Contact Us
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
© 2026 Boxa Plastic, All Right Reserved
Product Name: Acrylonitrile Styrene (AS/SAN)
Chemical Family: Thermoplastic Polymer
Chemical Formula: (C8H8)n·(C3H3N)m
Synonyms: Styrene Acrylonitrile Copolymer, SAN Resin
CAS Number: 9003-54-7
Recommended Use: Used in injection molding, household items, automotive parts
Supplier: Contact manufacturer, distributor, or supplier of SAN resin
Emergency Telephone: Manufacturer emergency phone number or CHEMTREC
GHS Classification: Not classified as hazardous according to OSHA Hazard Communication Standard
Physical Hazards: May form combustible dust concentrations in air, pellets are slippery when spilled
Health Hazards: Mechanical irritation of eyes, skin, and respiratory tract possible from dust or particulates
Label Elements: No required pictograms or hazard statements, but good hygiene practices recommended
Potential Environmental Effects: Not expected to produce significant adverse environmental effects at use concentrations
Component: Styrene Acrylonitrile Copolymer
CAS Number: 9003-54-7
Concentration: 98–100% by weight
Minor Impurities: Residual monomers such as styrene (CAS 100-42-5) and acrylonitrile (CAS 107-13-1), amounts typically less than 1%
Additives: May contain stabilizers, colorants, processing agents below 1–2% total
Inhalation: Move to fresh air if exposure to dust, fumes, or combustion gases leads to discomfort; seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water; seek medical advice if irritation develops
Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses if easy; continue rinsing and seek medical help if irritation does not subside
Ingestion: Rinse mouth with water, do not induce vomiting, seek medical advice if discomfort occurs
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Extinguishing Media: None known, though avoid high-pressure waterjet that may spread burning material
Specific Hazards: Combustion produces toxic gases including carbon monoxide, carbon dioxide, hydrogen cyanide, styrene, acrylonitrile vapors
Special Protective Equipment: Full protective clothing and self-contained breathing apparatus for firefighting in enclosed spaces
Firefighting Procedures: Use water spray to cool surfaces, evacuate area if necessary, avoid inhalation of fumes and gases
Explosion Hazard: Fine dust may form explosive mixtures with air under certain conditions
Personal Precautions: Avoid breathing dust, provide adequate ventilation, use personal protection equipment appropriate for the job
Environmental Precautions: Avoid releasing pellets or dust into drains and waterways, contain spill to prevent environmental contamination
Spill Clean-up: Sweep or vacuum material; collect for disposal in appropriate containers; minimize dust generation; wash area thoroughly
Methods for Disposal: Follow local, regional, and national regulations for disposing of spill and cleanup materials
Handling: Prevent spills and dust formation, use with adequate ventilation, employ good industrial hygiene practices, keep containers closed when not in use
Safe Handling Advice: Avoid contact with skin, eyes, clothing, and do not breathe dust or fumes from thermal processing, wash hands after handling
Storage Requirements: Store in cool, dry, well-ventilated area, away from strong oxidizing agents or sources of ignition, keep containers tightly sealed
Storage Class: General chemicals, non-flammable solid polymer
Other Precautions: Incompatible with strong acids, bases, and oxidizers; protect from sunlight and moisture, avoid storing near processes that generate extreme heat
Exposure Limits: OSHA PEL and ACGIH TLV for styrene (20 ppm TWA), acrylonitrile (2 ppm TWA) though resin contains low levels of these monomers
Engineering Controls: Use local exhaust ventilation, enclosures, or general dilution ventilation as necessary to minimize dust and fume exposure
Personal Protective Equipment: Safety goggles to protect eyes, gloves to prevent hand contact, long-sleeved clothing, and dust mask or respirator if dust/fume concentrations exceed exposure limits
Hygiene Measures: Wash hands and face after handling, do not eat, drink, or smoke in work area, remove contaminated clothing promptly
Appearance: Solid pellets or granules, colorless to white or colored by additives
Odor: Negligible odor in solid form; may emit faint plastic-like smell
Odor Threshold: Not applicable for solid resin
pH: Not soluble in water; not applicable
