Terephthalic acid(PTA)
CAS No:100-21-0Molecular StructureSamples
EINECS No:202-830-0100-21-0 PIC-2.jpg100-21-0 PIC-3.jpg
Molecular Formula:C8H6O4
Molecular Weight:166.131
Density:1.58 g/ml at 25 °C
Physical Properties: Terephthalic acid is a white crystalline powder at room temperature, slightly soluble in water, insoluble in carbon tetrachloride, ether, acetic acid, and chloroform, slightly soluble in ethanol, and soluble in alkaline solution.
Applications: Terephthalic acid is mainly used in the production of polyethylene terephthalate, and another important application is the production of dioctyl terephthalate plasticizers and polyester plasticizers.