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Is Methyl Methacrylate Flammable? (MMA CAS 80-62-6)

Apr 29, 2026 Leave a message

Methyl methacrylate (MMA, CAS 80-62-6) is a chemical widely used in the production of acrylic plastics, coatings, and adhesives. MMA is highly flammable and must be handled in strict accordance with safety procedures in industrial and storage environments.

 

Is Methyl Methacrylate Flammable?

MMA is classified as a highly flammable liquid (GHS Category 2).

 

Methyl methacrylate (MMA)

Customs Code: 2916 1410001

Chemical Formula: C₅H₅O₂

UN Number: 1247

Hazard Classification: UN Class 3 (Flammable Liquid)

Appearance: Colorless, transparent liquid with a strong, pungent odor.

 

Key Flammability Data

Flash Point ~10°C
Boiling Point 100–101°C
Autoignition Temperature ~421°C
Explosive Limits (Air) ~2.1% – 12.5%
Vapor Density Heavier than air

 

Methyl methacrylate MMA CAS 80-62-6
Methyl methacrylate MMA supplier

Physical Properties of Methyl methacrylate

  • Density: 0.944 g/cm³ (20°C)
  • Melting Point: -48°C
  • Boiling Point: 100–101°C
  • Refractive Index: 1.412 (20°C)
  • Viscosity: 0.56 mPa · s (25°C)
  • Vapor Pressure: 3.73 kPa (20°C), 12.7 kPa (40°C)
  • Auto-ignition Temperature: 421°C
  • Water Solubility: Slightly soluble (1.6 g/L at 20°C), soluble in water, alcohols, ketones, esters, and other polar organic solvents
  • Surface Tension: 28.9 mN/m (25°C)

 

MMA Chemical Safe Handling and Storage

Storage

Store in a cool, well-ventilated place, away from heat, sparks, and direct sunlight. Use explosion-proof containers and equipment.

Handling

Ground and connect containers to prevent electrostatic discharge. Avoid vapor buildup. Use a suitable industrial ventilation system.

Personal Protection

Wear protective equipment. Avoid inhaling vapors.

 

Methyl methacrylate CAS 80-62-6 MMA supplier

 

about us

As a leading manufacturer and exporter of chemical solvent, TIANJIN GNEE BIOTECH CO., LTD. provides high-quality industrial chemicals. We supply to customers across the chemical, pharmaceutical, and materials industries, ensuring consistent quality, reliable logistics, and professional technical support.

Our chemical products hold international certifications (REACH, ISO, FMQS, HALAL) for global quality recognitio. We have warehouses in coreports such as Qingdao, Tianiin, and Shanghai, with a 15-day express delivery service.

 

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GNEE BIO Product Packaging

 

Packaging Type Net Weight
Steel Drum 250 kg
IBC Tank 1250 kg
ISO Tank Bulk shipment

 

MMA chemical

 

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