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Material Safety Data Sheet (MSDS) for Acrylonitrile Butadiene Styrene (ABS)

Identification

Product Name: Acrylonitrile Butadiene Styrene
Other Names: ABS, ABS Resin, Thermoplastic ABS
Recommended Use: Plastic manufacturing, automotive parts, electronic housings, piping systems, toys
Manufacturer/Distributor: Major chemical suppliers, plastics manufacturers, resins distributors
Contact Information: Manufacturer’s address, emergency contact number, technical support number
Chemical Formula: Variable due to polymer blend; typical repeat unit: (C8H8•C4H6•C3H3N)
CAS Number: 9003-56-9
UN Number: Not applicable (non-hazardous under transportation regulations in solid form)

Hazard Identification

Emergency Overview: White or off-white granules or pellets, solid, slight chemical odor
GHS Classification: Not classified as hazardous in solid form; possible hazards during heat processing
Potential Health Effects: Dust may irritate eyes, skin, throat, respiratory system; heated emissions can cause headaches, dizziness, irritation
Label Elements: None required for finished product; precautionary measures for dust and fumes
Signal Word: None required under normal handling
Risk Phrases: May cause irritation upon mechanical or thermal decomposition
Environmental Risk: Persistent; not readily biodegradable, can impact aquatic environments if released in large amounts

Composition / Information on Ingredients

Acrylonitrile Content: 15–35%
Butadiene Content: 5–30%
Styrene Content: 40–60%
Additives: Pigments, heat stabilizers, flame retardants, lubricants (exact content varies between grades)
Impurities: Residual monomers (usually less than 1%)
Form: Pellets, granules, or powder
Appearance: Opaque, light-colored to white, sometimes colored upon customer request

First Aid Measures

Inhalation: Remove affected person to fresh air, seek medical attention for persistent discomfort, deliver oxygen if breathing trouble occurs due to fume inhalation
Skin Contact: Wash with soap and water, remove contaminated clothing, provide medical attention if irritation or burns develop after exposure to molten polymer
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, continue rinsing, visit a physician if discomfort remains
Ingestion: Unlikely; rinse mouth, do not induce vomiting, consult a doctor for advice
Thermal Burn: Cool with running water, cover with sterilized dressing, seek medical help

Fire-Fighting Measures

Flammability: Combustible at high temperatures; may emit toxic fumes
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Extinguishing Media: Direct water jet on molten polymer (spatter risk)
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, hydrogen cyanide, acrylonitrile, styrene vapors
Protective Equipment: Full protective gear, self-contained breathing apparatus (SCBA)
Special Procedures: Evacuate area, prevent runoff from fire control entering drains, cool containers with water from a safe distance

Accidental Release Measures

Personal Precautions: Wear gloves, safety goggles, dust mask if powder or dust
Environmental Precautions: Avoid release into environment, prevent plastic pellets from reaching drains, soil, or waterways
Cleaning Procedures: Sweep or vacuum, avoid creating dust, dispose of in suitable containers
Containment: Stop further release, gather spilled material with tools, store in sealed, labeled containers for reuse or disposal

Handling and Storage

Handling: Use with adequate ventilation, avoid breathing dust or fumes, keep away from open flames and high heat sources
Avoid: Generating dust, contact with strong oxidizers, inhalation of vapors from melt processing
Storage Conditions: Store in cool, dry place away from direct sunlight, moisture, temperature extremes
Storage Containers: Use original packaging or sealed, labeled bins
Special Notes: Electric discharge can ignite dust clouds in rare cases; take precautions against static buildup in large bulk

Exposure Controls and Personal Protection

Engineering Controls: Local exhaust ventilation for operations with dust or fume generation; process enclosures for high temperature work
Exposure Limits: No specific legal limits for ABS; monitor for residual monomers (acrylonitrile: OSHA PEL 2 ppm)
Personal Protective Equipment (PPE): Safety goggles, gloves resistant to hot materials, long sleeves; respiratory protection when dust or fumes are likely
Hygiene: Wash hands after handling, avoid eating or drinking in processing areas
Environmental Protection: Prevent fugitive emissions into workplace or outdoors, install particle traps in ventilation systems

