Calomel Chemical is a compound of mercury, which exists in the +1 oxidation state, with chloride ion; (HgCl). Today, its applications are generally limited to specific industrial and laboratory usage where these properties are still valuable, like application in electrode systems for potentiometric measurements. Being highly toxic, great care must be taken in handling, storing, or disposing to prevent mercury poisoning and environmental contamination. Calomel chemical is a mercury compound that has for long been a compound used in medicine, electrochemistry, and industrial processes, though its use has declined due to the toxic effects of mercury.
Criteria | Specification |
Appearance (color) | White to off white |
Appearance (form) | Crystalline powder |
Solubility | Insoluble in nitric acid |
Assay | Minimum 99.6 % |
Non volatile matter test | NMT 0.1% |
Mercuric salt | Absent |