C Research on Mercury
2. Variety of Mercury

These are various mercury compounds.
Metallic mercury
The most familiar mercury used in thermometer. Inhalation of its vapor causes damage to lung, kidney and brain.
Mercuric oxide
Almost insoluble in water. Used as a topical antiseptic. Mercuric sulfide
Mercuric sulphide
Insoluble in water. Used as a red pigment in ancient times. Most mercury in natural environment exists as this form.
Mercuric chloride
Often used in toxicology research. Given to experimental animals by injection due to poor absorption from the gastric tube. Causes severe renal failure.
Methylmercuric chloride
Cause of Minamata Disease. On absorption, it is widely found tissues