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Acrylic Feb 28, 2017

Is an important raw material for organic synthesis and synthetic resin of acrylic acid monomer, is the polymerization of vinyl monomers of very fast. Is the simplest unsaturated carboxylic acid, formed by a vinyl and a carboxyl group. Pure acrylic acid is a colorless liquid, with a characteristic pungent smell. It is miscible with water, alcohols, ethers, and chloroform, it is prepared from propylene received from the refinery. Most used for manufacture of methyl acrylate, ethyl acetate, butyl acetate, ethyl hydroxyethyl acrylate. Acrylic acid and acrylate polymers and copolymers, polymer used in synthetic resins, synthetic fibers, high water-absorbent resin, building materials, paint and other industrial sectors. Acrylic TLV-TWA is the professional standard 6 mg/m³; TWA 30 mg/m³. Acrylic toxic substances data is 79-10-7 (Hazardous Substances Data).

In 1843, the first acrylate Acrolein oxidation. In 1931, the Roma-Haas company successfully developed the cyanide hydrolysis technology of acrylic acid with ethanol, is the industry's only method of production for a long time. In 1939, the Germans W.J. Reppe carbonylation of acetylene method invented acrylic 1954 established a plant in the United States. Meanwhile successfully developed the hydrolysis of acrylonitrile to acrylic acid technology. Since 1969, Union Carbide built to propylene oxide after the rule of acrylic acid plant, countries have used this method to production. In recent years, propylene oxidation catalyst and process improvements for many, has become the main method of acrylic acid production.