PTA series

Product Description
Purified Terephthalic Acid (PTA) is the primary raw material for polyester production, characterized by its white crystalline powder form. With high chemical purity and reactivity, it serves as the cornerstone for synthesizing polyethylene terephthalate (PET) across industries.

Key Specifications

• Appearance: Free-flowing white powder
• Purity: ≥99.9% (GC analysis)
• Molecular Formula: C₈H₆O₄
• CAS No.: 100-21-0
• Solubility:
  • Fully soluble in alkaline solutions
  • Slightly soluble in hot ethanol (≤0.1 g/100mL)
  • Minimal water solubility (0.003 g/100mL @ 25°C)
• Thermal Stability: Decomposes above 300°C

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Critical Safety & Handling
⚠️ GHS Hazard Statements

• Combustible Dust Hazard: Forms explosive mixtures with air (LEL: 60g/m³)
• Handling Precautions:
  • Ground equipment to prevent static ignition
  • Use explosion-proof ventilation in storage areas
  • Avoid dust dispersion during transfer
• Personal Protection: N95 masks, anti-static gloves, and protective eyewear required

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Industrial Applications

1. Polymer Industry

• Polyester Fiber Production: Primary feedstock for PET polymerization (80% global usage)
• PET Packaging: Bottle-grade resins for beverages, food containers, and pharmaceutical packaging
• Polyester Films: Biaxially oriented films for capacitors, insulation, and flexible electronics

2. Cross-Industry Utilization

• Textiles: High-tenacity yarns for automotive tires, conveyor belts, and industrial fabrics
• Engineering Plastics: PBT (Polybutylene Terephthalate) for electrical components and automotive parts
• Coating Resins: Alkyd resins for corrosion-resistant paints and powder coatings

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Performance Advantages

• Low Metal Impurities: ≤5ppm (Fe, Co, Mn) for optimal polymerization kinetics
• Acid Value: 675±2 mg KOH/g (ASTM D2016)
• APHA Color: ≤10 (Hazen scale, 5% DMF solution)
• Moisture Content: ≤0.3% (Karl Fischer titration)

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Packaging & Storage

• Standard Units: 25kg moisture-proof poly-lined bags
• Bulk Options: 1-ton super sacks or silo tanker deliveries
• Shelf Life: 24 months in dry, ventilated environments (<30°C, <60% RH)

Certifications:

• ISO 9001, REACH, FDA 21 CFR compliant
• Halal/Kosher certification available

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Economic Impact
As the second-most-produced organic chemical globally, PTA enables over 70% of synthetic fiber manufacturing and 90% of PET packaging solutions. Its applications directly support advancements in sustainable textiles, circular packaging systems, and lightweight automotive engineering.

Custom particle size distributions (10-200µm) and stabilized formulations available for specialized polymerization processes. Technical datasheets and SDS upon request.