Phthalic acid CAS No.:88-99-3

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

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Specifications

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

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Applications

Polymer Industry:Production of polyester resins and alkyd resinsRaw 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

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Packaging & Shipping

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

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Storage & Handling

Storage Conditions:Store in a cool, dry, ventilated areaTemperature: <30°CProtection Measures:Moisture-sensitive – keep containers tightly sealedIncompatibilities: Strong oxidizers, bases

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Safety & Compliance

GHS Hazard Statements:H315: Causes skin irritationH319: Causes serious eye irritationH335: May cause respiratory irritationRecommended PPE:Nitrile gloves, safety goggles, dust mask

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