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Product Profile
Methyl Methacrylate
CAS No.: 80-62-6
Synonyms / IUPAC Name: Methyl 2-methylprop-2-enoate; Methyl methacrylate monomer
Molecular Formula: C₅H₈O₂
Molecular Weight: ~100.12 g/mol
Appearance: Colorless, clear liquid with an acrid, fruity odor
Physicochemical Properties (Typical)
- Melting Point: Approximately –48 °C
- Boiling Point: Approximately 101 °C
- Density: ~0.94 g/cm³
- Solubility in Water: Low (≈ 15.9 g/L at 20 °C)
- Flash Point: Very low (around 2–4 °C)
- Other Notes: Highly volatile; vapors heavier than air; prone to polymerization under heat or contamination
Quality & Compliance Standards
- Typical Purity: ≥ 99% with polymerization inhibitor
- Appearance: Clear liquid, free of visible particulates or haze
- Key Specification Indicators:
- Monomer assay
- Moisture content
- Inhibitor level
- Acid value
- Non-volatile residues
- Storage Recommendation: Store sealed in inhibitor-stabilized containers in a cool (< 30 °C), dry, well-ventilated area away from heat, ignition sources and sunlight
Applications / Uses
- Primary monomer for PMMA and methacrylate-based polymers
- Used in coatings, adhesives, sealants and textile applications
- Key material in dental, orthopedic and specialty resin formulations
- Intermediate for producing higher methacrylate esters and functional materials
Safety & Handling
- Flammability: Extremely flammable liquid and vapor; forms explosive vapor–air mixtures
- Health Hazards:
- Inhalation: May cause respiratory irritation, dizziness or CNS effects
- Skin Contact: May cause irritation or sensitization with repeated exposure
- Eye Contact: Vapor or liquid can cause significant irritation
- Precautions:
- Use only with adequate ventilation or local exhaust
- Wear suitable protective gloves, goggles/face protection and clothing
- Eliminate all ignition sources
- Ground and bond containers during transfer
- Reactivity / Incompatibilities: Avoid strong oxidizers, peroxides, acids, bases; risk of exothermic polymerization if heated or contaminated
Packaging & Storage
- Packaging: Supplied in sealed, chemically-compatible containers (steel drums or IBCs)
- Storage Conditions: Store in cool (< 30 °C), dry, well-ventilated area away from sunlight, heat and ignition sources; keep containers tightly closed
- Shelf Life: Stable when properly stored; check for signs of polymerization (color change, viscosity increase, container swelling) before use after long storage