Physical property: It is the only liquid metal at room temperature.Silver white, easy flow.Density of 13.546.Melting point -38.87 ℃.Boiling point is 356.72 ℃.Combining +1 and +2.At room temperature, not by air oxidation, heating guilty of mercuric oxide.Mercury vapor is toxic!Have the ability to dissolve many metals, which collectively amalgam alloy.Soluble in nitric acid, soluble in hot concentrated sulfuric acid, but with dilute sulfuric acid, hydrochloric acid, alkali plays no role.
Funcation: Used in the manufacture of physical instruments (such as pressure gauge, thermometer etc.), pharmaceutical, mercury vapor lamp, mercury rectifier, amalgam, electrode, catalyst, gold and silver, silver amalgam fillings extraction, pesticides and mercury fulminate.The main nature into Chen sand (HgS) exists, also have a small amount of natural mercury.The vermilion plus a little carbon in air heating system.
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