Terephthalic acid| PTA

Terephthalic acid, PTA

Terephthalic acid, PTA with formula C6H4 (CO2H) 2 is a solid and colorless organic compound used as the starting material for the production of polyester. Millions of kilograms of Terephthalic acid, PTA are produced annually. Terephthalic acid, PTA is one of the most important intermediates in the petrochemical industry, which is used as the raw material for the production of polyethylene terephthalate Terephthalic acid, PTA is a mineral that belongs to the acid group. The most important commercial process for the production of terephthalic acid is the para xylene oxidation reaction by air in a liquid phase at high temperature and high pressures.

Physical and chemical properties of Terephthalic acid, PTA

Molecular formula:  C6H4 (CO2H) 2, C8H6O4

Molar mass 166.13 g / mol
Appearance white crystals or powder
Density 1.522 g / cm3
Melting point 300C in a sealed tube (sublimes at 402C (675 K) in air)
Boiling point sublimes
Solubility in water 0.0017 g / 100 mL at 25 ° C
Solubility polar organic solvents aqueous base
Acidity (pKa) pKa1 = 3.54 at 25C

Other names: Para benzene dicarboxylic acid, 1 and 4 benzene dicarboxylic acid, terephthalic acid

Safety Information Terephthalic acid, PTA

Causes burning and skin irritation. In the event of ingestion, it causes burning and inflammation of the stomach. In the event of a warm fire. No effect on the environment.

Usage Polyethylene Terephthalate, PTA

Production of textile fibers, photography films, bottles of beverages

Polyethylene Terephthalate, PTA Packing:

You can buy Polyethylene Terephthalate, PTA in plastic bag 25 Kg or 50 Kg 20 MT/20 FCL, or 1 ton jumbo bag

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