Description

Terephthalic acid (PTA)

Terephthalic acid is one of the dicarboxylic acids and, as a raw material for the production of polyethylene terephthalate (PET), is one of the most important intermediate products in the chemical industry. On an industrial scale, the compound is mainly obtained by oxidizing p-xylene using catalysts. In the long term, however, this process based on fossil raw materials is to be replaced by synthesis from renewable raw materials. Various laboratory approaches already exist for this purpose, which are to be further developed into industrially usable processes.

Terephthalic acid is primarily used as a starting material for the production of polymer plastics. The esterification with ethylene glycol to form polyethylene terephthalate (PET) plays the most important role in the production of plastic bottles and food packaging. The substance is also used in the production of tear-resistant polyamide fibers and thermally resistant polyesters such as polybutylene terephthalate. In smaller amounts, terephthalic acid is also used as an intermediate to obtain other industrially used compounds.

At PENPET you can order the required amount of terephthalic acid in an uncomplicated and sustainable way. We look forward to receiving your inquiry for an individual offer. The solid is delivered as a powder in big bags, sacks or loose in a silo truck.

CAS no. 100-21-0
EINECS no. 202-830-0
Molecular formula: C8H6O4

Synonyms: para-phthalic acid, p-phthalic acid, TPA, TPS, 1,4-benzenedicarboxylic acid, BDC, terephthalic acid

Areas of application: Starting material for the production of polyethylene terephthalate (PET), resistant polyamides and polyesters for thermally demanding applications