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Anhydrides

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Anhydrides

PHTHALIC ANHYDRIDE / ANHYDRIDE OF PHTHALIC ACID (C₈H₄O₃)

An organic chemical compound based on orthoxylene. It is produced as a result of orthoxylene oxidation. In contact with water, phthalic acid may be formed. It occurs as a colorless clear liquid or as a colorless crystalline solid (flakes).
Application:
- for the production of polyester resins - for the production of alkyd feeds - to surface coatings - for the production of plasticizers and dyes - in the paint and varnish industry and in polyester polyols - as fuel or an additive to fuels.

Anhydrides

MALEIC ANHYDRIDE/ MALEIC ACID ANHYDRIDE (C4H2O3)

It is an anhydride of maleic acid (cis-butenedioic acid). It is produced by the oxidation of benzene or hydrocarbon. The substance soluble in water forms maleic acid. It is a colorless or white solid with a sharp smell.
Application:
- for the production of unsaturated polyester resins for the production of plasticizers For the production of adhesives, paints, varnishes and lubricants - for the production of surface-active agents

Anhydrides

ADIPIC ACID (C6H10O4)

It is a colorless and crystalline solid (powder). It is produced by oxidizing cyclohexanol using a catalyst. Adipic acid is not soluble in water; it dissolves in alcohols, ethers, and acetone. It is also a flammable substance. Application:
- as a monomer for the production of polyamides - for the production of textile fibers - for the production of nylon - for the production of foams - for the production of adhesives

Anhydrides

AGS ACID (HOOC(CH2)nCOOH (n=2,3,4))

is a mixture (purified) of dicarboxylic acids: adipic acid, glutaric acid, and succinic acid. It is produced as a by-product during production.

Application:
- for the production of polyester polyols
- for the production of plasticizers
- for the production of polyester resins
- for bleaching textiles
- for processing leather