Nomenclature
CAS number: 7783-36-0
Hg
2O
4S; mol wt 497.24.
Hg 80.68%, O 12.87%, S 6.45%.
Hg
2SO
4.
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.Use
For making electric batteries; with zinc sulfate
in the standard Clark cell and with cadmium sulfate in the standard
Weston cell.