Question

structure of terephthalic acid

Answer 1

Terephthalic acid is an organic compound with formula C6H4(CO2H)2. This white solid is a commodity chemical, used principally as a precursor to the polyester PET, used to make clothing and plastic bottles.
Structure and properties: Refractive index (n), Dielectric constant (εr), etc
Related carboxylic acids: Phthalic acid; Isophthalic acid; Benzoic acid; p-Toluic acid
Chemical formula: C8H6O4
Solubility in water: 0.0015 g/100 mL at 20 °C...

Answer 2

Phthalic acid is an aromatic dicarboxylic acid, with formulaC6H4(CO2H)2. It is an isomer of isophthalic acid and terephthalic acid. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale.