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Chemical Name: Poly(methyl methacrylate)
Common Names: Acrylic, Acrylite, Lucite, Perspex, Plexiglas
Appearance: Transparent, rigid, lightweight plastic, typically available in sheets, rods, or granules
Main Use: Signs, displays, glazing, protective barriers, screens, aquariums, lighting fixtures, automotive parts, electronics housings
Odor: Odorless or may have faint acrylic smell if freshly machined or heated
Physical Hazards: Fine dust from cutting, sanding, or grinding can create fire or explosion risk if suspended in air; static charges from handling can ignite dust
Health Hazards: Dust and shavings can irritate eyes, nose, throat, or skin; overheating releases vapors that may cause headaches or dizziness
Environmental Risks: Degradation does not happen quickly, and pollution can persist in water or soil for years; wildlife may ingest, leading to harm
Combustibility: Catches fire easily if exposed to open flame or enough heat
Main Component: Poly(methyl methacrylate) polymer, typically over 99%
Monomers: Residual methyl methacrylate (trace amounts)
Additives: Pigments, plasticizers, impact modifiers, UV stabilizers (may be present, composition varies)
Hazardous Ingredients: Methyl methacrylate monomer at trace levels can cause allergic skin reaction or irritation if directly exposed in manufacturing or processing
Eye Contact: Flush eyes with lots of water, hold eyelids open, remove contact lenses if present, get medical help if irritation lingers
Skin Contact: Wash affected area with soap and water, avoid harsh scrubbing, seek medical advice if a rash develops or irritation persists
Inhalation: Move to fresh air, keep calm, get medical attention if symptoms like headache or nausea do not go away
Ingestion: Rinse mouth with clean water if fragments are swallowed, do not try to induce vomiting, seek medical assessment if discomfort or symptoms worsen
Suitable Extinguishing Media: Water spray, foam, dry powder, or carbon dioxide will work in most scenarios; water fog can help cool surfaces
Specific Dangers: Burning acrylic releases carbon monoxide, carbon dioxide, and dense black smoke; fumes can be toxic if inhaled
Protective Equipment: Firefighters should wear full gear, including self-contained breathing apparatus due to toxic smoke
Special Precautions: Remove containers from fire zone if possible; cool exposed surfaces with water to prevent re-ignition; closed containers can rupture from heat
Personal Precautions: Avoid breathing dust or vapors, wear gloves and goggles during cleanup, prevent slips on spilled pellets or powder
Environmental Protection: Prevent dust, chips, or pellets from entering drains or waterways; sweep up and bag for proper waste handling
Cleanup Methods: Gather up fragments, use wet sweeping or HEPA vacuum (dry sweeping spreads dust), dispose of in accordance with local regulations
Safe Handling: Avoid generating dust; ground equipment to prevent static; avoid open flames or sparks; always cut or process in well-ventilated spaces
Storage Conditions: Store in cool, dry, well-ventilated area; keep away from direct sunlight, heat, and incompatible materials such as strong oxidizers or acids
Other Precautions: Protect from physical damage; avoid stacking heavy items on sheets; use caution when moving to prevent chipping or cracking
Engineering Controls: Local exhaust ventilation where dust or vapor may accumulate; enclosures for dust-producing operations
Respiratory Protection: Use dust masks if airborne dust forms; use appropriate respirators if vapors released by machining or heating
Eye Protection: Safety glasses or goggles during cutting, grinding, or cleanup
Hand Protection: Protective gloves if handling sharp edges or cleaning up broken pieces
Other Protective Gear: Long sleeves can reduce skin contact; keep washing stations and emergency eyewash nearby
Physical State: Solid; rigid and lightweight
Color: Generally clear, but also available in colored or tinted form
Melting Point: Does not melt; softens and decomposes at high temperatures above 160°C
Solubility: Insoluble in water, dissolves in chlorinated hydrocarbons and some organic solvents
Density: Ranges from 1.18 to 1.20 g/cm³
Odor: Largely odorless in normal conditions
Other Properties: High optical clarity, good weather resistance, fairly brittle under impact unless modified
Chemical Stability: Stable at room temperature in normal storage conditions
Reactivity: Reacts with strong oxidizers and concentrated acids
Hazardous Decomposition Products: Heating releases fumes including carbon monoxide, carbon dioxide, and possibly methyl methacrylate monomer
Conditions to Avoid: Open flames, sparks, heat above 160°C, strong ultraviolet light
Acute Health Effects: Dust or vapors may irritate eyes, skin, nose, or lungs; sensitive people may have allergic skin reactions
Chronic Health Effects: No clear link to chronic illness for users, but long-term exposure to high levels of dust or unreacted monomer during manufacturing can pose risk
Carcinogenicity: Not classified as a carcinogen
Sensitization: Some may develop sensitivity to monomer or additives but cases remain rare in end-use
Other Effects: Swallowed fragments can pose a minor choking hazard
Persistence and Degradability: Resists breaking down in the environment, stays in soil and water for long periods
Bioaccumulation: Not known to accumulate in living organisms
Aquatic Toxicity: Not acutely toxic to freshwater or marine life, but fragments and microplastics can harm ecosystems if ingested
Other Concerns: Tends to pollute if not recycled; waste can clog waterways and harm animals that ingest or get tangled in fragments
Disposal Methods: Recycling brings the most benefit, but landfill disposal is still common if recycling infrastructure is lacking
Incineration: Only in facilities equipped with proper emission controls to avoid toxic fumes
Hazardous Waste: Not usually treated as hazardous under most regulations, but disposal must comply with local rules to limit environmental impact
Other Tips: Separate from general trash if possible, and keep away from composting or open burning
Transport Classification: Typically not classified as dangerous for land, sea, or air transport
Precautions: Use sturdy containers to avoid breakage, shield from excessive heat during transit, keep away from flammable cargo
Labeling: Standard labeling for plastics suffices; mark as “plastics” or “acrylic” where relevant
Global Chemical Inventories: Registered on main lists in North America, Europe, and parts of Asia
Occupational Safety: Workplaces must set airborne exposure limits for dust and monomer as established by regulators; personal protective equipment standards apply
Environmental Protections: Rules exist to prevent dumping into water or uncontrolled burning, recycling incentives appear in some regions
Other Regulations: Product labeling laws apply, and regulations keep evolving as science sheds more light on microplastic impacts
