Title: Mercurous Sulfate
CAS Registry Number: 7783-36-0
Molecular Formula: Hg2O4S
Molecular Weight: 497.24
Percent Composition: Hg 80.68%, O 12.87%, S 6.45%
Line Formula: Hg2SO4
Properties: White to slightly yellow cryst powder. Becomes gray on exposure to light with production of mercury and mercuric sulfate. d 7.56. Slightly sol in water (0.06 g/100g at 25°); sol in dil HNO3.
Density: d 7.56
Use: For making electric batteries; with zinc sulfate in the standard Clark cell and with cadmium sulfate in the standard Weston cell.