Silver sulfate
Silver sulfate is an ionic compound of silver used in silver plating and as a non-staining substitute to silver nitrate. This sulfate is stable under ordinary conditions of use and storage, though it darkens upon exposure to air or light. It is minimally soluble in water.Silver sulfate is prepared by adding sulfuric acid to a solution of silver nitrate:
The compound adopts the structure seen for anhydrous sodium sulfate.Silver(II) sulfate
The synthesis of silver sulfate with a divalent silver ion instead of a monovalent silver ion was first reported in 2010 by adding sulfuric acid to silver fluoride. It is a black solid that decomposes exothermally at 120 °C with evolution of oxygen and the formation of the pyrosulfate.
