Mercury(I) sulfate

Mercury(I) sulfate, also known as mercurous sulfate, is a chemical compound. Its chemical formula is Hg2SO4. It has mercury and sulfate ions in it. The mercury is in its +1 oxidation state.
Properties.
Mercury(I) sulfate is a whitish-yellow solid. It is not soluble in water. It does dissolve in dilute nitric acid.
Preparation.
It is made by dissolving a large amount of mercury in concentrated sulfuric acid. It can also be made by reacting mercury(I) nitrate with any sulfate or sulfuric acid.