Purified Terephthalic Acid (PTA): Polymer Grade for Polyester Chips & Fiber
Purified Terephthalic Acid (PTA): Polymer Grade for Polyester Chips & Fiber is the primary aromatic diacid monomer for continuous polyethylene terephthalate (PET) polycondensation. The polymer-grade designation is separated from crude terephthalic acid by strict limits on 4-carboxybenzaldehyde (4-CBA), p-toluic acid, ash, total metals, and colour. Typical polymer-grade PTA maintains 4-CBA...
