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Terephthalic Acid

C₈H₆O₄ · 18 atoms

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Terephthalic Acid

Elements

About

Terephthalic acid is a benzenedicarboxylic acid carrying carboxy groups at positions 1 and 4. One of three possible isomers of benzenedicarboxylic acid, the others being phthalic and isophthalic acids. It is a conjugate acid of a terephthalate(1-).

Properties

IUPAC nameterephthalic acid

CAS number100-21-0

Molar mass166.13 g/mol

Melting point427 °C

Boiling point300 °C

Density1.51 g/mL

GHS hazards

IrritantHealth hazard

Sources

Properties: PubChem CID 7489
3D structure: PubChem CID 7489 (3D conformer)
CAS number: PubChem CID 7489
Description: PubChem ← ChEBI
Melting point: PubChem ← Hazardous Substances Data Bank (HSDB)
Boiling point: PubChem ← CAMEO Chemicals
Density: PubChem ← ILO-WHO International Chemical Safety Cards (ICSCs)
Hazards: PubChem ← European Chemicals Agency (ECHA)

Data from PubChem (NIH/NLM). Some annotations originate with the upstream sources shown.