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Product Name: Isobutylene-Isoprene Copolymer
Chemical Family: Synthetic Rubber
Synonyms: Butyl Rubber, IIR
CAS Number: 9010-85-9
Recommended Use: Seals, tires, adhesives, protective clothing, electrical insulation
Manufacturer: Contact information for supplier or manufacturer, including emergency telephone number and address
GHS Classification: Not classified as hazardous according to GHS criteria
Physical State: Solid, rubber-like
Main Hazards: Dust generation from processing, inhalation hazards from fumes when heated, irritation from physical handling
Hazard Symbols: None required for polymer in solid form
Signal Word: None
Precautionary Statements: Avoid breathing fumes or dust, use protective gloves and eyewear, keep away from heat and open flames
Routes of Exposure: Eyes, skin, inhalation of processing fumes, ingestion unlikely under normal use
Chemical Name: Isobutylene-Isoprene Copolymer
CAS Number: 9010-85-9
Concentration: 100% (may contain trace amounts of manufacturing stabilizers or antioxidants)
Impurities: Negligible under usual conditions, details available on request for specific grades
Additives: Depending on supplier, stabilizers or antioxidants such as zinc oxide or stearic acid may be present in minimal quantities
Eye Contact: Rinse immediately with plenty of water, lift eyelids occasionally, seek medical attention if irritation persists
Skin Contact: Wash with soap and water, remove contaminated clothing, obtain medical attention if rashes or irritation develop
Inhalation: Remove to fresh air, seek medical attention if symptoms such as dizziness or respiratory discomfort occur due to heated fumes
Ingestion: Unlikely route of exposure, rinse mouth, drink water if large amounts swallowed, seek medical attention
Note to Physician: Treat symptomatically based on clinical judgment
Suitable Extinguishing Media: Water spray, foam, dry powder, carbon dioxide
Unsuitable Extinguishing Media: High-pressure water jets may scatter molten residues
Specific Hazards: Combustion produces carbon monoxide, carbon dioxide, trace hydrocarbons, smoke, and other irritating gases
Protective Equipment: Firefighters require self-contained breathing apparatus and complete personal protective equipment
Special Procedures: Cool exposed containers with water spray, avoid inhalation of combustion products
Personal Precautions: Wear protective gloves, eyewear, and dust mask if dust forms
Environmental Precautions: Prevent entry into drains, water bodies, or soil, sweep up spills for recovery or disposal
Methods for Cleaning Up: Collect solid material manually, use industrial vacuum for smaller particles, place material in clearly labeled containers
Reference to Other Sections: Consult sections on personal protection and disposal for further handling guidance
Handling: Use in well-ventilated areas, avoid contact with sharp edges, surfaces, and excessive heat, keep away from incompatible materials such as oxidizers
Storage Conditions: Store in cool, dry place, keep away from direct sunlight, heat sources, and ignition points
Packing Materials: Use original or suitable containers made from compatible materials
Safe Loading/Unloading Procedures: Employ proper mechanical means to lift or move large quantities, ensure storage area is clearly labeled and equipped with spill containment measures
Occupational Exposure Limits: Not established for the polymer itself; monitor potential dust generated during processing
Engineering Controls: Local exhaust during heating, adequate general ventilation
Personal Protective Equipment: Protective gloves (nitrile, neoprene), safety goggles, dust mask if material is ground, hearing protection in noisy environments
Hygiene Measures: Wash hands after handling, remove contaminated clothing, avoid eating or drinking while handling the product
Appearance: Solid sheets, blocks, or bales, black or off-white
Odor: Mild to no odor
pH: Not applicable
Melting Point: Decomposes before melting, softening point around 70–90°C
Boiling Point: Not applicable
Flash Point: Over 300°C (estimated for decomposition)
Auto-ignition Temperature: Above 350°C
Vapor Pressure: Not applicable
Solubility: Insoluble in water, swells in hydrocarbons
Specific Gravity: 0.9 – 0.92
Viscosity: Not applicable
Partition Coefficient (n-octanol/water): Not available
Chemical Stability: Stable under normal use and storage
Possibility of Hazardous Reactions: None under normal processing
Conditions to Avoid: Avoid excessive heat, open flame, strong oxidizing agents
Incompatible Materials: Strong acids, oxidizers, chlorine, halogenated hydrocarbons
Hazardous Decomposition Products: Thermal decomposition can yield irritating smoke, carbon monoxide, carbon dioxide, low levels of aldehydes and hydrocarbons
Acute Toxicity: Not expected to be toxic by oral, dermal, or inhalation exposure based on polymer structure
Chronic Toxicity: No known health effects expected from handling solid polymer
Skin Corrosion/Irritation: Not classified as an irritant; minor irritation may occur with repeated or prolonged contact
Eye Damage/Irritation: Minor mechanical irritation possible from dust or particles
Respiratory Sensitization: Heated fumes may cause mild respiratory irritation, rare reports of allergenic potential
Germ Cell Mutagenicity: No data to suggest genetic toxicity
Carcinogenicity: Not listed by NTP, IARC, OSHA
Reproductive Toxicity: No evidence from manufacturing or animal studies
STOT – Single or Repeated Exposure: Not anticipated
Ecotoxicity: Not classified as hazardous to the environment, polymer is not soluble and considered inert
Persistence and Degradability: Degrades slowly in the environment, limited biodegradability in natural settings
Bioaccumulative Potential: Low, not expected to accumulate in aquatic organisms
Mobility in Soil: Low, given the polymeric nature and solid state
Other Adverse Effects: No significant environmental hazards anticipated when managed responsibly
Waste Disposal Methods: Recycle or reuse whenever possible, otherwise dispose as non-hazardous solid waste in accordance with local, state and federal regulations
Product Disposal: Incinerate at approved facilities if recycling is not feasible, avoid uncontrolled dumping or burning
Container Disposal: Clean before reuse or recycling, dispose of per community waste guidelines
Special Precautions: Avoid releasing product to the environment, do not incinerate closed containers due to risk of pressure build-up
UN Number: Not regulated as a hazardous material for transport
Proper Shipping Name: Isobutylene-Isoprene Copolymer or Butyl Rubber
Transport Hazard Class: Non-hazardous
Packing Group: Not assigned
Environmental Hazards: None
Transport Labels: Not required
Special Precautions for User: Secure loads during transit, keep away from heat and incompatible cargo
TSCA Status: Listed on US Toxic Substances Control Act Inventory
REACH Registration: Compliant with European Union REACH Regulation
OSHA Hazard Communication: Not a hazardous chemical as defined under OSHA Hazard Communication Standard
SARA Title III: Not classified as a hazardous substance under Sections 302, 311/312, or 313
Canadian WHMIS Classification: Not controlled
Other National Regulations: Meets applicable chemical control laws in most major industrial regions, consult local environmental and workplace safety authorities for additional guidance
