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Oxalic Acid

Oxalic Acid full-image
Oxalic Acid full-image
Oxalic Acid full-image
Oxalic Acid full-image

Oxalic Acid

Serial: chmbuyic19

Oxalic acid is rubbed onto completed marble sculptures to seal the surface and introduce a shine. Oxalic acid is also used to clean iron and manganese deposits from quartz crystals. Oxalic acid is used as a bleach for wood, removing black stains caused by dissolved iron that binds to the wood during water penetration.

What is Oxalic acid?

Oxalic acid is a dicarboxylic acid with a chemical formula C2H2O4. It is also known as Ethanedioic acid or Oxiric acid.

This organic compound is found in many vegetables and plants. It is the simplest dicarboxylic acid with condensed formula HOOC-COOH and has an acidic strength greater than acetic acid. Excess consumption of oxalic acid can be dangerous. It is produced by the oxidation of carbohydrates. It can also be prepared in the laboratory by the oxidation of sucrose in the presence of nitric acid and a catalyst like vanadium pentoxide.

Oxalic acid has a structure with two polymorphs and it appears as a white crystalline solid which becomes a colourless solution when dissolved in water. It is a reducing agent and is used as a chelating agent with oxalate as its conjugate base.

Oxalic acid Structure – C2H2O4

Oxalic acid Structure





Feature:

C2H2O4 Uses (Oxalic acid)

  • It is used in the dyeing process as a mordant
  • It is used in removing rust
  • In lanthanide chemistry, it is used as an important reagent
  • It is applied on marble sculptures to make it shine
  • It is used in the manufacture of dye
  • It is used in bleaches
  • It is used in removing food and ink stains
  • It is used in developing photographic film
  • It is used in wastewater treatment to remove the calcium deposit.

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