Material Safety Data Sheet – Syndiotactic 1,2-Polybutadiene (S-1,2-PBD)

Identification

Product Name: Syndiotactic 1,2-Polybutadiene
Chemical Family: Synthetic Polymer
Synonyms: S-1,2-PBD, Poly(1,2-butadiene), Syndiotactic Polybutadiene
Recommended Use: Industrial manufacturing, elastomers, adhesives, plastic modifiers
Supplier: Polymer raw material manufacturers and chemical distributors
Emergency Contact: Local chemical safety or poison control center
CAS Number: 9003-17-2
UN Number: Not regulated for transport in most regions
Product Code: Depends on supplier labeling

Hazard Identification

Hazard Classification: Not classified as hazardous under GHS criteria
Physical Hazards: May form combustible dust concentrations if processed
Health Hazards: Dust or fumes may cause mild respiratory irritation in poorly ventilated conditions
Environmental Hazards: Stable as a solid, not considered toxic to aquatic life in bulk form, but persistence in the environment raises concerns
Signal Word: None required
Hazard Statements: Dust may irritate eyes, nose, or throat
Precautionary Statements: Avoid generating dust, use in well-ventilated spaces, wash thoroughly after handling
Pictograms: None mandated for bulk forms
Other Hazards: Static discharge risk exists with dry powder handling, avoid ignition sources

Composition / Information on Ingredients

Chemical Name: Syndiotactic 1,2-Polybutadiene
CAS Number: 9003-17-2
Typical Content: 98%-100% S-1,2-PBD polymer resin
Impurities/Stabilizers: May contain residual catalyst components, typically in trace amounts below 0.1%
Other Additives: Stabilizers or plasticizers occasionally present in low percentages for performance tailoring
Mixture Type: Homopolymer, not a mixture with hazardous impurities in normal specification

First Aid Measures

Inhalation: Move person to fresh air if dust inhaled, seek medical attention if coughing or discomfort continues
Skin Contact: Wash skin thoroughly with mild soap and water; abrasive residues may cause minor irritation
Eye Contact: Rinse eyes with plenty of clean water, continue for several minutes; medical assessment if irritation persists
Ingestion: Rinse mouth, drink water for comfort; product not expected to be toxic but a physician should be consulted if symptoms develop
Main Symptoms: Mild eye, nose, or throat irritation from dusts or particulates
Special Notes for Physicians: Treat symptomatically, no antidote required

Fire-Fighting Measures

Suitable Extinguishing Media: Universal foam, dry chemical, CO₂ or water spray for larger fires
Unsuitable Media: Direct high-pressure water streams on molten polymer may cause splattering
Specific Hazards: Burning product emits carbon monoxide, carbon dioxide, and other hydrocarbons
Protective Equipment: Full protective gear, self-contained breathing apparatus for significant fire events
Fire Behavior: Dust may form explosive mixture with air under certain processing conditions
Special Procedures: Cool fire-exposed containers, prevent runoff into waterways

Accidental Release Measures

Personal Protective Measures: Wear goggles, gloves, and dust mask if handling large quantities or fine powder
Environmental Precautions: Prevent material entering drains or natural waterways; control dust
Clean-Up Methods: Sweep or vacuum solid polymer, use non-sparking tools; place in proper disposal container
Spill Response: For airborne dust, ventilate area and suppress dust with slight water mist if safe
Reporting: Not typically required for non-hazardous polymer but local regulations may apply for large quantities

Handling and Storage

Handling Practices: Keep containers closed, ground equipment to avoid static discharge, use local exhaust ventilation
Hygiene Measures: Wash hands before breaks and at end of shift, avoid eating or drinking near processing areas
Storage Conditions: Store in cool, dry, well-ventilated area, avoid heat, direct sunlight, and open flames
Incompatible Materials: Strong oxidizers such as peroxides or chlorine compounds
Storage Life: Polymer properties best maintained under low humidity, room temperature conditions; avoid freezing or overheating
Packaging Requirements: Use lined sacks or sealed, moisture-resistant bins

Exposure Controls and Personal Protection

Exposure Limits: No occupational exposure limit for polymer; treat as nuisance dust PEL/TLV 10 mg/m³ total dust
Engineering Controls: Mechanical ventilation or local exhaust for dust-producing operations
Eye Protection: Safety goggles or face shield if dust generation possible
Skin Protection: Chemical-resistant gloves if extended or repeated contact, long sleeves
Respiratory Protection: NIOSH-approved dust mask/respirator for processing that generates fine particulates
General Safety: Emergency eye wash and shower stations in processing areas for good measure