Physical and Chemical Properties

Appearance: Opaque, solid, granules or powder; various colors possible
Odor: Mild chemical or plastic odor, more pronounced if heated
pH: Not applicable (insoluble in water)
Melting Range: Softening at 90–125°C (194–257°F), dependent on grade
Boiling Point: Decomposes before boiling
Flash Point: Over 350°C for base resin
Autoignition Temperature: Approx. 466°C (870°F)
Density: 1.03–1.07 g/cm³
Solubility: Insoluble in water; soluble in certain organic solvents at elevated temps
Vapor Pressure: Negligible at room temperature
Partition Coefficient (n-octanol/water): Not applicable due to polymer nature

Stability and Reactivity

Chemical Stability: Stable under typical use and storage conditions
Conditions to Avoid: Excessive heat, open flame, strong UV exposure, contact with powerful oxidizers
Hazardous Reactions: None under normal use
Decomposition Products: Fumes containing monomers, carbon oxides, hydrogen cyanide when strongly heated or burned
Incompatibility: Strong acids, strong oxidizing agents, chlorinated hydrocarbons
Polymerization Risks: Will not occur in finished form

Toxicological Information

Routes of Exposure: Inhalation (dust/fumes), skin contact (granules, hot melt), eye contact
Acute Effects: Dust or fumes may irritate mucous membranes, eyes, skin; molten material can cause burns
Chronic Effects: Long-term exposure to raw monomers (e.g., acrylonitrile, butadiene, styrene) linked with higher cancer risk; finished product generally considered non-carcinogenic
Sensitization: Not known to cause skin sensitization
Mutagenicity/Teratogenicity: Not anticipated for finished plastic
Toxicity Data: LD50 values not applicable; product as sold is considered of very low toxicity
Medical Conditions Aggravated by Exposure: Pre-existing respiratory or skin conditions may worsen with repeated exposure to dust or fumes

Ecological Information

Aquatic Toxicity: ABS does not dissolve, may physically harm aquatic organisms due to ingestion or accumulation
Persistence/Degradability: Not readily biodegradable, breaks down very slowly in the environment
Bioaccumulation: Little evidence for significant bioaccumulation in food chains
Mobility in Soil: Minimal mobility, settles out
Other Issues: Pellet spills pose threat to marine life (“nurdle” problem), long-term plastic pollution
Regulatory Concerns: Included in microplastic pollution mitigation recommendations worldwide

Disposal Considerations

Waste Treatment: Recycle material whenever possible; check local facilities for plastic recycling capabilities
Incineration: Permitted in licensed facilities equipped to handle plastic products and acid gases
Landfill: Only as last resort; ABS does not break down in landfill conditions
Special Precautions: Do not incinerate in open fires; avoid environmental release of pellets, powder, and waste
Regulatory Requirements: Follow all regional, national, and local regulations on waste management

Transport Information

UN Number: Not regulated for transport
Transport Hazard Class: Not applicable (finished product is not hazardous)
Packing Group: None required
Labels: No hazard label required
Environmental Hazards: Prevent loss of pellets into waterways during transport; secure packaging to avoid spillage
Special Precautions: Prevent static discharge and dust creation in bulk transport; comply with weight and containerization rules

Regulatory Information

OSHA Status: Not hazardous under OSHA regulations in solid polymer form
TSCA Status: Listed on US Toxic Substances Control Act inventory
EPA Regulations: Not regulated as a special waste; must meet local disposal criteria
EU Classification: Not classified as dangerous for supply or conveyance under current EU laws
REACH Registration: Polymer exempt; monomers may be subject to regulation
Other Regulations: RoHS compliant (free of restricted heavy metals by default), may contain flame retardants that demand further review
Community Right-to-Know: No chemicals subject to SARA Title III reporting in typical product