Silver sulfite can be prepared by dissolving silver nitrate with the stoichiometric quantity of sodium sulfite solution, yielding a precipitation of silver sulfite by the following reaction:
2 AgNO3 + Na2SO3 ⇌ Ag2SO3 + 2 NaNO3
After precipitation then filtering silver sulfite, washing it using well-boiled water, and drying it in vacuum.[3]
^Comey, Arthur Messinger; Hahn, Dorothy A. (February 1921). A Dictionary of Chemical Solubilities: Inorganic (2nd ed.). New York City: The MacMillan Company. p. 1046.