Purified Terepthalic Acid (PTA)

PTA (Purified Terephthalic Acid) is a white crystalline powder with a slight acidic odor. It is mildly irritating to the eyes, skin and respiratory tract.

Appearance Free from Contamination
Odour Odorless
Solubility in water Insoluble
Relative Density (H2O=1) @ 20°C 1.51
Melting Point °C 300°C (Sublimates)
Relative Vapour Density (Air=1) NA
Flash point °C 260°C
Auto ignition °C 496°C
Vapour pressure (hPa) @ 20 °C 0 – 134633
Acid Value 675±2
Ash <8
Metals:Mo Cr Ni Co Mn Ti <5
Iron <1
Pharmaceutical Industry as a raw material for certain drugs
Polyester films audio & video recording tapes, data storage tapes, photographic films
Unsaturated polyester resins for fiberglass reinforced plastics Waterborne polyester resins

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