Products Name:liquid hg(silver)
Risk:Highly toxic (chronic)
Mercury is a silvery white shiny heavy liquid that is chemically stable, insoluble in acid, and insoluble in alkali. Mercury can evaporate at room temperature, and mercury vapor and mercury compounds are highly toxic (chronic).
The melting point is -38.87 ° C, the boiling point is 356.6 ° C, the density is 13.59 g / cm 3 ; there is a constant volume expansion coefficient, the coefficient of thermal expansion is large, the conductivity is good, and the cohesion is strong.
Mercury chemical properties: Mercury is stable in air, slightly soluble in water, increased in solubility in the presence of air, soluble in nitric acid and hot concentrated sulfuric acid, and can react with dilute hydrochloric acid to produce a mercury chloride film on its surface, but Dilute sulfuric acid, hydrochloric acid, and alkali do not work. It can dissolve many metals including (gold and silver, but not including iron) to form alloys, which are called amalgams. Mercury has strong sulfophilicity and pro-copperity. Under normal conditions, it is easy to combine with sulfur and copper to form stable compounds. Therefore, in the laboratory, sulfur is usually used to treat the leaked mercury.