Yang Guang Resin Chemical Co., Ltd

Знание

MSDS for HVAMA Resin (Carboxyl-Modified Vinyl Chloride/Vinyl Acetate Copolymer)

Identification

Product Name: HVAMA Resin
Chemical Family: Carboxyl-modified copolymer of vinyl chloride and vinyl acetate
Synonyms: Carboxylated PVC-VA copolymer, HVAMA resin
Intended Use: Industrial adhesive, coatings and plastic formulation
Supplier: Manufacturer’s name, local distributor information, and emergency contact number
CAS Number: 25086-85-1
Recommended Restriction: Not intended for food, drug, or cosmetic use
Product Form: White powder or granular solid with characteristic faint odor
Relevant Identified Uses: Solvent-based inks, coatings, adhesives for automotive, construction, flooring sectors
Contact Email: Listed for technical queries or emergencies

Hazard Identification

GHS Classification: Not classified as hazardous under GHS for most formulations
Signal Word: None expected under typical use
Hazard Statement: Fine dust can cause mechanical irritation to eyes and respiratory tract
Pictograms: No mandatory pictogram
Precautionary Statement: Avoid generating dust; ventilate work areas; use personal protection in uncontrolled environments
Potential Acute Health Effects: Minor skin and eye irritation possible; uncommon reactions include coughing, mild respiratory discomfort if inhaled
Potential Chronic Effects: Prolonged inhalation of dust could aggravate asthma or respiratory conditions
Other Hazards: Combustible as dust in confined spaces; does not bioaccumulate
NFPA Rating: Health: 1, Flammability: 1, Reactivity: 0

Composition / Information on Ingredients

Vinyl chloride-vinyl acetate copolymer: 90–98% (CAS 25086-85-1)
Carboxyl-modified monomer: 0.5–5%
Residual monomers: Less than 1%
Plasticizer (if present): Up to 3%
Additives: Trace stabilizers, process aids below 1%
Impurities: Residual solvents and low molecular weight fractions below detection thresholds
Physical Form: White/off-white powder; slightly sweet odor

First Aid Measures

Inhalation: Remove affected person to fresh air; get medical attention for persistent irritation or breathing difficulty
Skin Contact: Wash with soap and water; take off contaminated clothing; symptoms like redness need medical check
Eye Contact: Rinse cautiously with water for several minutes holding eyelids open; seek medical help if irritation persists
Ingestion: Rinse mouth; seek immediate medical attention if large quantities are swallowed; do not induce vomiting unless directed
Notes for Physicians: Symptomatic treatment based on clinical judgment; no specific antidote

Fire-Fighting Measures

Suitable Extinguishing Media: Use water spray, dry chemical, CO₂, or foam
Unsuitable Media: High-velocity water jets may spread dust
Specific Hazards: Combustion produces hydrogen chloride, phosgene, and carbon monoxide
Protective Equipment: Wear full protective gear and self-contained breathing apparatus
Special Fire-Fighting Procedures: Contain runoff; approach from upwind to avoid smoke
Thermal Decomposition Products: Hydrogen chloride fumes; small amounts of other organochlorine gases

Accidental Release Measures

Personal Precautions: Prevent dust formation; ventilate the area; use dust masks and gloves
Environmental Precautions: Prevent entry into drains or watercourses; sweep up without generating dust
Methods for Clean-up: Use vacuum with HEPA filter or wet sweeping; collect in appropriate waste containers
Safe Handling: Store sweepings in sealed plastic bags; dispose in accordance with local authority guidelines
Emergency Response: Isolate area; notify supervisory personnel; restrict unprotected access to spill area
Decontamination: Wash contaminated work surfaces with water after removal

Handling and Storage

Precautions for Safe Handling: Use local extraction at points of dust generation; avoid eating, drinking, or smoking during handling
Storage Conditions: Store in tightly closed containers, cool, dry, well-ventilated area
Incompatible Materials: Strong oxidizers, acids, strong bases
Packaging Materials: Polyethylene-lined bags, sealed fiber drums, non-metallic containers to prevent static
Special Shipping Requirements: Label and seal containers; avoid stacking excessively to prevent package collapse

