Material Safety Data Sheet (MSDS) for Hydroxyl-Modified Vinyl Chloride/Vinyl Acetate Terpolymers

1. Identification

Product Name: Hydroxyl-Modified Vinyl Chloride/Vinyl Acetate Terpolymers
Chemical Family: Vinyl copolymers
Synonyms: Reactive Vinyl Terpolymer, Hydroxyl Vinyl Copolymer
Recommended Uses: Industrial coatings, adhesives, printing inks, specialty films
Supplier Details: Manufacturer address, contact number, emergency phone line
Emergency Contact: CHEMTREC, country-specific poison emergency number

2. Hazard Identification

Classification: Not classified as hazardous by GHS/OSHA. Dust and fumes may irritate respiratory system. Handling at high temperatures emits hydrogen chloride and other organics.
Label Elements: No signal word, hazard pictograms, or hazard statements assigned under normal use
Other Hazards: Hot processing can form harmful vapors. Dust may form explosive mixtures in air. May cause mild skin or eye irritation on contact.

3. Composition / Information on Ingredients

Component 1: Vinyl chloride – 60-70%
Component 2: Vinyl acetate – 20-30%
Component 3: Hydroxyalkyl methacrylate – 1-5%
Additives: Stabilizers and processing aids – less than 2%
Impurities: Monomer residues, trace solvents below threshold limits
Chemical Abstracts Service (CAS) Numbers: Assigned per monomer, check supplier for specific blend details

4. First Aid Measures

Inhalation: Move person to fresh air. Seek medical attention if symptoms like coughing or shortness of breath persist.
Skin Contact: Wash with mild soap and water. Remove contaminated clothing. See physician if irritation persists.
Eye Contact: Remove contact lenses if worn. Flush eyes with water for at least 15 minutes. Get medical attention for ongoing discomfort.
Ingestion: Rinse mouth. Do not induce vomiting. Get medical advice if large quantities consumed.
General Advice: Always seek medical assessment when exposure leads to symptoms or concern

5. Fire-Fighting Measures

Suitable Extinguishing Media: Water fog, foam, dry chemical, carbon dioxide
Unsuitable Media: Direct water jet
Specific Hazards: Burns give off carbon monoxide, hydrochloric acid, carbon dioxide, and phosgene
Protective Equipment: Self-contained breathing apparatus and full protective gear recommended
Advice for Firefighters: Cool containers with water spray. Move uninvolved containers from area. Avoid runoff to sewers, report release as required.

6. Accidental Release Measures

Personal Precautions: Ventilate area. Wear dust mask, safety goggles, nitrile gloves, and long sleeves.
Environmental Precautions: Prevent spread to drains, water supplies, and soil. Notify authorities if hazardous quantities enter environment.
Methods for Containment: Sweep or vacuum spillage using non-sparking tools.
Cleanup Methods: Collect spilled powder into marked containers for disposal. Use damp cloth for fine residue.
Other Advice: Minimize dust formation. Dispose in accordance with local regulations.

7. Handling and Storage

Precautions for Safe Handling: Use only in well-ventilated areas. Minimize dust generation. Avoid direct body, eye, or inhalation exposure. Ground all equipment handling polymer powders to prevent static discharge.
Storage Conditions: Store in tightly sealed containers, away from food, heat sources, direct sunlight, and moisture. Keep away from oxidizers and acids.
Specific End Uses: Used in industrial settings. Keep out of reach of children and untrained parties.

8. Exposure Controls and Personal Protection

Exposure Limits: OSHA PEL and ACGIH TLV available for vinyl chloride and vinyl acetate monomers; finished terpolymer has no established exposure limits.
Engineering Controls: Local exhaust for dust/fume. Enclosed processes if hot processing.
Personal Protection:
Respiratory: Dust mask or respirator (e.g., NIOSH-rated P2/P3) when airborne particles present.
Skin: Impermeable gloves (nitrile recommended), long sleeved workwear.
Eye: Chemical safety goggles.
Environmental: Avoid uncontrolled release in drains, surface and ground waters.

9. Physical and Chemical Properties

Physical Form: Off-white powder, granules, or resin pieces
Odor: Faint, sweet chemical odor
pH: Neutral (aqueous dispersions)
Melting Point: 120–160°C (varies by grade)
Boiling Point: Not applicable (solid at room temp)
Flash Point: >200°C
Vapor Pressure: Negligible at 20°C
Solubility: Insoluble in water; soluble in ketones and some esters
Specific Gravity: ~1.3–1.4
Partition Coefficient (n-octanol/water): Not applicable
Evaporation Rate: Not volatile under standard conditions
Autoignition Temperature: >350°C
Upper/Lower Flammability: Dust/air mixture explosion risk possible

10. Stability and Reactivity

Chemical Stability: Stable under recommended storage and handling. No hazardous polymerization expected.
Incompatible Materials: Strong oxidizers, strong acids, bases, amines, and reducing agents.
Conditions to Avoid: Excess heat, direct flame, moisture ingress
Hazardous Decomposition: Hydrogen chloride, carbon monoxide, carbon dioxide, small quantities of phosgene
Reactivity: No significant reactivity under normal process or storage conditions

11. Toxicological Information

Acute Toxicity: Low oral and dermal toxicity expected for polymer; not classified as toxic.
Skin Corrosion/Irritation: Mild irritation possible on prolonged or repeated contact.
Serious Eye Damage/Irritation: May cause transient discomfort or redness.
Respiratory Sensitisation: Dust may trigger pre-existing asthma or similar conditions.
Chronic Effects: Inhalation of monomer vapors from hot processing can cause headaches, nausea.
Carcinogenicity: The finished thermoplastic is not classed as carcinogenic; monomeric vinyl chloride is a known human carcinogen but not present above threshold limit.
Mutagenicity and Reproductive Toxicity: No data showing mutagenicity or developmental hazard in end-use form

12. Ecological Information

Ecotoxicity: Polymer itself shows low toxicity to aquatic life. Dust may be harmful in large concentrations.
Mobility: Solid resin; floats or sinks, does not dissolve in water.
Persistence and Degradability: Degrades over many years in environment.
Bioaccumulative Potential: Not expected to bioaccumulate. Large particles too big for absorption by aquatic organisms.
Other Adverse Effects: Possible physical hazards to animals by ingestion or entanglement. Avoid uncontrolled release into surroundings.

13. Disposal Considerations

Waste Treatment Methods: Send material to authorized chemical waste facility. Dispose by incineration under controlled conditions if allowed.
Special Precautions: Do not discharge to waterways. Do not landfill with municipal solid waste without pre-approval.
Contaminated Packaging: Clean, crush or puncture emulsified drums or packaging prior to recycling or disposal.

14. Transport Information

UN Number: Not regulated as a hazardous material for transport
Proper Shipping Name: Polymeric resin, not regulated
Hazard Class: N/A
Packing Group: N/A
Marine Pollutant: Not applicable
Special Precautions: Avoid generating dust during transport. Secure loads to prevent spillage.

15. Regulatory Information

OSHA Status: Not hazardous under OSHA Hazard Communication Standard
TSCA Inventory: Components listed or compliant
REACH Status: Exempt as a polymer; monomer registration completed as needed
SARA Title III: No reportable quantities for end-use polymer
Other Regulations: Follow handling restrictions as per federal, state, and local codes. Label in accordance with workplace hazardous materials regulations as required.