Title: Mercuric Sulfate

CAS Registry Number: 7783-35-9

Additional Names: Mercury bisulfate

Molecular Formula: HgO4S

Molecular Weight: 296.65

Percent Composition: Hg 67.62%, O 21.57%, S 10.81%

Line Formula: HgSO4

Properties: White, odorless granules or cryst powder. Poisonous! d 6.47. Dec by water into a yellow insol, basic sulfate and free H2SO4; sol in HCl, hot dil H2SO4, concd soln of NaCl. Protect from light.

Use: Electrolyte for primary batteries; with NaCl for extracting gold and silver from roasted pyrites; as a reagent for wine coloring, barbital, and cystine.