What is Oxalic Acid

Oxalic acid is an organic compound found in many plants. These include leafy greens, vegetables, fruits, cocoa, nuts and seeds. In plants, it’s usually bound to minerals, forming oxalate. The terms “oxalic acid” and “oxalate” are used interchangeably in nutrition science. Its acid strength is much greater than that of acetic acid. Oxalic acid is a reducing agent and its conjugate base, is a chelating agent for metal cations.

  • Synonyms: Ethanedioic acid, Wood bleach
  • INCI: Oxalic Acid
  • Chemical Formula: C₂H₂O₄
  • CAS Number: 144-62-7

Product Specifications


Chemical Formula C₂H₂O₄
CAS Number 144-62-7
Molar Weight 90,03 g/mol
Specific Gravity 1.6 - 1.7
Melting Point 189 to 191 °C

Uses and Applications for Oxalic Acid


  • Cleaning

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