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Phthalic Acid

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Phthalic Acid
Chemical Product

Phthalic Acid

Molecular FormulaC8H6O4 CAS88-99-3 Molecular Weight166.13 g/mol
SynonymsBenzene-1,2-dicarboxylic acid, o-Phthalic acid
Safety & Hazards (GHS) Danger
Irritant Irritant Health hazard Health hazard

⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).

Phthalic Acid is an aromatic dicarboxylic acid supplied as a white crystalline powder. It is used as a chemical intermediate for dyes, resins and esters.
- Chemical Intermediate: Production of phthalate esters and dyes. - Resins: Raw material for alkyd and polyester resins. - Pharmaceuticals: Intermediate in drug synthesis. - Laboratory: Reagent and buffer component.
AppearanceColorless crystals
Molecular FormulaC8H6O4
Molecular Weight166.13 g/mol
Melting Point230 °C (decomposes)
Density1.593 g/cm³ at 15 °C
SolubilityIn water, 6.97 g/L at 25 °C
Flash Point168 °C (closed cup)
IUPAC Namephthalic acid
Molecular FormulaC8H6O4
Molecular Weight166.13 g/mol
SMILESC1=CC=C(C(=C1)C(=O)O)C(=O)O
InChIKeyXNGIFLGASWRNHJ-UHFFFAOYSA-N
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation
  • H360D May damage the unborn child

⚠️ For information only; not a substitute for the official SDS.

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