METHACRYLIC ACID

Methacrylic Acid is an unsaturated carboxylic acid widely used as a key monomer and chemical intermediate in the production of polymers, resins, coatings, adhesives, and specialty chemicals.
Methacrylic Acid is essential in the manufacture of methacrylate esters, which are used to produce high-performance plastics with excellent clarity, weather resistance, and mechanical strength.
Methacrylic Acid is valued for its high reactivity, versatility in polymer chemistry, and ability to impart hardness, durability, and chemical resistance to finished materials.

CAS Number: 79-41-4
EC Number: 201-204-4
Molecular Formula: C₄H₆O₂
Molecular Weight: 86.09 g/mol

Synonyms: Methacrylic Acid, 2-Methylacrylic Acid, α-Methacrylic Acid, Methacrylic Acid, MAA, 2-Methyl-2-propenoic Acid, 2-Methylacrylic Acid, Propenoic Acid, 2-methyl-, α-Methylacrylic Acid, Alpha-Methylacrylic Acid, Methacrylate Acid, Methacrylic Acid Monomer, Methacrylic Acid Pure, Methacrylic Acid Anhydrous, Methacrylic Acid Stabilized, Methacrylic Acid Inhibited, Methacrylic Acid Industrial Grade, Methacrylic Acid Technical Grade, Methacrylic Acid Reagent Grade, Methacrylic Acid Analytical Grade, Methacrylic Acid High Purity, Methacrylic Acid Polymer Grade, Methacrylic Acid Chemical Intermediate, Methacrylic Acid Polymer Intermediate, Methacrylic Acid Resin Monomer, Methacrylic Acid Acrylic Resin Monomer, Methacrylic Acid Acrylic Monomer, Methacrylic Acid Co-Monomer, Methacrylic Acid Paint Monomer, Methacrylic Acid Coatings Monomer, Methacrylic Acid Ink Monomer, Methacrylic Acid Adhesive Monomer, Methacrylic Acid Sealant Monomer, Methacrylic Acid Polymer Feedstock, Methacrylic Acid Chemical Feedstock, Methacrylic Acid Synthetic Intermediate, Methacrylic Acid Fine Chemical, Methacrylic Acid Specialty Chemical, Methacrylic Acid Industrial Chemical, Methacrylic Acid Processing Chemical, Methacrylic Acid Crosslinking Monomer, Methacrylic Acid Crosslinker, Methacrylic Acid Functional Monomer, Methacrylic Acid Surface Modification Monomer, Methacrylic Acid Grafting Monomer, Methacrylic Acid Copolymer Monomer, Methacrylic Acid Ionizable Monomer, Methacrylic Acid Hydrophilic Monomer, Methacrylic Acid Carboxyl Monomer, Methacrylic Acid Free Radical Monomer, Methacrylic Acid Radical Polymerizable Monomer, Methacrylic Acid UV Polymerizable Monomer, Methacrylic Acid Heat Polymerizable Monomer, Methacrylic Acid Emulsion Polymer Monomer, Methacrylic Acid Solution Polymer Monomer, Methacrylic Acid Bulk Polymer Monomer, Methacrylic Acid Suspension Polymer Monomer

APPLICATIONS

Methacrylic Acid is used in the production of methacrylate esters.
Methacrylic Acid is a precursor for methyl methacrylate and other alkyl methacrylates.
Methacrylic Acid enables the manufacture of acrylic plastics and resins.

Methacrylic Acid is applied in coatings and surface finishes.
Methacrylic Acid improves hardness, adhesion, and chemical resistance.
Methacrylic Acid enhances durability of protective and decorative coatings.

Methacrylic Acid is used in adhesive formulations.
Methacrylic Acid contributes to strong bonding and fast curing.
Methacrylic Acid improves adhesion to metals, plastics, and composites.

Methacrylic Acid is employed in water treatment and ion-exchange resins.
Methacrylic Acid introduces functional carboxyl groups into polymers.
Methacrylic Acid enhances ion-binding and exchange capacity.

Methacrylic Acid is used in textile and leather finishing.
Methacrylic Acid-based polymers improve flexibility and abrasion resistance.
Methacrylic Acid enhances surface performance of treated materials.

Methacrylic Acid is utilized in biomedical and dental materials.
Methacrylic Acid contributes to the synthesis of biocompatible polymers.
Methacrylic Acid supports controlled mechanical and chemical properties.

Methacrylic Acid is used as a key monomer in polymer production.
Methacrylic Acid is used to produce polymethacrylic acid derivatives.

Methacrylic Acid is used in acrylic resin manufacturing.
Methacrylic Acid contributes to transparent and weather-resistant resins.

Methacrylic Acid is used in adhesives and sealants.
Methacrylic Acid improves adhesion to metals and plastics.

Methacrylic Acid is used in coatings and varnishes.
Methacrylic Acid enhances chemical resistance and durability in coatings.
Methacrylic Acid is used in UV-curable formulations.
Methacrylic Acid supports fast curing in radiation-crosslinked systems.

Methacrylic Acid is used in dental materials.
Methacrylic Acid contributes to dental bonding agents and fillings.

Methacrylic Acid is used in contact lens monomer formulations.
Methacrylic Acid improves hydrophilicity and oxygen permeability in lenses.

