Material Safety Data Sheet: Metallocene Polypropylene

Identification

Product Name: Metallocene Polypropylene
Chemical Family: Polyolefin
Synonyms: mPP, Metallocene-Catalyzed Polypropylene
Product Use: Manufacture of various plastic goods, films, fibers, and containers
Manufacturer Information: Name, address, and contact number of producer or supplier; emergency telephone provided for immediate response
Recommended Restrictions: Not intended for consumption; use restricted to industrial and commercial manufacturing settings
CAS Number: 9003-07-0
Emergency Contact Number: Provided by supplier, accessible 24/7 for reporting incidents or seeking guidance

Hazard Identification

Physical State: Solid pellets or granules; commonly delivered as odorless, translucent beads
Main Hazards: Dust generation during processing may cause mechanical irritation to respiratory tract, eyes, or skin; molten polymer presents severe burn risk
Route of Entry: Inhalation of fumes or dust, skin contact with molten form
Health Effects: Breathing fumes generated during overheating can irritate eyes, nose, and throat; chronic exposure rarely leads to known systemic illness, but workplace controls remain essential for safety
GHS Classification: Not classified as hazardous in solid form under GHS; fumes from thermal decomposition introduce moderate, short-term risks
Label Elements: Warning symbol for burns, caution for inhalation of processing fumes or fine particulates
Precautionary Statements: Use local exhaust ventilation where dust or fumes arise; keep away from open flame or heat sources

Composition / Information on Ingredients

Chemical Identity: Polypropylene homopolymer
Metallocene Catalyst Residues: Trace levels, typically below 0.1% by weight, including zirconium or hafnium compounds stabilized within the polymer matrix
Polyproylene Content: Exceeds 99% by weight
Stabilizers and Additives: Antioxidants, acid scavengers, and antistatic chemicals may make up <1% collectively — details vary by supplier
Impurities: Negligible; heavy metal catalyst residues minimized by modern production standards

First Aid Measures

Inhalation: Move affected person to fresh air; if breathing difficulties persist after inhaling processing fumes, medical attention should be immediate
Skin Contact: Remove molten product fast and flush area with plenty of cool water; do not attempt to peel solidified polymer from skin — obtain emergency treatment for severe burns; solid form usually harmless except for mechanical abrasion
Eye Contact: Immediately flush with large quantities of water for contact with dust or airborne particulates; medical evaluation needed if irritation continues
Ingestion: Accidental swallowing unlikely in industrial settings; rinse mouth and consult physician
Advice to Doctor: Treat symptoms; burns from molten material require specialized care; inhalation injury from heated decomposition products may call for pulmonary monitoring

Fire-Fighting Measures

Flammability: Material burns readily upon ignition; flames may be difficult to extinguish without proper gear
Suitable Extinguishing Media: Water spray, dry chemical, foam, or carbon dioxide work well; water fog effective in cooling surfaces and containing dust
Firefighting Hazards: Decomposition at high temperatures gives off carbon monoxide, carbon dioxide, hydrocarbons, and trace toxic gas (acrolein possible)
Protective Equipment: Full-face self-contained breathing apparatus; chemical-resistant gear
Special Instructions: Keep containers cool with water spray to limit risk of explosion or over-pressure

Accidental Release Measures

Personal Precautions: Do not breathe fumes or dust; ensure adequate ventilation; avoid contact with molten polymer
Environmental Precautions: Prevent spill from entering drains, waterways, or open soil, as pellets and powder are persistent in the environment
Cleaning Methods: Collect solid material by mechanical means such as broom or vacuum; minimize dust formation; place swept-up waste in clearly labeled container for recycling or disposal
Secondary Risks: Fine powder increases slip or trip hazards in surrounding area; immediate cleanup helps prevent workplace accidents

Handling and Storage

Handling: Use mechanical aids to reduce dust and spills during transfer; avoid sources of static discharge or open flames; keep clear of heat above recommended processing temperatures to minimize risk of decomposition
Personal Hygiene: Wash hands thoroughly before breaks, after handling, or before eating; contaminated clothing should be laundered before reuse
Storage: Store in cool, dry, well-ventilated spaces; avoid direct sunlight and extreme temperatures; keep containers tightly sealed; stack as directed to avoid crush hazards
Incompatibility: Avoid strong oxidizers, acids, and halogens, which could destabilize material

Exposure Controls and Personal Protection

Exposure Limits: No established occupational exposure limits for solid metallocene polypropylene; locally-generated dust subject to standards for nuisance dust (e.g., OSHA PEL for particulates, 15 mg/m³ total dust)
Engineering Controls: Use local exhaust at sources of dust or vapors; process units need good general ventilation
Respiratory Protection: Dust mask or particulate respirator required where airborne particulate exceeds safe limits or in processes producing fumes
Eye Protection: Safety glasses with side shields; chemical splash goggles used when handling hot or molten polymer
Skin Protection: Gloves suitable for protection against mechanical abrasion or heat; flame-resistant clothing recommended near processing equipment operating above 170°C
Other Protection: Wash stations and emergency showers available in work area; shielded footwear for high-volume transfer work