Melting Range: Typically 105–120°C (221–248°F)
Boiling Point: Not applicable to solid resin
Flash Point: >300°C (572°F) for polymer
Flammability: Combustible, not highly flammable
Explosive Limits: Not applicable, but dust may form explosive mixtures
Vapor Pressure: Not applicable at ambient conditions
Density: 1.08–1.10 g/cm3
Solubility: Insoluble in water, soluble in some organic solvents
Partition Coefficient: Not determined
Auto-Ignition Temperature: Approx. 450°C (842°F)
Decomposition Temperature: >300°C (572°F)
Viscosity: Not applicable
Chemical Stability: Stable under recommended handling and storage conditions
Reactivity: Not reactive under normal processing or storage
Conditions to Avoid: Prolonged heating above decomposition temperature, contact with open flame, formation of dust clouds
Incompatible Materials: Strong oxidizers, acids, bases, and nitrating agents
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, hydrogen cyanide, styrene, acrylonitrile, and other toxic gases under fire or thermal decomposition
Polymerization Hazard: Not likely for finished polymer
Acute Toxicity: Low acute toxicity for polymer; dust may cause irritation to eyes, skin, and respiratory tract
Chronic Effects: Prolonged exposure to dust or fumes during processing may aggravate existing respiratory conditions
Sensitization: Not known to cause sensitization, though additives may present individualized risk
Carcinogenicity: Finished resin not classified as carcinogenic; residual monomers like styrene and acrylonitrile considered possible human carcinogens at high exposures over long periods
Mutagenicity/Reproductive Toxicity: Finished polymer has not shown mutagenic or reproductive toxicity; monomers of concern at higher concentrations
Routes of Exposure: Inhalation of dust/fume, skin contact with dust/pellets, eye contact with dust
Symptoms: Irritation, coughing, redness, discomfort from dust exposure
Ecotoxicity: Not considered toxic to aquatic organisms; solid pellets may pose ingestion hazard for wildlife
Aquatic Mobility: Pellets sink, not soluble in water, low potential for leaching
Persistence and Degradability: Resistant to biodegradation in most environments; may persist in landfill or aquatic environments for long periods
Bioaccumulation: Low potential for bioaccumulation based on the properties of the polymer
Other Effects: Spills to watercourses may result in physical obstructions affecting aquatic wildlife
Additional Issues: Poorly managed plastic waste contributes to microplastic pollution in the environment
Product Disposal: Recycle whenever possible, incinerate at authorized facilities or landfill in accordance with local, state, and national regulations
Waste Treatment Methods: Use mechanical recycling for clean, segregated scrap, or submit to waste-to-energy facility
Packaging Disposal: Rinse and recycle packaging materials if possible; otherwise dispose with general industrial waste
Environmental Precautions: Do not dispose of in surface water, storm drains, or uncontrolled locations; prevent material from entering natural water bodies
Special Considerations: Industrial users should follow site-specific waste management protocols
UN Number: Not regulated as hazardous for transport
Proper Shipping Name: Acrylonitrile Styrene Copolymer, or Plastics Material, in solid form
Transport Hazard Class: Not classified as dangerous for major transport regulations
Packing Group: Not applicable
Environmental Hazards: No additional environmental transport hazard identified
Special Precautions for User: Avoid generating and releasing dust during loading/unloading; secure containers for transit to prevent spillage
Transport Labels: None required
OSHA: Not classified as hazardous under OSHA Hazard Communication Standard in solid form
TSCA: All ingredients listed or exempt
REACH: Registered as polymer, monomer substances pre-registered as required in the EU
California Proposition 65: Contains trace styrene, listed under Proposition 65 as a substance known to cause cancer
Other Regulations: Complies with international, federal, and regional requirements for synthetic polymers; users should consult specific country or local regulations
Labelling Requirements: No standard hazard label for finished polymer products; safety data available upon request
Worker Training: Training required for users in handling plastics safely and managing dust and fume exposure
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
