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Phosphorous Acid (Noun)

Meaning

A clear or yellow monobasic acid (H3PO2).

Classification

Nouns denoting substances.

Examples

  • Phosphorous acid is a reducing agent, especially for the nitro and azo groups, and also serves as a mild reducing agent in the synthesis of some heterocyclic compounds.
  • In aqueous solution, phosphorous acid acts as a tribasic acid and ionizes into the phosphate ion (PO43-) via three successive steps, but in anhydrous conditions it exists as the dimer (HPO2)2.
  • The hydrogen atom of phosphorous acid's phosphonyl group (-P(OH)2) can easily be substituted with organo-functional groups such as -aryl or -alkyl to give organic phosphines.
  • A dilute solution of phosphorous acid (typically around 1.0 mol dm-3) can also serve as an acidifying agent to acidify another aqueous solution of chemicals without much side reactions or influence from another group, or reagents of secondary and unanticipated consequences.
  • Organic synthesis utilizing phosphorous acid have generated special attention from research communities working in catalytic syntheses or advanced and intricate carbon chemistry that involved sensitive heterocycles with useful side-chain components for synthetic medicine production.

Synonyms

  • Hypophosphorous Acid
  • Orthophosphorous Acid

Hypernyms

  • Oxyacid
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