Material Safety Data Sheet for Chlorinated Ethylene-Vinyl Acetate Copolymer

Identification

Product Name: Chlorinated Ethylene-Vinyl Acetate Copolymer
Chemical Family: Copolymers of ethylene and vinyl acetate, modified with chlorine
CAS Number: 24937-78-8
Manufacturer: Refer to supplier or importer information on product packaging
Recommended Use: Used in wire and cable insulation, adhesives, flexible films, foams, and coatings
Emergency Contact: Provide details from local supplier or chemical safety department
Synonyms: Chlorinated EVA, Chlorinated Ethylene-Vinyl Acetate Resin
REACH Registration Number: Available upon request from supplier
Product Code: See product label or shipping document
Contact Number: Refer to product safety label

Hazard Identification

GHS Classification: Not classified as hazardous under GHS criteria; can melt and release fumes under certain conditions
Key Hazards: May release hydrochloric acid, acetic acid, and other irritant gases during thermal decomposition or burning; dust could cause respiratory irritation; hot material may cause burns
Signal Word: No signal word required for solid form, caution necessary during processing
Hazard Statements: Fume inhalation may irritate respiratory tract, skin, and eyes; contact with hot molten resin may result in severe burns
Precautionary Statements: Avoid inhalation of processing fumes; prevent skin and eye contact with hot product; ensure local exhaust ventilation

Composition / Information on Ingredients

Chemical Name: Chlorinated Ethylene-Vinyl Acetate Copolymer
Content: 98–99% by weight
Chlorine Content: Typically 8–35% (varies by grade)
Other Additives: Processing aids, antioxidants less than 2%
Impurities: Trace quantities of residual monomers, acetic acid as an impurity below 0.5%
CAS Number: 24937-78-8 (EVA), 7782-50-5 (Chlorine, residual trace), 64-19-7 (Acetic Acid, impurity)

First Aid Measures

Inhalation: Move person to fresh air; if breathing becomes difficult, seek immediate medical attention
Skin Contact: Cool burned area with water for at least 15 minutes if contact with molten copolymer occurs; do not remove solidified material from skin; get medical assistance
Eye Contact: Rinse eye thoroughly with water for several minutes; if irritation persists, consult a healthcare provider
Ingestion: Rinse mouth with water, do not induce vomiting; seek medical advice particularly if large quantities are ingested
Notes for Physicians: Treat burns conventionally; treat symptomatically for respiratory irritation or chemical exposure

Fire-Fighting Measures

Suitable Extinguishing Media: Use water spray, foam, dry chemical, or carbon dioxide for small fires; avoid using water jets directly on burning polymer
Hazards from Combustion: Produces hydrochloric acid, acetic acid, carbon monoxide, carbon dioxide, and other toxic gases at elevated temperatures
Special Protective Equipment: Firefighters must wear self-contained breathing apparatus and full protective gear
Special Fire-Fighting Procedures: Cool exposed containers with water spray; keep personnel upwind, evacuate area if fumes are uncontrolled

Accidental Release Measures

Personal Precautions: Use protective gloves, goggles, and respiratory protection if dust or fumes are present
Environmental Precautions: Prevent large quantities from entering drains, soil, or waterways; sweep up spilled solid product
Methods for Cleaning: Collect spilled pellets or granules for recycling or disposal; ventilate area if fumes present
Further Measures: Use industrial vacuum if available, suppress dust

Handling and Storage

Safe Handling Guidelines: Operate processing equipment with adequate local exhaust ventilation; avoid contact with hot or molten resin
Technical Measures: Store in tightly sealed containers; keep away from heat, open flame, sunlight, and oxidizers; minimize dust generation
Storage Conditions: Store at temperatures below 40°C in dry, cool, and well-ventilated buildings; protect from humidity
Incompatible Materials: Oxidizing agents, strong acids, alkalis
Other Notes: Maintain good hygiene practices after handling, prevent build-up of dust in processing areas

