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See Chinese contents: GB/T 32685-2016 GB/T 32685-2016: Purified terephthalic acid (PTA) for industrial use
This Standard specifies the technical requirements, test methods, inspection rules, packaging, marking, transportation, storage and safety requirements for purified terephthalic acid (PTA) for industrial use. This Standard applies to purified terephthalic acid (PTA) for industrial use, which is obtained from petroleum p-xylene through oxidation and refining. This product is mainly used as a raw material for the production of polyester chips, long and short polyester fibers and chemical products. Molecular formula: C8H6O4 Structural formula: Relative molecular mass: 166.13 (according to the international relative atomic mass in 2011)
