1. This colourless solid is an isomer of phthalic acid and terephthalic acid . 2. It is an isomer of isophthalic acid and terephthalic acid . 3. It is the diester formed from terephthalic acid and methanol. 4. Terephthalic acid was the main raw ingredient in polyester fiber.5. This compound is formed in 0.5 % yield in the production terephthalic acid from p-xylene. 6. By 2006, global purified terephthalic acid ( PTA ) demand had exceeded 30 million tonnes. 7. The monomers which could be used to create this polymer are ethylene glycol and terephthalic acid : 8. The resultant crude terephthalic acid can be purified by recrystallization to yield material suitable for re-polymerization: 9. The venture will produce paraxylene, a raw material of purified terephthalic acid ( PTA ) used in polyester. 10. "' Terephthalic acid "'( a portmanteau of the turpentine-producing tree PET, used to make clothing and plastic bottles.
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