Mercury

A heavy silvery-white toxic liquid metallic element occurring principally in cinnabar: used in thermometers, barometers, mercury-vapour lamps, and dental amalgams. (Source: GEMET/ CED)

The Minamata Convention on Mercury lists Mercury as (d) elemental mercury (Hg(0), CAS No. 7439-97-6); as (e) "Mercury compound” means any substance consisting of atoms of mercury and one or more atoms of other chemical elements that can be separated into different components only by chemical reactions; and as (f) "Mercury-added product” means a product or product component that contains mercury or a mercury compound that was intentionally added (Source: Minamata Convention)