What is Acrylic Acid (CAS:79-10-7)?

What is Acrylic Acid?

Acrylic acid (IUPAC: prop-2-enoic acid) is an organic compound with the formula CH 2 =CHCOOH. It is the simplest unsaturated carboxylic acid.

What are the properties of acrylic acid (CAS:79-10-7)?

Physical properties

• Acrylic acid is a corrosive, colourless liquid with an acrid odour.
• Boiling Point: 141.0°C
• Melting Point: 14.0°C
• Flash Point: 68°C (open cup)
• Vapour Density: 2.45
• Density: 1.0511 at 20°C
• Vapour Pressure: 3.1 mm Hg at 20°C

Chemical properties

• It is miscible with water, alcohol, ether, benzene, chloroform, and acetone. It polymerizes readily in the presence of oxygen.
• Exothermic polymerization at room temperature may cause acrylic acid to become explosive if confined. It is sensitive to heat and sunlight.
• It is normally supplied as the inhibited monomer (inhibited with 200 ppm hydroquinone monomethyl ether), but because of its relatively high freezing point, it often partly solidifies, and the solid phase (and the vapor) will then be free of the inhibitor, which remains in the liquid phase.
• Even the uninhibited form may be stored safely below the melting point, but such material will polymerize exothermically at ambient temperature and may accelerate to a violent or explosive state if confined.
• Acrylic acid is incompatible with strong oxidizers, strong bases, strong alkalies, and pure nitrogen. It may polymerize (sometimes explosively) on contact with amines, ammonia, oleum and chlorosulfonic acid, iron salts, and peroxides. It may corrode iron and steel.

What is acrylic acid used for?

• As an important chemical raw material, acrylic acid is mainly used in the production of acrylic resins, methyl acrylate, ethyl acrylate, butyl acrylate, and hydroxyethyl acrylate.
• In the pesticide industry, acrylic acid functions as a chelating agent and surfactant, helping to enhance the insecticidal performance of pesticide formulations.
• In the coating industry, acrylic acid is a key component that improves adhesion, enhances durability, and increases corrosion resistance of coatings.
• Acrylic acid is also used in the manufacture of synthetic materials. When polymerized, it forms materials known as acrylic resins, which are widely applied in plastics, rubber, and cellulose-based products.

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