Material Safety Data Sheet – 1,5-Dibromopentane
Identification
Product Name: 1,5-Dibromopentane
Synonyms: Pentamethylene dibromide; Pentane, 1,5-dibromo-
Chemical Formula: C5H10Br2
Molecular Weight: 229.94 g/mol
CAS Number: 111-24-0
Manufacturer/Supplier: Contact details required from specific supplier
Recommended Use: Laboratory reagent, intermediate in organic synthesis
Restrictions: Not for drug, food, or household use
Hazard Identification
Classification: Eye Irritation (Category 2A), Skin Irritation (Category 2), Acute Toxicity (Oral & Dermal, Category 4)
Label Elements: Warning, exclamation mark pictogram
Signal Word: Warning
Hazard Statements: Harmful if swallowed, harmful in contact with skin, causes skin irritation, causes serious eye irritation
Precautionary Statements: Wash hands thoroughly after handling, avoid breathing dust, fume, gas, mist, vapors, sprays, wear protective gloves/protective clothing/eye protection/face protection
Potential Health Effects: Eye and skin contact can cause irritation and redness, inhalation leads to breathing difficulty and coughing, swallowing can trigger nausea and abdominal pain, pre-existing skin disorders may worsen
Environmental Hazards: Harmful to aquatic life, possible long-term risks to water environments
Composition / Information on Ingredients
Chemical Name: 1,5-Dibromopentane
Concentration: >99%
Chemical Formula: C5H10Br2
CAS Number: 111-24-0
Impurities/Additives: None expected when sourced from reputable supplier
First Aid Measures
Eye Contact: Flush immediately with copious amounts of water for at least 15 minutes, keep eyelids apart, seek medical attention without delay
Skin Contact: Remove contaminated clothing, wash affected skin with soap and plenty of water for several minutes, seek medical advice if irritation persists
Inhalation: Move exposed person to fresh air, keep comfortable and warm, medical attention required for any adverse symptoms
Ingestion: Rinse mouth, do not induce vomiting, never give anything by mouth to an unconscious person, seek prompt medical attention
Note for Physicians: Treatment should target symptoms and support vital functions, monitor for respiratory difficulties
Fire-Fighting Measures
Suitable Extinguishing Media: Use alcohol-resistant foam, dry chemical powder, carbon dioxide, or water spray to suppress fire
Hazards from Combustion: Hydrogen bromide and carbon oxides form upon decomposition, inhalation of fumes is highly hazardous
Protective Equipment for Firefighters: Use full-face self-contained breathing apparatus, chemical resistant clothing
Special Firefighting Procedures: Avoid breathing gas, vapors, or dust, do not allow water to run off contaminated site, stay upwind, cool containers with water spray if exposed to fire
Accidental Release Measures
Personal Precautions: Evacuate non-essential personnel from area, ventilate space, wear protective gloves, goggles, and respirator
Environmental Precautions: Prevent spillage from entering waterways, drains, or soil, inform relevant authorities in the event of large releases
Clean-Up Methods: Absorb spills with inert materials like sand or vermiculite, collect and seal in appropriate containers, clean affected area thoroughly with water and detergent, dispose of according to regulations
Handling and Storage
Handling: Handle only with proper protection, avoid direct skin and eye contact, use in well-ventilated environments or fume hoods, wash hands and face before eating or smoking, keep containers tightly closed
Storage: Store in a cool, dry, well-ventilated place, keep away from heat, sparks, open flames, oxidizers, acids, store in original or compatible containers clearly labeled for chemical identity, check containers regularly for leaks
Exposure Controls and Personal Protection
Occupational Exposure Limits: No established exposure limits for 1,5-dibromopentane; minimize exposure by engineering controls
Engineering Controls: Use chemical fume hood, ensure eyewash stations and emergency showers are accessible
Personal Protective Equipment: Wear chemical resistant gloves (nitrile or neoprene), impervious clothing, chemical splash goggles, face shield and respiratory protection like NIOSH-approved respirator for vapor, mist, or dust formation
Hygiene Measures: Remove contaminated clothing and wash exposed skin, do not eat, drink, or smoke during handling, wash hands thoroughly after use
Physical and Chemical Properties
Physical State: Liquid
Color: Colorless to pale yellow
Odor: Characteristic, sweetish
Odor Threshold: Not determined
pH: Not applicable
Melting Point: -3°C
Boiling Point: 227°C
Flash Point: >110°C
Evaporation Rate: Not available
Flammability: Not classified as flammable
Vapor Pressure: <0.1 mm Hg at 25°C
Vapor Density: 7.97 (air = 1)
Density: 1.74 g/cm³ at 25°C
Solubility: Insoluble in water, soluble in ethanol, ether
Partition Coefficient (log Kow): Estimated 2.53
Auto-Ignition Temperature: Not determined
Decomposition Temperature: Not determined
Viscosity: Not determined
Stability and Reactivity
Chemical Stability: Stable under recommended conditions
Conditions to Avoid: Prolonged exposure to heat, strong light, moisture, sources of ignition
Materials to Avoid: Strong oxidizing agents, strong bases, acids
Hazardous Decomposition Products: Hydrogen bromide, carbon oxides, toxic smoke
Polymerization: Not likely to occur under normal handling
Toxicological Information
Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Acute Toxicity: Estimated LD50 (oral, rat) 2200 mg/kg, LD50 (dermal, rabbit) >2000 mg/kg
Skin Corrosion/Irritation: Causes skin irritation, repeated contact aggravates symptoms
Serious Eye Damage/Eye Irritation: Causes significant eye irritation, redness, tearing
Respiratory Sensitization: Not expected to cause respiratory sensitization, though vapors may cause mild respiratory distress
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Mutagenicity: Not classified, lack of sufficient data
Reproductive Toxicity: No indication from available data, but limited studies reported
Other Effects: Repeated/prolonged exposure may generate dermatitis
Ecological Information
Ecotoxicity: Moderately toxic to aquatic organisms, risk of long-term adverse effects in aquatic environment
Mobility in Soil: Low mobility due to low water solubility
Persistence and Degradability: Not rapidly biodegradable, persistent under natural conditions
Bioaccumulative Potential: Moderate potential for accumulation in organisms due to log Kow
Other Adverse Effects: Not expected to cause significant ozone depletion or atmospheric reactions, but should avoid uncontrolled release to environment
Disposal Considerations
Waste Handling: Dispose as hazardous chemical waste, comply with local, regional, and national regulations
Contaminated Packaging: Triple rinse containers, puncture before recycling where allowed, incinerate if required
Recommended Disposal Methods: Incineration or high-temperature thermal destruction in licensed facility, do not pour into drains or watercourses
Precautions for Disposal: Wear protective gear, avoid inhaling fumes during handling, secure packaging to prevent leaks during transport
Transport Information
UN Number: 2810
UN Proper Shipping Name: Toxic Liquid, Organic, N.O.S. (contains 1,5-Dibromopentane)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Marine Pollutant: Yes
Special Precautions: Avoid contact with incompatible materials during transportation, mark clearly as hazardous, transport in accordance with local, state, and federal requirements
Regulatory Information
TSCA (Toxic Substances Control Act): Listed
EU REACH Registration: Subject to substance registration, check registration status with supplier
OSHA Hazards: Harmful by ingestion and skin contact, irritant
WHMIS Classification (Canada): D2B (Toxic materials causing other toxic effects)
SARA Title III: Not specifically listed under Sections 302, 313
State Regulations: Check California Proposition 65 and other state lists for current information
Other International Regulations: Check applicable regulations in buyer’s country, local chemical safety rules may apply
