Material Safety Data Sheet: Chlorinated Polyolefin (CPO)

Identification

Product Name: Chlorinated Polyolefin (CPO)
Chemical Formula: Varies (C_nH_mCl_p)
Recommended Use: Adhesion promoter, coatings, plastics modifier
Manufacturer: Contact details available on official supplier documentation
Emergency Contact: 24-hour CHEMTREC line, local emergency services
Synonyms: Chlorinated Polyethylene, Chlorinated Polypropylene

Hazard Identification

GHS Classification: Not classified as hazardous according to GHS recommendations
Potential Health Effects: May cause mild skin irritation, eye discomfort, respiratory tract irritation from dust. Long-term exposure to vapors during heating or processing could aggravate pre-existing respiratory conditions.
Environmental Hazards: Aquatic toxicity low, but long-term accumulation in waterways can harm microfauna. Product does not break down readily in the environment.
Label Elements: No pictogram required. Precautionary wording: Avoid dust inhalation. Use gloves and safety glasses.
Signal Word: None
Precautionary Statements: Avoid skin and eye contact, prevent formation of dust, keep away from open flame during thermal processing.

Composition / Information on Ingredients

Component: Chlorinated Polyolefin
CAS Number: 68442-33-1 (example for Chlorinated Polyolefin)
Concentration: 100% (product is not a blend but may contain negligible impurities)
Impurities: Trace levels of residual solvent (such as methyl ethyl ketone) possible, but do not significantly affect safety profile
Additives: None unless specified by supplier

First Aid Measures

Inhalation: Move affected person to fresh air. Support breathing as required. Seek medical attention if discomfort persists.
Skin Contact: Wash skin thoroughly with soap and water. Remove contaminated clothing and wash before reuse. If irritation or rash develops, consult a physician.
Eye Contact: Flood eyes with lukewarm water for several minutes, lifting eyelids. If irritation continues, seek medical care.
Ingestion: Rinse mouth, do not induce vomiting. Get medical help if a large amount is swallowed.
Main Symptoms: Irritation of nose, throat, skin or eyes. Coughing or sneezing possible after inhaling dust.

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical, foam, or carbon dioxide.
Unsuitable Extinguishing Media: None known for this material, but avoid high-pressure water jets.
Special Hazards: Thermal decomposition can release hydrogen chloride, carbon monoxide, and small amounts of corrosive chlorine compounds.
Protective Equipment: Full protective gear, self-contained breathing apparatus for large fires or in poorly ventilated spaces.
Firefighting Instructions: Move containers away from fire area if safe. Use water spray to cool fire-exposed surfaces. Prevent runoff from entering drains.

Accidental Release Measures

Personal Precautions: Wear dust mask, protective gloves, safety eyewear. Ventilate area. Remove ignition sources if spilled during thermal processing.
Environmental Precautions: Prevent product from entering waterways. Contain spill with inert material (sand, earth).
Cleanup Methods: Sweep or vacuum dry CPO into containers for disposal or recycling. Place in properly labeled containers. Avoid generating dust.
Disposal of Spills: Dispose in accordance with local, state, or federal regulations. Wash spill site with water after material pickup is complete.

Handling and Storage

Safe Handling Practices: Use with adequate ventilation to minimize dust and vapors during heat processing. Use personal protective equipment. Avoid contact with skin, eyes, and clothing.
Storage Conditions: Store in dry, cool, well-ventilated place away from open flame, sources of ignition, and incompatible substances like strong oxidizers.
Container Requirements: Keep containers tightly closed and labelled. Use only containers designed for CPO storage.
Incompatibilities: Strong oxidizing agents, strong acids, and excessive heat.
Special Precautions: Segregate from food and animal feed. Ensure area is free from static discharge sources.

Exposure Controls and Personal Protection

Exposure Limits: No specific OSHA or ACGIH limits for CPO. Use workplace exposure limits for nuisance dust (e.g., OSHA PEL 15 mg/m³ for total dust).
Engineering Controls: Local exhaust ventilation in places where dust or fumes may form, especially during heating.
Personal Protective Equipment: Safety glasses or face shield, chemical-resistant gloves, dust mask or approved respirator if dust exceeds limits.
Hygiene Measures: Wash hands after handling. Do not eat or drink in areas where CPO is used or stored.

