Material Safety Data Sheet for Dicyclopentadiene Resin

Identification

Product Name: Dicyclopentadiene Resin
Synonyms: DCPD Resin, Cyclopentadiene Polymer
CAS Number: 77-73-6 (main constituent)
Usage: Used in paints, adhesives, rubbers, and certain specialty plastics
Manufacturer Details: Contact address and emergency phone number shown on accompanying product documentation
Recommended Use: Intermediate for chemical synthesis, resin component in adhesives and coatings
Restrictions: Not recommended for consumer or food-related applications

Hazard Identification

GHS Classification: Flammable solid, Skin irritant, Eye irritant, Environmentally hazardous substance, Specific target organ toxicity — single exposure
Pictograms: Flame, Exclamation mark, Environment
Signal Word: Warning
Hazard Statements: May form flammable vapor-air mixture, causes skin and eye irritation, suspected of causing respiratory irritation, acutely toxic to aquatic organisms
Precautionary Statements: Keep away from heat, sparks, open flames, avoid breathing dust, fume or vapor, use only outdoors or in well-ventilated area, avoid release to the environment, wear protective gloves and eye protection

Composition / Information on Ingredients

Main Component: Dicyclopentadiene, concentration often greater than 90%
Impurities: Trace amounts of cyclopentadiene oligomers (<2%), stabilizers if present (<1%)
Other Information: Mixture may include proprietary resins; exact composition may vary by manufacturer; does not include intentionally added hazardous heavy metals

First Aid Measures

Inhalation: Remove person to fresh air; seek medical attention if breathing difficulty or symptoms persist
Skin Contact: Remove contaminated clothing immediately, rinse skin with water for at least 15 minutes, call a doctor if symptoms such as redness or blistering develop
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if possible, continue rinsing and see a physician if irritation persists
Ingestion: Rinse mouth, do not induce vomiting, call a poison center or physician at once if swallowed
Symptoms: Irritation of skin, eye redness, headache, dizziness, nausea with overexposure to vapor

Fire-Fighting Measures

Suitable Extinguishing Media: Foam, dry chemical, carbon dioxide, do not use water jet for fire extinction
Specific Hazards: May emit toxic fumes of carbon monoxide, carbon dioxide, and hydrocarbons on combustion; vapor may travel to distant ignition source and flash back
Protective Equipment: Firefighters use self-contained breathing apparatus and full protective gear
Advice for Firefighters: Approach fire from upwind to avoid hazardous vapors, dike fire control water for later disposal, cool closed containers exposed to fire with water spray

Accidental Release Measures

Personal Precautions: Use appropriate personal protection to prevent contact with skin or eyes or inhalation of fumes, ventilate area, remove all sources of ignition
Environmental Precautions: Prevent entry into sewers, watercourses, or soil, inform local authorities if significant release occurs
Spill Response: Absorb with inert material such as vermiculite or sand, collect in suitable containers for proper disposal, clean area thoroughly after spill removal to avoid slip hazard

Handling and Storage

Handling: Maintain adequate ventilation, avoid generating dust, prevent any buildup of static electricity, keep away from heat, sparks, or open flames, avoid contact with incompatible materials such as acids and strong oxidizers
Storage Conditions: Store in a cool, dry, well-ventilated space away from direct sunlight and sources of ignition, keep container tightly closed, separation from food and beverages
Requirements for Containers: Use only containers specifically approved and labeled for dicyclopentadiene resin, inspect regularly for integrity and leaks, label all containers with content and hazard information

Exposure Controls and Personal Protection

Occupational Exposure Limits: Recommended exposure limit (8 hour TWA): 5 ppm (manufacturer guideline; check national standards)
Engineering Controls: Use local exhaust ventilation to reduce airborne concentrations, provide eyewash stations and emergency showers in areas with risk of exposure
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), safety goggles, splash-proof face shield for bulk handling, long-sleeved protective clothing, approved respirator where vapors are present or in poorly ventilated spaces

Physical and Chemical Properties

Form: Solid or semi-solid resin at room temperature; becomes liquid above 35°C
Color: Yellow to light amber
Odor: Slight terpene, hydrocarbon-like scent
Melting Point: 33°C – 35°C
Boiling Point: >170°C (decomposes on boiling)
Flash Point: 43°C (closed cup)
Vapor Pressure: Less than 1 mm Hg at 20°C
Solubility: Insoluble in water; soluble in many organic solvents
Density: 1.1 – 1.2 g/cm³ at 25°C
Viscosity: Varies by formulation, typically moderate

Stability and Reactivity

Chemical Stability: Chemically stable under recommended storage and handling conditions
Reactivity: Not highly reactive but may undergo exothermic polymerization or decomposition if exposed to elevated temperatures, acids, or strong oxidizers
Conditions to Avoid: Heat, flame, ignition sources, moisture, prolonged exposure to light
Incompatible Materials: Strong acids, strong oxidizing agents, peroxides
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, various hydrocarbons
Hazardous Polymerization: Polymerization can occur uncontrolled at elevated temperatures, producing heat and potentially hazardous fumes

Toxicological Information

Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Effects: Skin and eye irritant, respiratory tract irritation, central nervous system depression with high vapor concentrations
Chronic Effects: Prolonged or repeated contact may cause dermatitis; repeated inhalation linked to liver and kidney effects in animal studies
LD50 (oral, rat): > 2000 mg/kg
Mutagenicity/Carcinogenicity: No strong evidence for mutagenic or carcinogenic potential based on current animal studies
Sensitization: Unlikely to cause allergic skin reaction

Ecological Information

Aquatic Toxicity: May be toxic to aquatic life with long-lasting effects; LC50 (fish, 96h): 1 – 10 mg/L
Persistence and Degradability: Not readily biodegradable; potentially persistent in natural environments
Bioaccumulation Potential: Moderate potential for bioaccumulation though data is limited
Mobility in Soil: Not very mobile; tends to adhere to soils and sediments
Additional Information: Prevent release to waters, sewers, soil; significant spills require notification to environmental authorities

Disposal Considerations

Waste Treatment Methods: Dispose of in accordance with local, regional, and national regulations at licensed hazardous waste facility
Packaging Disposal: Empty containers retain residue and should be handled with care; do not reuse container unless properly decontaminated
Precautions: Avoid disposal in landfill or incineration without proper flue gas treatment to prevent environmental contamination

Transport Information

UN Number: UN 1993
Proper Shipping Name: Flammable liquid, n.o.s. (contains Dicyclopentadiene)
Transport Hazard Class: 3 (Flammable Liquid)
Packing Group: III
Labels Required: Flammable Liquid symbol
Special Precautions: Secure containers, ensure lids are tightly closed, segregate from food and incompatible substances, transport only by approved carriers and handlers trained in hazardous materials

Regulatory Information

Occupational Safety: Covered under OSHA Hazard Communication Standard in the US; labeling and safety training required for all workers
Environmental Release: Listed as hazardous under many local environmental protection laws for water and soil contamination
Chemical Inventory Status: Listed on TSCA, EINECS, DSL, AICS, and other international chemical inventories
Restrictions: May be subject to SARA Title III reporting in the US; disposal and transportation regulated by DOT, IATA, IMDG
Label Elements: Complies with GHS global labeling system; hazard pictograms, signal word, hazard and precautionary statements displayed on original packaging