What is terephthalic acid?
Terephthalic acid with the formula C6H4 (CO2H) 2 is a solid and colorless organic compound that belongs to the minerals and belongs to the group of acids. The appearance of this material is powder or white crystals. The most important commercial process for the production of this material is the oxidation reaction of paraxylene by air in the liquid phase at high temperature and pressure.
Terephthalic acid is used as a raw material for the production of polyester. Several million kilograms of this substance are produced annually. Terephthalic acid is one of the most important intermediate chemicals in the petrochemical industry, which is used as a raw material for the production of polyethylene terephthalate.
Pure this material is used to make PET engineering plastics, soft drink bottle plastics and polyester textile fibers.
this material dust causes irritation and irritation of the eyes.
Terephthalic acid causes skin irritation when in contact with skin.
Swallowing and eating this material causes inflammation and irritation of the gastrointestinal tract.
Inhalation of this material dust in large quantities causes respiratory irritation.
If the material is overheated, it will catch fire.
The minimum explosive concentration of this substance is 50 grams per cubic meter.
According to research, this material has no significant environmental effects.