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Purified Terephthalic Acid

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  • Purified Terephthalic Acid
  • Purified Terephthalic Acid
  • Purified Terephthalic Acid
  • Purified Terephthalic Acid

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Purified Terephthalic Acid
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Product Parameters

Purified terephthalic acid (PTA) is a white crystalline powder produced from p-xylene (PX) through oxidation and refining. It is a core raw material in the polyester industry chain. It is mainly used in the production of polyester fibers, polyester bottle chips, polyester films, and other products.

ItemDescription
Product NamePurified Terephthalic Acid (PTA)
Chemical FormulaC₈H₆O₄
CAS No.100-21-0
Product FormWhite crystalline powder
Product GradePremium Grade: Purity ≥99.9%, for high-end polyester productsFirst Grade: Purity ≥99.5%, for conventional polyester productionQualified Grade: Purity ≥99.0%, for general industrial use
Key IndicatorsPurity: ≥99.9% (Premium Grade)Acid Value: 675–680 mg KOH/gMoisture: ≤0.2%Ash Content: ≤8 ppm4-CBA: ≤25 ppmColor (APHA): ≤10Iron Content: ≤2 ppmTotal Metal Content: ≤5 ppm
Product FeaturesUltra-high purity with low impurities; Good reactivity and stable polymerization; Stable acid value for consistent downstream processing; Pure color ensuring polyester transparency; Low metal content suitable for food-contact polyester; Uniform particle size with good fluidity for easy conveying and metering
Main ApplicationsPolyester Fiber: polyester filament, polyester staple fiber, industrial yarnPolyester Bottle Chip: water grade, carbonated grade, hot-fill grade chipsPolyester Film: packaging film, electrical film, optical filmEngineering Plastics: PBT, PET engineering plastics
Packaging MethodJumbo bag: 500–1000 kg/bag (moisture-proof liner)Bulk: tank truck for large factory direct supply
Storage ConditionsStore in cool, dry and ventilated warehouse to avoid caking; Keep away from fire and oxidants; Stacking height ≤5 layers
Transportation RequirementsRain-proof and moisture-proof to avoid package damage; Bulk transport with special clean and dry tank trucks
Quality StandardGB/T 32685-2016 Purified Terephthalic Acid (PTA) for industrial useSH/T 1612-2017 Purified Terephthalic Acid for industrial use
Testing ServiceCertificate of Analysis (COA) provided with shipment; Third-party reports (SGS, ITS, etc.) available on request
Minimum Order QuantityJumbo bag: 20 tons (1 container)Bulk: 30 tons (1 tank truck)Small trial order negotiable
Delivery TimeRegular products: 7–15 working days; Custom products: 15–25 working days
Payment TermsT/T, L/C at sight


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