Exposure Controls and Personal Protection

Occupational Exposure Limits: None established for this polymer; follow local dust limits (OSHA PEL: 15 mg/m³ total dust)
Engineering Controls: Ventilation at points of dust release; local exhaust preferred over general ventilation
Personal Protection: Safety goggles, particulate respirator (NIOSH-approved), chemical-resistant gloves, protective work clothing
Hygiene Measures: Wash hands after handling; launder contaminated clothing regularly
Environmental Controls: All process effluent should be filtered before discharge to minimize environmental load

Physical and Chemical Properties

Appearance: White to off-white powder or granules
Odor: Faint, slightly sweet
Odor Threshold: Not determined
pH: Not applicable for dry product
Melting Point/Range: Softening interval 120–160°C
Boiling Point: Decomposes before boiling
Flash Point: Not applicable; dust may ignite at >400°C in air
Evaporation Rate: Not relevant
Flammability (solid, gas): Combustible as dust in air
Explosive Properties: Dust explosion possible in confined space
Vapor Pressure: Negligible at ambient temperatures
Relative Density: 1.33–1.38 g/cm³
Solubility: Insoluble in water; soluble in ketones, esters
Partition Coefficient (n-octanol/water): Not applicable
Decomposition Temperature: Above 200°C
Viscosity: Not applicable
Bulk Density: 0.5–0.8 g/cm³
Stability: Stable under normal handling and storage

Stability and Reactivity

Chemical Stability: Stable at room temperature; avoid temperatures above 200°C
Reactivity: Not reactive under normal conditions
Hazardous Reactions: Combustion or heating above decomposition can release toxic vapors
Incompatibilities: Strong acids, alkalis, oxidizing agents
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, hydrogen chloride, trace phosgene
Conditions to Avoid: Heat, open flame, sparks, dust accumulation, static discharge

Toxicological Information

Acute Toxicity: No acute toxicity data available for base polymer; dust may irritate respiratory tract
Skin Corrosion/Irritation: Prolonged or repeated contact may cause mild irritation
Serious Eye Damage/Irritation: Dust particles may cause redness, discomfort
Sensitization: Not classified as skin sensitizer
Germ Cell Mutagenicity: No evidence from available studies
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Reproductive Toxicity: No data indicating reproductive health impact
STOT-Single Exposure: Unlikely under normal handling
STOT-Repeated Exposure: Unlikely if dust levels controlled; not bioavailable
Aspiration Hazard: No risk in typical workplace scenarios
Other Effects: Vinyl chloride monomer is carcinogenic, but residual monomer in finished polymer is negligible

Ecological Information

Ecotoxicity: No major hazards for aquatic and terrestrial life at routine discharge levels
Persistence and Degradability: Polymer is slow to degrade; not expected to break down rapidly in environment
Bioaccumulation Potential: Low, due to high molecular weight and poor water solubility
Mobility in Soil: Sinks in water, binds to sediment
Other Adverse Effects: None anticipated under normal industrial use
Environmental Precaution: Avoid uncontrolled discharge to watercourses or soil; prevent dust generation outdoors

Disposal Considerations

Waste Disposal Method: Landfill in compliance with local, regional, and national laws
Incineration: Possible at approved facility with acid gas scrubbing for hydrogen chloride
Contaminated Packaging: Rinse and dispose as non-hazardous waste, or reuse after cleaning
UN Number: Not regulated as dangerous waste
Precautions: Avoid dust dispersal during handling; keep away from open flames in disposal area

Transport Information

UN Number: None assigned
Proper Shipping Name: Not regulated as a hazardous substance for transport
Transport Hazard Class: Non-hazardous solid
Packing Group: Not assigned
Environmental Hazards: Not classified as marine pollutant
Special Transport Precautions: Protect from moisture, secure containers to prevent movement
Regulatory Status: Not covered under ADR, IMDG, IATA regulations

Regulatory Information

Safety, Health and Environmental Regulations: Product regulated under OSHA Hazard Communication Standard as nuisance dust
TSCA: Listed on United States TSCA inventory
REACH: Exempt as polymer within EU REACH regulation; monomer registration applies
DSL/NDSL: Listed on Canadian inventories
Right-To-Know Components: May include reporting for residual vinyl chloride in certain jurisdictions
Labeling Requirements: Follow local workplace labeling laws
Other Regulatory Information: Users should consult regional regulatory agencies for further guidance on workplace standards and product stewardship
RoHS/ELV/WEEE: Not expected to contain restricted substances above limits for electronic or automotive applications