Product Name: Sinopec Styrene-Butadiene Block Copolymer
Chemical Family: Thermoplastic Elastomer
Manufacturer: China Petrochemical Corporation (Sinopec Group), Beijing, China
Recommended Use: Adhesives, footwear, asphalt modification, plastics modification, sealants
Emergency Contact: Sinopec Hotline +86-10-59960000
GHS Classification: Not classified as hazardous under GHS criteria
Signal Word: None
Pictograms: None
Potential Health Effects: Dust generated during handling or processing can cause respiratory irritation; molten polymer can cause burns on contact with skin; no known chronic health effects from normal handling
Environmental Impact: Non-biodegradable, may persist in soil or water; not toxic to aquatic life in solid form
Chemical Name: Styrene-Butadiene Block Copolymer
CAS Number: 9003-55-8
Content: >99% block copolymer (styrene-butadiene)
Impurities: Trace amounts of residual monomers (styrene, butadiene), processing aids (<0.5%)
Inhalation: Move to fresh air if dust or fumes are generated; seek medical attention if symptoms develop
Skin Contact: In case of contact with molten polymer, cool immediately with plenty of water, do not remove solidified material; seek medical attention for burns
Eye Contact: Flush with water for at least 15 minutes if dust or particles contact eyes; seek medical care if irritation persists
Ingestion: Rinse mouth with water; seek medical attention if symptoms present
Notes: Product is not expected to present acute hazards in solid form
Suitable Extinguishing Media: Water spray, foam, carbon dioxide, dry powder
Unsuitable Media: High-pressure water streams can spread burning material
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, styrene, butadiene compounds, smoke
Protective Equipment for Firefighters: Full protective gear, self-contained breathing apparatus; dikes to prevent contaminated runoff
Special Procedures: Cool containers exposed to flames with water
Personal Precautions: Avoid breathing dust if present; ensure adequate ventilation; use protective gloves and goggles
Environmental Precautions: Prevent uncontrolled release into soil, drains, or waterways
Containment Methods: Collect spilled material for recycling or disposal; sweep or vacuum without generating dust
Cleanup Procedures: Use impervious container for collected product; wash spill site with water after material pick-up
Handling: Use only in well-ventilated areas; minimize dust generation; avoid sources of ignition; do not eat, drink, or smoke while handling
Storage Conditions: Store in cool, dry, well-ventilated area away from direct sunlight and incompatible materials (strong oxidizers); keep containers tightly closed
Incompatible Materials: Strong acids, strong oxidizers, halogens
Temperature Recommendations: Below 40°C for optimal shelf life; avoid freezing and overheating
Exposure Limits: No occupational exposure limits established for polymer; for nuisance dust, observe ACGIH TLV for respirable dust (3 mg/m³) and total dust (10 mg/m³)
Engineering Controls: Local exhaust ventilation for dust or fume-generating processes
Respiratory Protection: NIOSH-approved dust respirator if airborne concentrations exceed control limits
Hand Protection: Heat-resistant gloves for hot handling; impervious gloves for cold product
Eye Protection: Safety glasses with side shields; face shield for handling molten product
Other Protective Equipment: Work apron, safety shoes, emergency eyewash station recommended in processing areas
Physical State: Solid, typically as pellets or powder
Color: White or pale yellow
Odor: Faint, characteristic hydrocarbon
pH: Not applicable
Melting Point: Softening range 80–120°C
Boiling Point: Not applicable (decomposes before boiling)
Flash Point: >350°C
Auto-ignition Temperature: >400°C
Solubility in Water: Insoluble
Vapor Pressure: Not applicable
Relative Density: 0.92–0.96 g/cm³
Partition Coefficient: Not applicable
Viscosity: Not applicable in solid form
Chemical Stability: Stable under recommended storage and handling practices
Hazardous Reactions: None expected in normal use
Conditions to Avoid: Prolonged heat exposure, direct flames, contact with strong oxidizers
Decomposition Products: CO, CO₂, hydrocarbons, acrid smoke under fire conditions
Polymerization: Not expected to occur
Acute Toxicity: Product considered non-toxic in solid state; dust may irritate respiratory system
Skin Corrosion/Irritation: Non-irritant in solid state; molten product causes thermal burns
Eye Damage/Irritation: Dust or particles can cause mechanical irritation
Respiratory Sensitization: Not classified as a respiratory sensitizer
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, OSHA
Chronic Effects: No evidence of adverse effects from normal handling based on available data
Mutagenicity: No known mutagenic effects
Reproductive Toxicity: No evidence of reproductive toxicity from available studies
Ecotoxicity: Not toxic to fish or aquatic organisms in solid form
Mobility: Product floats on water, sinks in soil; likely to persist in environment
Persistence and Degradability: Not biologically degradable; photodegradation occurs over extended periods
Bioaccumulation: Not expected to bioaccumulate
Other Adverse Effects: Large quantities in water bodies can pose mechanical hazards to aquatic life
Waste Treatment Methods: Recycle or reprocess wherever possible; incinerate in approved facilities if recycling not feasible
Disposal of Packaging: Clean containers can be recycled or disposed with solid waste after consultation with local regulations
Special Precautions: Must not be disposed of by dumping into streams or unapproved landfills; comply with local, regional, national laws
RCRA Status: Not a hazardous waste under US RCRA regulations
UN Number: Not regulated as hazardous for transport
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Shipping Name: Styrene-Butadiene Block Copolymer
Transport Labels: None required
Special Precautions: Protect from sunlight and water during transport; avoid contact with strong oxidizers
TSCA Status: Listed
REACH Status: Exempt as polymer, monomers registered
SARA Title III: Not a hazardous chemical
California Proposition 65: No listed substances
RoHS/WEEE: Product complies with EU RoHS and WEEE directives
Other National Regulations: Compliant with existing chemical safety regulations in principal manufacturing and importing countries
Other Labeling Requirements: No special hazard labeling required under GHS; observe national workplace labeling as needed
