Dyeing and Pigments

Chemical Name: Phthalic Acid
Synonyms: 1,2-Benzenedicarboxylic Acid
CAS No.: 88-99-3
Molecular Formula: C₈H₆O₄
Molecular Weight: 166.13 g/mol
Assay: ≥99.0%
Appearance: White crystalline powder

---

Specifications

Parameter	Specification
Purity (GC/HPLC)	≥99.0%
Melting Point	210-211°C (decomposes)
Water Content	≤0.5%
Ash Content	≤0.1%

---

Applications

• Polymer Industry:
  • Production of polyester resins and alkyd resins
  • Raw material for polyester fibers (e.g., PET)
• Chemical Intermediates:
  • Synthesis of plasticizers (e.g., DMP, DEP)
  • Manufacturing of dyes (e.g., phthalein dyes)
• Pharmaceuticals:
  • Precursor for drug formulations

---

Packaging & Shipping

• Standard Packaging:
  • 1 kg/bag (aluminum foil with desiccant)
  • 25 kg/bag (woven bag with PE liner)
• Custom Options:
  • Bulk packaging available

---

Storage & Handling

• Storage Conditions:
  • Store in a cool, dry, ventilated area
  • Temperature: <30°C
• Protection Measures:
  • Moisture-sensitive – keep containers tightly sealed
  • Incompatibilities: Strong oxidizers, bases

---

Safety & Compliance

• GHS Hazard Statements:
  • H315: Causes skin irritation
  • H319: Causes serious eye irritation
  • H335: May cause respiratory irritation
• Recommended PPE:
  • Nitrile gloves, safety goggles, dust mask

Disclaimer:

The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.

If you're ready to take the next step, Leave your message below and we’ll reply soon. 20+ years of chemical manufacturing & export experience, a partner you can trust.