Exposure Controls and Personal Protection

Occupational Exposure Limits: Nuisance dust: 10 mg/m³ total dust (ACGIH-TLV); fume exposure should be minimized as low as practicable
Engineering Controls: Install efficient extraction to remove fumes at process points; use general room ventilation for storage areas
Personal Protective Equipment: Safety glasses or goggles, flame-resistant gloves, antistatic workwear, suitable respiratory protection when dust or fumes are present
Hygiene Measures: Wash hands before eating, smoking, or using restroom; remove contaminated clothing before breaks

Physical and Chemical Properties

Form: Solid pellets, granules, or powder
Color: White to off-white or pale yellow
Odor: Slight, may present vinegar-like odor due to trace acetic acid
pH: Not applicable (insoluble solid)
Boiling Point: Decomposes before boiling
Melting Point: 65–110°C, depending on grade and composition
Flash Point: >340°C (literature values may vary by manufacturer)
Autoignition Temperature: Above 450°C
Solubility in Water: Insoluble
Density: 0.93–1.22 g/cm³ (depends on level of chlorination and composition)
Vapor Pressure: Not volatile
Vapor Density: Not applicable
Explosion Properties: Not explosive as a solid, dust may present a combustible dust hazard
Others: May release acetic acid and HCl gas at high processing temperatures

Stability and Reactivity

Chemical Stability: Stable at room temperature under recommended storage conditions
Conditions to Avoid: Prolonged heating, direct flame, contact with strong oxidizing agents
Decomposition Products: Hydrogen chloride, carbon monoxide, carbon dioxide, acetic acid, possible low molecular weight hydrocarbons
Potential Reactions: Violent reaction with strong oxidizers (i.e., peroxides, chlorine dioxide)
Polymerization: No hazardous polymerization expected

Toxicological Information

Acute Toxicity: Data for polymer as supplied shows very low acute toxicity (oral, dermal, inhalation); processing fumes may cause upper respiratory irritation
Chronic Effects: Frequent exposure to decomposition fumes linked to respiratory tract irritation and cough
Skin Contact: Prolonged contact with hot product causes thermal burns; dust may cause mild irritation
Eye Contact: Dust or fume exposure may result in irritation, redness, or transient discomfort
Inhalation: Breathing dust or fumes can cause throat discomfort, chest tightness in sensitive individuals
Carcinogenicity: No evidence of carcinogenicity for base copolymer or product as a whole
Sensitization: No known skin or respiratory sensitization data reported

Ecological Information

Aquatic Toxicity: Insoluble, low bioavailability in water; environmental toxicity expected to be low but persistent as microplastics
Persistence and Degradability: Very slow to degrade in nature; persistence in landfills or aquatic environments
Bioaccumulation: Not expected due to large molecular size
Mobility in Soil: Non-mobile, pellet form remains at site of deposition
Other Hazards: May present a hazard for animals if ingested as pellet or film, leading to blockage or reduced nutrition

Disposal Considerations

Waste Disposal Methods: Preferably recover or recycle; if disposal needed, incinerate in industrial facility or dispose of as non-hazardous industrial waste in compliance with local regulations
Special Precautions: Do not allow material or rinsate to enter sewers, surface water or groundwater; avoid landfill if recycling or energy recovery is available
Additional Guidance: Consult local waste management authority or product supplier for compliant disposal route

Transport Information

UN Number: Not regulated as a dangerous good
Proper Shipping Name: Chlorinated Ethylene-Vinyl Acetate Copolymer
Transport Hazard Class: Not assigned
Packing Group: Not allocated
Marine Pollutant: Not classed as marine pollutant
Transport Precautions: Protect packaging from moisture, rough handling, and prolonged exposure to sunlight during transport

Regulatory Information

Labeling: Not classified as a hazardous chemical in most countries for transportation or storage
REACH Status: Registration or exemption status must be confirmed with manufacturer or importer
Inventories: Listed or compliant with TSCA (USA), EINECS/ELINCS (EU), ENCS (Japan), DSL (Canada)
Other Applicable Legal Requirements: OSHA hazard communication standard (29 CFR 1910.1200), EU CLP Regulation, local workplace safety legislation
Restrictions: Not subject to export controls or special restrictions under standard chemical safety frameworks; always refer to local regulations for updates and permissible applications