Methacrylic Acid (MAA)
Methacrylic acid (MAA) is an important chemical intermediate, containing both a carbon–carbon double bond and a carboxyl functional group, which allows it to undergo polymerization and esterification reactions.
Technical Data
| Chemical Structure |  |
| Molecular Formula | C4H6O2 |
| Molecular Weight | 86.09 |
| CAS No. | 79-41-4 |
| Appearance | Colorless Transparent Liquid |
| Concentration(GC) | ≥99.0% |
| Acid Value | ≥99.0% |
| Inhibitor-MEHQ | 225-275PPM |
| Water Content | ≤0.3% |
| Hue | ＜20 |
| Melting Point/Freezing Point | 16℃ |
| Flash Point(Closed Cup) | 68℃ |
| Vapor Pressure, 25℃ | 130Pa |
| Relative Density(g/cm³), 20℃ | 1.015g/cm³ |
| n-Octane/Water Partiton Coefficient | 0.93 |
| Particle characteristics | Not applicable |
| Initial Boiling Point and Boiling Range | 159℃-163℃ |
| Upper/lower Explosive Limits | Upper limit:8.8;Lower limit:1.6 |
| Vapor Density | 2.97g/ml |
| Solubility | Miscible with Water |
| Auto-Ignition Temperature | 400℃ |
Application
- It can be used in the production of methyl methacrylate, coatings, synthetic rubber, adhesives, textile treatment agents, resins, polymer additives, and functional polymer materials.