Physical and Chemical Properties

Appearance: White to pale-yellow solid, can be in pellet, powder, or block form
Odor: Faint hydrocarbon or rubber-like
Odor Threshold: Not established
pH: Not applicable (insoluble in water)
Melting Range: 110–150°C (varies by grade)
Boiling Point: Decomposes before boiling
Flash Point: Above 300°C for solid polymer
Flammability: Burns in fire; fine powder may be flammable with air
Vapor Pressure: Not applicable
Vapor Density: Not applicable
Solubility in Water: Insoluble
Solubility in Organic Solvents: Soluble in aromatic hydrocarbons and some chlorinated solvents
Partition Coefficient (n-octanol/water): Not determined
Autoignition Temperature: >400°C
Decomposition Temperature: >300°C
Viscosity: Highly variable, not relevant for solid
Bulk Density: 0.90 – 1.00 g/cm³ (for pellets or powder)

Stability and Reactivity

Chemical Stability: Stable at normal temperatures and storage conditions
Thermal Decomposition: Heating above 300°C leads to decomposition, fume release
Reactivity: Unreactive in most environments, avoid strong acids or oxidizers
Conditions to Avoid: Excessive heat, open flame, incompatible chemicals
Hazardous Reactions: Polymer will not undergo hazardous polymerization
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, low molecular weight hydrocarbons under intense heat

Toxicological Information

Likely Exposure Routes: Inhalation of dusts or inhalable particulates, skin or eye contact
Acute Toxicity: Not acutely toxic, LD₅₀ (oral, rat) > 2000 mg/kg based on available data for similar compounds
Skin Corrosion/Irritation: No significant irritation expected, mild abrasion possible from dust
Serious Eye Damage/Irritation: Mechanical irritation from particulates possible
Respiratory Sensitization: No known risk identified
Skin Sensitization: Cases are rare, not considered sensitizing
Repeated Dose Toxicity: No observed adverse effect in animal studies of similar materials
Carcinogenicity: No component listed as a carcinogen by NTP, IARC or OSHA
Mutagenicity: Negative in available studies
Reproductive Toxicity: No evidence from animal testing on similar polymers
Other Health Effects: Not expected to cause chronic health issues under normal workplace uses

Ecological Information

Ecotoxicity: Not expected to harm aquatic or terrestrial life in solid, bulk form
Persistence and Degradability: High persistence, low natural degradation rate in the environment; slowly broken down by sunlight over years
Bioaccumulative Potential: Low expected for bulk polymer, products of breakdown remain studies of concern
Mobility in Soil: Immobile as a bulk solid; particulates may move in runoff
Other Adverse Effects: Polymer pollution concerns, microplastic formation highlights need for careful disposal

Disposal Considerations

Waste Treatment Methods: Collect for disposal in accordance with national or local regulations
Landfill or Incineration: Suitable for landfill disposal, incineration must use proper emission control
Recycling: Mechanical recycling possible in some facilities; check for compatible processing
Special Precautions: No release to surface waters or sewers
Regulatory Requirements: Check local rules regarding microplastic and synthetic polymer disposal
Waste Code: Typically non-hazardous solid waste in most jurisdictions

Transport Information

UN Number: Not regulated
UN Proper Shipping Name: Not applicable
Transport Hazard Class: Not applicable
Packing Group: Not classified
Environmental Hazards: Not listed as marine pollutant
Special Precautions for Transport: Avoid contact with strong oxidizers during transport, ensure containers are dry and undamaged
Road, Rail, Sea, Air Transport: Not subject to ADR, IMDG, IATA regulations in most regions
Bulk Transport: Safe if kept clean, dry, and secure

Regulatory Information

Classification and Labeling: Not classified as hazardous by US OSHA or EU CLP standards in standard forms
Chemical Inventory Status: Listed on TSCA, EINECS, and related national chemical inventories
SARA Title III: Not regulated under SARA 302/304/313
California Proposition 65: Not listed
REACH Status: Registered or pre-registered in the EU
RoHS/ELV Compliance: Suitable under RoHS, ELV, and similar electronic substance standards
Other Regulations: Polymer regulations may apply by country regarding environmental discharge or microplastic classification
Workplace Safety: Local dust exposure standards apply in most developed regions