Physical and Chemical Properties

Appearance: White to pale yellow powder or granular solid
Odor: Mild, faintly chlorine-like
pH: Not applicable (insoluble in water)
Melting Point: Ranges from 90°C to 130°C depending on grade and chlorination level
Boiling Point: Not applicable
Flash Point: Above 200°C
Density: About 1.1–1.6 g/cm³ (varies by grade)
Solubility: Insoluble in water; soluble in aromatic hydrocarbons and some chlorinated solvents
Vapor Pressure: Negligible at room temperature
Auto-ignition Temperature: Not easily ignited
Viscosity: Not applicable as a solid

Stability and Reactivity

Chemical Stability: Stable under recommended handling and storage.
Hazardous Reactions: Reacts at high temperature with strong oxidizers to release toxic gases.
Hazardous Decomposition Products: Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide during pyrolysis or fire.
Conditions to Avoid: Prolonged heating above decomposition temperatures, direct flame contact, strong acids and alkalis.
Polymerization: Does not occur under normal temperature and pressure.

Toxicological Information

Acute Toxicity: Low oral, dermal, and inhalation toxicity. Animal studies suggest LD50 (oral, rat) exceeds 5000 mg/kg.
Skin Irritation: Temporary redness, dryness possible from repeated exposure.
Eye Irritation: May cause minor transient discomfort.
Respiratory Effects: Dust inhalation might trigger coughing or sneezing; high vapor concentrations from heating irritate mucous membranes.
Chronic Exposure: Long-term health effects have not been observed at normal occupational levels. CPO is not listed as carcinogen by IARC, NTP, or OSHA.
Other Data: Not mutagenic or teratogenic in validated studies.

Ecological Information

Environmental Fate: Persists in soils and aquatic sediments, with slow degradation.
Bioaccumulation Potential: Low for aquatic organisms, does not tend to accumulate significantly in living tissue.
Aquatic Toxicity: No acute toxicity data for fish or invertebrates suggest significant low hazard at expected environmental concentrations.
Mobility in Soil: Immobile due to low solubility in water.
Other Effects: Physical obstruction possible if large volumes are released to water bodies. No known impact on the ozone layer or greenhouse gases.

Disposal Considerations

Waste Disposal Methods: Recover and reuse if practical; otherwise send to landfill or incineration facility permitted for chlorine-containing plastics.
Incineration: Use facilities equipped with appropriate flue gas scrubbing systems to control acid gases.
Recycling: Industrial users can recycle CPO scrap through some plastics reprocessing.
Contaminated Packaging: Triple rinse containers then dispose according to local regulations or offer for recycling if available.
Special Instructions: Separation of CPO waste from organic solvents or incompatible wastes is recommended to prevent hazardous reactions.

Transport Information

UN Number: Not classified as a hazardous material for transport.
Transport by Road, Rail, Sea, Air: Not regulated under ADR/RID/IMDG/IATA.
Proper Shipping Name: Chlorinated Polyolefin, or Polyolefin Compound
Packing Group: Not assigned
Marine Pollutant: No
Special Precautions for User: Protect containers from physical damage and moisture. Stack and stow securely.

Regulatory Information

OSHA Status: Not regulated as a hazardous substance in the United States.
TSCA Inventory: Listed
REACH Registration (EU): Meets requirements for registration, subject to annual manufacture/import tonnage.
International Inventories: Listed in AICS (Australia), DSL (Canada), ENCS (Japan), PICCS (Philippines), ECL (Korea), IECSC (China).
SARA Title III: Not subject to Section 302/304/313 reporting.
California Proposition 65: No ingredients regulated under Prop 65.
Labeling Requirements: Industrial labeling for traceability and basic handling instruction.
Additional Regulations: Product workplace use requires compliance with general PPE and hygiene practices as set by OSHA.