Methacrylic Acid is used in medical device polymers.
Methacrylic Acid helps tailor biocompatibility and surface properties.
Methacrylic Acid is used in superabsorbent polymer production.
Methacrylic Acid increases water absorption and retention capabilities.

Methacrylic Acid is used in pigment dispersions.
Methacrylic Acid enhances pigment compatibility in water-based systems.

Methacrylic Acid is used in textile binders.
Methacrylic Acid improves wash resistance and print durability.

Methacrylic Acid is used in leather finishing products.
Methacrylic Acid contributes to surface gloss and flexibility.

Methacrylic Acid is used in ion-exchange resin production.
Methacrylic Acid forms functionalized polymer matrices for separation processes.

Methacrylic Acid is used in electrolyte membranes.
Methacrylic Acid supports ionic transport in electrochemical applications.

Methacrylic Acid is used in oilfield chemical formulations.
Methacrylic Acid improves polymer rheology for drilling fluids.

Methacrylic Acid is used in construction chemicals.
Methacrylic Acid is incorporated in concrete admixes for durability.

Methacrylic Acid is used in pressure-sensitive adhesives.
Methacrylic Acid enhances tack and peel strength.

Methacrylic Acid is used in engineering plastics.
Methacrylic Acid helps modify mechanical performance parameters.

Methacrylic Acid is used in specialty copolymer synthesis.
Methacrylic Acid enables controlled copolymerization with acrylates and styrenics.

DESCRIPTION

Methacrylic Acid appears as a clear, colorless to slightly yellow liquid.
Methacrylic Acid has a sharp, pungent acidic odor.
Methacrylic Acid is an unsaturated monocarboxylic acid with a vinyl group.

Methacrylic Acid is miscible with water, alcohols, and many organic solvents.
Methacrylic Acid readily undergoes polymerization reactions.
Methacrylic Acid is commonly stabilized with inhibitors to prevent premature polymerization.

Methacrylic Acid exhibits high chemical reactivity due to its double bond.
Methacrylic Acid readily forms esters, salts, and polymers.
Methacrylic Acid is sensitive to heat, light, and free radicals.

Methacrylic Acid is stable under controlled storage conditions.
Methacrylic Acid requires careful handling due to corrosive and polymerization-prone nature.
Methacrylic Acid is widely produced at industrial scale with consistent quality.

Methacrylic Acid is an unsaturated carboxylic acid.
Methacrylic Acid contains a reactive vinyl group for polymerization.
Methacrylic Acid is typically found as a clear, colorless liquid.

Methacrylic Acid has a sharp, acrid odor.
Methacrylic Acid is miscible with water and many organic solvents.
Methacrylic Acid readily polymerizes under heat, light, or radical initiators.

Methacrylic Acid forms homopolymers and copolymers with a wide variety of monomers.
Methacrylic Acid imparts hardness, clarity, and weather resistance to polymers.
Methacrylic Acid is widely used in adhesives, coatings, plastics, and dental materials.

Methacrylic Acid may cause skin and eye irritation upon contact.
Methacrylic Acid requires inhibitors during storage to prevent unwanted polymerization.
Methacrylic Acid should be stored in cool, well-ventilated environments.

Methacrylic Acid must be kept away from strong oxidizing agents.
Methacrylic Acid is valued for its polymer chemistry versatility.
Methacrylic Acid plays a key role in the production of advanced performance materials.

PROPERTIES

Chemical Formula: C₄H₆O₂
Molecular Weight: 86.09 g/mol
Appearance: Clear, colorless to slightly yellow liquid
Odor: Sharp, pungent acidic odor
Density: ~1.015 g/cm³ at 20°C
Melting Point: ~15–16°C
Boiling Point: ~161–163°C
Solubility in Water: Completely miscible
Solubility in Alcohols: Completely miscible
pKa: ~4.66
Vapor Pressure: ~1.3 hPa at 20°C
Viscosity: Low
Flash Point: ~77°C (closed cup)
Refractive Index: ~1.431 at 20°C
Thermal Stability: Limited; polymerizes at elevated temperatures
Polymerization Tendency: High; requires inhibitors for storage
Chemical Reactivity: Highly reactive toward free radicals and nucleophiles
Corrosivity: Corrosive to metals and tissues
Storage Stability: Good when inhibited and protected from heat and light

FIRST AID

Inhalation:
Move to fresh air immediately.
Seek medical attention if respiratory irritation persists.

Skin Contact:
Remove contaminated clothing.
Wash skin thoroughly with soap and water.
Seek medical advice if burns or irritation develop.

Eye Contact:
Rinse immediately with plenty of water for at least 15 minutes.
Seek immediate medical attention.

Ingestion:
Rinse mouth with water.
Do not induce vomiting.
Seek immediate medical attention.

Note to Physicians:
Treat symptomatically; manage corrosive exposure.

HANDLING AND STORAGE

Handling:
Use protective gloves, goggles, and appropriate PPE.
Ensure adequate ventilation during handling and processing.

Avoidance:
Avoid heat, light, and sources of free radicals.
Avoid contact with oxidizing agents and strong bases.

Spill Procedures:
Contain spill and absorb with inert material.
Neutralize carefully and dispose according to local regulations.

Storage:
Store in tightly closed containers with polymerization inhibitors.
Keep in a cool, well-ventilated area away from sunlight.
Protect from heat, ignition sources, and contamination.