Material Safety Data Sheet: Hydrogenated Polydicyclopentadiene

Identification

Product Name: Hydrogenated Polydicyclopentadiene
Chemical Family: Polyolefin, Hydrocarbon Resin
CAS Number: 41668-87-5
Synonyms: HPDCPD, Hydrogenated DCPD Polymer
Manufacturer: [Manufacturer Name]
Recommended Use: Structural composites, automotive parts, industrial molding
Emergency Telephone Number: [24-hour Emergency Number]
Address: [Manufacturer Address]

Hazard Identification

GHS Classification: Non-hazardous under GHS criteria
Signal Word: Not applicable
Hazard Statements: None known at standard conditions
Precautionary Statements: Avoid contact with eyes and prolonged skin contact; handle with proper ventilation; possible release of hydrocarbon vapors at elevated processing temperatures
Physical Hazards: May emit combustible vapors if overheated
Chronic Hazards: Data insufficient for chronic effects; suspected inert substance
Environmental Hazards: Low potential for acute aquatic toxicity, but long-term persistence

Composition / Information on Ingredients

Chemical Name: Hydrogenated Polydicyclopentadiene
CAS Number: 41668-87-5
Purity: > 98%
Impurities: Residual monomers (dicyclopentadiene < 1%), trace hydrogenation catalysts (metal residues < 0.1%)
Formulation: Solid polymer, typically colorless to pale yellow
Additives: None required for base grade; pigment or stabilizer presence noted on label

First Aid Measures

Eye Contact: Rinse thoroughly with water, seek medical attention if irritation persists
Skin Contact: Remove contaminated clothing, wash skin with soap and water; chronic exposure rare, but seek attention for persistent rash
Inhalation: Move to fresh air; heated polymer may cause throat irritation, see doctor for respiratory discomfort
Ingestion: Unlikely exposure path; rinse mouth, seek medical advice for discomfort
Most Important Symptoms: Redness, irritation, discomfort from high dust or fume levels
Notes for Physician: Treat symptomatically, no specific antidote

Fire-Fighting Measures

Suitable Extinguishing Media: Foam, dry chemical, carbon dioxide; water spray for larger fires
Unsuitable Media: Direct water jet may scatter molten resin
Specific Hazards: Combustion generates carbon monoxide, carbon dioxide, hydrocarbons; hot polymer burns vigorously
Firefighting Instructions: Wear self-contained breathing apparatus, protective clothing; cool containers with water spray to prevent rupture
Explosion Hazard: Dust clouds possible during fine processing
Hazardous Combustion Products: Irritating fumes, soot, volatile hydrocarbons

Accidental Release Measures

Personal Precautions: Use gloves, goggles, mask when cleaning up powder or granules
Environmental Precautions: Prevent entry into drains and waterways; sweep up solid product to minimize slip risk
Spill Cleanup Methods: Scoop or sweep up for disposal or recovery; ventilate area for molten spills
Containment: Use barriers to prevent spreading, for heated spills allow cooling before removal
Decontamination: Wash surfaces with soap and water after dry clean-up

Handling and Storage

Handling: Avoid inhaling dust or fumes from heated resin; use with local exhaust ventilation during processing; minimize skin contact
Storage Conditions: Store in cool, dry, well-ventilated area; keep away from open flames, oxidizers, extreme heat
Incompatible Materials: Strong acids, oxidizing agents; do not store near food or feed materials
Packaging: Use original sealed containers, avoid prolonged exposure to direct sunlight
Special Precautions: Prevent build-up of dust; ground equipment to avoid static discharge

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established threshold limit value for base polymer
Engineering Controls: Local exhaust ventilation for melt processing; minimize airborne particulates
Respiratory Protection: Approved mask for dusty environments or when heating above standard conditions
Hand Protection: Chemical-resistant gloves (nitrile, PVC); wash hands after handling
Eye Protection: Safety glasses with side shields or goggles
Skin Protection: Long sleeves, work clothing; launder soiled items
Hygiene Measures: Wash thoroughly before eating or drinking