Physical and Chemical Properties

Appearance: White or translucent solid, typically shaped as small pellets or powder
Odor: Virtually odorless; slight hydrocarbon scent possible at elevated temperatures
Molecular Weight: Broad range based on polymer grade, generally 200,000–700,000 g/mol
Melting Point: 130–170°C
Boiling Point: Decomposes before boiling
Density: 0.89–0.92 g/cm³
Solubility: Insoluble in water; soluble in hot aliphatic hydrocarbons
Vapor Pressure: Negligible at ambient temperature
Flash Point: Not applicable for solid; self-ignites around 330°C
Autoignition Temperature: 350–400°C
Decomposition Products: Carbon monoxide, carbon dioxide, and low molecular weight hydrocarbons form with significant overheating

Stability and Reactivity

Reactivity: Chemically stable under ambient conditions and proper storage
Chemical Stability: Degrades slowly in UV light and under elevated temperatures; heat speeds oxidation if antioxidant protection gets depleted
Hazardous Reactions: Reacts vigorously with strong oxidizers; avoid contact to prevent violent reaction
Thermal Decomposition: Yields toxic fumes, especially if burned without enough ventilation
Polymerization: Not expected to undergo hazardous polymerization during handling or storage
Incompatible Materials: Chlorinated solvents, halogens, concentrated acids, and strong alkalis

Toxicological Information

Acute Toxicity: Inert polymer, low likelihood of acute effects except for physical irritation from dust or burns from hot material
Chronic Toxicity: No evidence of long-term health impact from properly processed metallocene polypropylene in its solid form
Skin Corrosion/Irritation: Physical abrasion from loose pellets or powder; severe burns if handled molten
Eye Damage/Irritation: Irritation possible from direct contact with dust or fumes; safety eyewear provides necessary barrier
Sensitization: No documented skin or respiratory sensitization
Mutagenicity/Carcinogenicity: Studies show no mutagenic or carcinogenic effects in humans or animals; product not classified as a carcinogen under IARC, OSHA, or NTP
Other Effects: Decomposition products, not the polymer itself, may introduce respiratory risk—proper handling prevents exposure

Ecological Information

Environmental Fate: Persistent in nature; does not break down easily; presence in aquatic or terrestrial environments may result in accumulation
Bioaccumulation: Unlikely; chemical structure resists absorption by living organisms
Mobility in Soil: Low, as the resin is essentially insoluble in water and physically heavy compared to typical dust
Aquatic Toxicity: Low inherent toxicity, but pellets and microplastics disrupt aquatic organisms by ingestion or entanglement
Waste Impact: Waste from clean-up can infiltrate stormwater or wildlife habitats if not properly collected
Other Hazards: Fragmented pellets may be mistaken as food by animals; mechanical effects rather than chemical toxicity

Disposal Considerations

Waste Disposal Methods: Send uncontaminated scrap to plastics recycler if possible; incineration at approved facility acceptable for energy recovery; landfill as a last option if recycling or incineration infrastructure is not developed locally
Contaminated Packaging: Triple-rinse before recycling or disposing; residues handled as industrial waste
Precautions: Prevent product dust or microplastics from entering natural waterways during disposal
Regulatory Requirements: Follow local, national, or regional waste disposal regulations strictly; engage licensed waste contractors for removal when volume exceeds onsite storage capacity

Transport Information

UN Number: Not classified as hazardous for transport; not assigned
Transport Hazard Class: Not a dangerous good by DOT, ADR, IMDG, or IATA standards
Packing Group: Not regulated
Special Handling Instructions: Secure bags or bulk containers to prevent shift during transit; keep away from sources of ignition or open flame
Environmental Hazards: Possible marine pollutant by physical presence (microplastics); ensure packaging prevents escape during transit
Transport Labeling: Standard labeling with resin product name and manufacturer

Regulatory Information

OSHA: Product does not appear among known hazardous materials, but remains subject to OSHA general duty clause for safe handling
TSCA: Listed on the U.S. Toxic Substances Control Act inventory; complies with all reporting and labeling requirements
REACH: Registered or exempt under European Union Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH)
SARA Title III: Product not listed as an extremely hazardous substance; reporting thresholds not typically triggered in use
California Proposition 65: Does not contain listed carcinogens or reproductive toxins in normal composition
Other International Regulations: Product listed or notified on multiple national chemical inventories, including Canada DSL and Australia AICS; continuous compliance review remains in force to reflect new findings about workplace or environmental risk