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Silver Carbonate - Ag2CO3

What is Silver carbonate?

Silver carbonate is an unstable chemical compound with the chemical formula Ag2CO3. Silver carbonate on celite is also called as Fetizon’s reagent. It is obtained by precipitation of solution of silver nitrate by an alkaline carbonate is white in colour and becomes yellow when the soluble salts are washed. It is sensitive to light, when it is exposed to light it changes it colour.

IUPAC name – Disilver carbonate


Silver carbonate


6.08 g/cm³

Molecular Weight/ Molar Mass

275.7453 g/mol

Boiling Point

553.2 °C

Melting Point

218 °C

Chemical Formula


Silver Carbonate Structure – Ag2CO3

Silver carbonate

Physical Properties of Silver Carbonate – Ag2CO3




Pale yellow crystals

Hydrogen Bond Acceptor



Very little solubility in water

Chemical Properties of Silver Carbonate – Ag2CO3

  • Like other carbonates silver carbonate undergo decomposition reaction forming elemental silver, carbon dioxide and oxygen.
  • Ag2CO3 → Ag2O + CO2

    2Ag2O → 4 Ag + O2

  • Nitric acid dissolves silver carbonate forming silver nitrate, water and carbon dioxide.
  • Ag2CO3 + 2(HNO3) → 2(AgNO3) + H2O + CO2

Uses of Silver Carbonate – Ag2CO3

  • Ag2CO3 supported on celite is known as Fetizon’s reagent (silver carbonate on celite). used for the oxidation of primary and secondary alcohols to give aldehydes and ketones, respectively
  • Used as a reagent in organic synthesis reaction such asw Koenigs-Knorr reaction.
  • Used as a base in Wittig reaction


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