Physical and Chemical Properties

Appearance: White to light yellow solid, granules or molded form
Odor: Faint hydrocarbon-like smell, stronger if heated
Melting/Softening Point: 140–180°C (typical processing range)
Boiling Point: Not applicable (polymeric solid)
Flash Point: > 250°C (estimated, closed cup)
Vapor Pressure: Negligible at ambient temperature
Solubility: Insoluble in water, soluble in some organic solvents
Density: 0.95–1.10 g/cm³
pH: Neutral
Viscosity: Not applicable to solid
Partition Coefficient (n-octanol/water): Not determined, expected high logP
Autoignition Temperature: > 400°C
Explosive Properties: Not explosive as solid; fine powder may present dust hazard
Oxidizing Properties: Not oxidizing

Stability and Reactivity

Chemical Stability: Stable under recommended storage and use conditions
Thermal Decomposition: Decomposes above 300°C, releasing hydrocarbons and irritant vapors
Conditions to Avoid: Prolonged heat above processing temperature, direct UV exposure, strong oxidizers
Incompatible Materials: Chlorinated solvents, strong acids, oxidizers
Polymerization: Not known to undergo hazardous polymerization
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, olefin fragments, soot

Toxicological Information

Acute Toxicity (oral, dermal, inhalation): Low; data demonstrate no acute toxicity at typical exposure levels
Skin Corrosion/Irritation: Mild to none under ambient conditions; heating may cause irritation
Eye Damage/Irritation: Slight possible irritation with dust or heated fumes
Respiratory Sensitization: No data supporting sensitization; dust or fumes may produce discomfort
Skin Sensitization: Not a known skin sensitizer
Carcinogenicity: No known risk from polymer; supporting data on related polyolefins show no carcinogenicity
Reproductive Toxicity: Data insufficient, no evidence of effects at standard exposures
Mutagenicity: Not mutagenic in tested polymer products
Other Information: Handling with heat may present inhalation hazard; recommend minimizing exposure to thermal decomposition products

Ecological Information

Environmental Fate: Persistent synthetic polymer, does not readily degrade in natural environments
Mobility in Soil: Immobile as bulk solid; may accumulate if released
Aquatic Toxicity: Low acute toxicity to fish and aquatic life; physical hazard through entrapment or ingestion
Bioaccumulation: Potential for accumulation in sediment, unlikely in food chain due to large molecular structure
Degradability: Slow, resistant to biological breakdown
Additional Information: Prevent runoff to waterways and drains; massive release poses physical hazard

Disposal Considerations

Waste Treatment Methods: Prefer controlled incineration with energy recovery; landfill permitted where local regulations allow
Disposal of Packaging: Clean packaging should be recycled or landfilled according to local, state, or national regulations
Special Precautions: Do not discharge into water bodies; avoid uncontrolled burning to reduce fume generation
Regulatory Requirements: Follow relevant local, national environmental regulations for chemical wastes

Transport Information

UN Number: Not classified as hazardous for transport
UN Proper Shipping Name: Not regulated
Transport Hazard Class: None assigned
Packing Group: Not applicable
Environmental Hazards: None for bulk solid
Special Precautions for User: Avoid generating dust during transfer, contain securely during transit
Additional Transport Info: Not subject to ADR, IMDG, or IATA regulations

Regulatory Information

Global Inventories: Listed or exempt in TSCA (USA), REACH (EU), DSL (Canada), AICS (Australia)
OSHA Classification: Not considered hazardous under OSHA Hazard Communication Standard
WHMIS (Canada): Not controlled
EU REACH Status: Polymer, exempt from registration but may contain monomers subject to REACH
Labeling Requirements: None required for unmodified polymer; use standard safety labeling for packed goods
SARA/Title III: Not subject to reporting
Proposition 65 (California): No listed ingredients present
Other Information: Use according to good industrial hygiene and safety practice; monitor emerging regulatory developments