inhalation: Move to fresh air, keep at rest, monitor for breathing difficulties, seek medical attention promptly
Skin contact: Remove contaminated clothing, rinse skin thoroughly with soap and water for at least 15 minutes, get medical help if irritation persists
Eye contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present and easy to do, get medical attention
Ingestion: Rinse mouth with water, never give anything by mouth to an unconscious person, seek immediate medical assistance
Symptoms: Coughing, headache, dizziness, skin redness, irritation, eye pain
Suitable extinguishing agents: Carbon dioxide, dry chemical powder, alcohol-resistant foam
Unsuitable media: Water jet
Specific hazards: Vapors may form explosive mixtures with air, combustion can emit hydrogen bromide and carbon oxides
Protective equipment: Full protective suit, self-contained breathing apparatus (SCBA)
Firefighting advice: Use water spray to cool containers, keep away from ignition sources
Personal precautions: Evacuate non-essential personnel, restrict entry, eliminate ignition sources
Protective equipment: Respiratory protection, nitrile gloves, chemical goggles, impervious clothing
Environmental precautions: Prevent entry into drains, soil, or waterways
Containment methods: Ventilate area, use inert absorbent (sand, earth), scoop into closed containers for proper disposal
Safe handling: Only handle in chemical fume hood or with adequate ventilation, ground all containers, avoid breathing vapors, avoid contact with skin, eyes, and clothing
Storage conditions: Keep container tightly closed in a cool, dry, well-ventilated place away from heat, sparks, and open flame, store separately from incompatible materials such as strong oxidizers and bases
Incompatibilities: Strong bases, strong oxidizing agents, alkali metals
Occupational exposure limits: No established OSHA/ACGIH limits, handle as a hazardous chemical
Engineering controls: Use local exhaust ventilation, splash-proof eyewash stations, emergency showers nearby
Personal protection: Chemical-resistant gloves (nitrile recommended), tightly fitting safety goggles, lab coat, flame-resistant clothing, NIOSH-approved respirator for organic vapors
Hygiene measures: Wash hands after handling, remove contaminated clothing and wash before reuse, do not eat, drink, or smoke when using this chemical
Appearance: Colorless liquid
Odor: Pungent, irritating
Odor threshold: Not available
pH: Not applicable
Melting point: -111°C
Boiling point: 70–71°C
Flash point: -8°C (closed cup)
Evaporation rate: Not available
Flammability: Highly flammable
Upper/lower flammability limits: 2.4–11% (v/v, air)
Vapor pressure: 137 mmHg at 20°C
Vapor density: 3.5 (air = 1)
Relative density: 1.398 g/cm³ at 20°C
Solubility: Insoluble in water, soluble in organic solvents
Partition coefficient (log Kow): 2.04
Auto-ignition temperature: 436°C
Decomposition temperature: Not available
Viscosity: Not available
Chemical stability: Stable under recommended storage conditions
Hazardous reactions: May react violently with strong bases, oxidizing agents, and alkali metals
Polymerization: May occur in presence of strong bases, not under normal use
Conditions to avoid: Heat, sparks, open flames, electrical discharges, direct sunlight
Decomposition products: Hydrogen bromide, carbon monoxide, carbon dioxide
Acute toxicity: LD50 Oral (rat): 270 mg/kg; LD50 Dermal (rabbit): 638 mg/kg; LC50 Inhalation (rat, 4h): 101 ppm
Routes of exposure: Inhalation, skin absorption, eye contact, ingestion
Symptoms: Respiratory tract irritation, headache, vomiting, dizziness, skin redness, burns, eye irritation
Chronic effects: Repeated exposure can cause bronchitis, dermatitis
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA
Mutagenicity: Possible mutagenic potential based on animal studies
Reproductive toxicity: Not identified for this chemical
Ecotoxicity: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Persistence and degradability: Limited biodegradability, persists in environment
Bioaccumulative potential: Moderate; log Kow 2.04 suggests accumulation in aquatic organisms
Mobility in soil: Likely to volatilize, moderate mobility
Other adverse effects: Brominated organics may persist in the environment
Disposal methods: Collect liquid in approved, labeled containers, incinerate at approved waste facility with afterburner and scrubber
Container disposal: Pour residues into containers and dispose according to local, regional and national regulations, triple rinse before recycling or disposal
Precautions: Avoid release into sewers, soil, or water, contact with chemical waste professional recommended
UN number: UN 2344
UN proper shipping name: 3-Bromo-1-propene
Transport hazard class: 3 (Flammable liquid)
Packing group: II
Environmental hazards: Not a marine pollutant under IMDG
Transport labels: Flammable liquid, Toxic
Special precautions: Ensure container integrity, transport with proper ventilation, segregate from incompatible goods
OSHA: This material meets criteria for hazardous chemicals as outlined by the Hazard Communication Standard (29 CFR 1910.1200)
TSCA status: Listed
EPA SARA Title III: Subject to reporting under Section 313 (Allied bromide)
CERCLA: Reportable quantity: 100 lbs
DSL/NDSL (Canada): Listed/Compliant
REACH (Europe): Pre-registered, restrictions on handling and labeling apply
Other regulations: Subject to regional and national chemical control laws; users must comply with workplace safety, environmental protection, and proper disposal standards
