Methyl methacrylate CAS#80-62-6
CAS Number: 80-62-6
Chemical Name: Methyl methacrylate
Common Names & Synonyms: MMA, 2-Methylacrylic acid methyl ester, Methyl 2-methylpropenoate
Molecular Formula: C₅H₈O₂
Molecular Weight: 100.12
Appearance: Colorless transparent volatile liquid with a characteristic pungent odor
HS Code: 29161410
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Methyl methacrylate (MMA) is a crucial organic chemical monomer. Its most important downstream product is Polymethyl Methacrylate (PMMA), commonly known as plexiglass or acrylic glass, a high-performance amorphous transparent polymer widely used as an ideal alternative to traditional glass.
PMMA possesses outstanding comprehensive properties: high light transmittance, excellent impact resistance, low weight, cost-effectiveness, non-toxicity and environmental friendliness. Thanks to its uniform amorphous molecular structure, light travels through the material at a steady speed without scattering or optical interference, which endows PMMA with superior optical performance compared with many other polymer materials.
Physical & Chemical Properties
Relative Density: 0.943 – 0.947 (20 °C)
Melting Point: -48 °C
Boiling Point: 100 – 101 °C
Refractive Index: 1.413 – 1.415 (20 °C)
Flash Point: 10 °C (Closed cup)
Vapor Pressure: 37 mmHg at 20 °C
Solubility: Slightly soluble in water; miscible with ethanol, ether, ketones, aromatic hydrocarbons and most common organic solvents
Chemical Stability: Stable under normal ambient conditions. Easy to undergo polymerization when exposed to heat, light, initiators or air; incompatible with strong oxidants, strong acids and strong bases. Proper polymerization inhibitor is added for storage and transportation.
Parameters
| Item | Value |
| Melting point | -48 °C (lit.) |
| Boiling point | 100 °C (lit.) |
| density | 0.936 g/mL at 25 °C (lit.) |
| vapor density | 3.5 (vs air) |
| vapor pressure | 29 mm Hg (20 °C) |
| refractive index | n20/D 1.414(lit.) |
| FEMA | 4002 | METHYL 2-METHYL-2-PROPENOATE |
| Fp | 50 °F |
| storage temp. | 2-8°C |
| solubility | 15g/l |
| form | Crystalline Powder or Crystals |
| color | White to pale yellow |
| Odor | at 0.10 % in dipropylene glycol. acrylic aromatic fruity |
| Odor Type | acrylate |
| biological source | synthetic |
| Odor Threshold | 0.21ppm |
| explosive limit | 2.1-12.5%(V) |
| Water Solubility | 15.9 g/L (20 ºC) |
| Merck | 14,5941 |
| JECFA Number | 1834 |
| BRN | 605459 |
| Henry’s Law Constant | 2.46 x 10<sup>-4</sup> atm·m<sup>3</sup> /mol at 20 °C (approximate – calculated from water solubility and vapor pressure) |
| Exposure limits | NIOSH REL: TWA 100 ppm (410 mg/m<sup>3</sup> ), IDLH 1,000 ppm; OSHA PEL: TWA 100 ppm; ACGIH TLV: TWA 100 ppm with intended TWA and STEL values of 50 and 100 ppm, respectively. |
| Dielectric constant | 2.9（20℃） |
| Stability | Volatile |
| InChIKey | VVQNEPGJFQJSBK-UHFFFAOYSA-N |
| LogP | 1.38 at 20℃ |
| CAS DataBase Reference | 80-62-6(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Propenoic acid, 2-methyl-, methyl ester(80-62-6) |
| IARC | 3 (Vol. Sup 7, 60) 1994 |
| EPA Substance Registry System | Methyl methacrylate (80-62-6) |
Safety Information
| Item | Value |
| Hazard Codes | F,Xi,T |
| Risk Statements | 11-37/38-43-39/23/24/25-23/24/25 |
| Safety Statements | 24-37-46-45-36/37-16-7 |
| RIDADR | UN 1247 3/PG 2 |
| OEB | A |
| OEL | TWA: 100 ppm (410 mg/m3) |
| WGK Germany | 1 |
| RTECS | OZ5075000 |
| Autoignition Temperature | 815 °F |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29161410 |
| Hazardous Substances Data | 80-62-6(Hazardous Substances Data) |
Product Applications
As the core raw monomer for synthesizing polymethyl methacrylate (PMMA / plexiglass), which is widely used for optical components, transparent plates, decorative panels and glass replacement materials.
- Applied in the production of various synthetic plastics, industrial coatings and surface coatings.
- Used as a key raw material for manufacturing adhesives, printing inks, synthetic resins and polymer modifiers.
- Widely adopted in fields including artificial marble, sanitary ware, automotive parts, electronic accessories, medical devices and architectural decorative materials.
Logistics & Delivery
•Fast delivery time
•Inventory orders: 2–3 working days
•New production orders: 7–10 working days
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