Isoftaalihappoa

Isoftaalihappoa, also known as isophthalic acid, is an organic compound with the formula C6H4(CO2H)2. It is one of three isomers of benzenedicarboxylic acid, the other two being phthalic acid and terephthalic acid. Isoftaalihappoa is a white crystalline solid. It is a dicarboxylic acid, meaning it contains two carboxyl functional groups.

Industrially, isoftaalihappoa is primarily produced by the oxidation of meta-xylene. It is a key monomer in the production of unsaturated polyester resins, alkyd resins, and polyethylene terephthalate (PET) resins. These resins find widespread use in the manufacturing of coatings, adhesives, and plastics. Isoftaalihappoa's symmetrical structure and meta-substitution pattern contribute to the desirable properties it imparts to polymers, such as improved heat resistance and chemical stability.

In addition to its polymer applications, isoftaalihappoa can be used as a precursor for certain dyes and pharmaceuticals. Its solubility characteristics vary depending on the solvent, being sparingly soluble in water but more soluble in organic solvents like ethanol and acetic acid. The compound's chemical reactivity is typical of aromatic carboxylic acids, undergoing esterification and other reactions characteristic of these functional groups.