Hypophosphoric Acid Formula

Hypophosphoric acid is a mineral acid with phosphorous in an oxidation state of +4. It has a chemical formula H4O2P6. In the solid state, it exists as a dihydrate, H4O2P6.2H20. It can be manufactured by reacting red phosphorous with sodium chlorite at room temperature. In this short piece of article, let us discuss the hypophosphoric acid formula along with its chemical structure, properties and uses.

Hypophosphoric Acid Properties

Properties of Hypophosphoric Acid


Hypophosphoric Acid

Other Names

Diphosphoric Acid


White Solid

Chemical Formula


Melting Point

54 °C

Molar Mass

161.98 g/mol

Solubility in Water


Hypophosphoric Acid Structure

Hypophosphoric Acid Formula

Hypophosphoric Acid Uses

  • Used as a bleaching agent
  • Used as a reducing agent
  • Used as a wetting agent
  • Used as a stimulant in pharmaceutical agents

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