Is lead toxic?

Toxic. Lead is a soft and malleable weak metal and a heavy metal. Lead was originally blue and white, and its surface was quickly covered with a layer of dark gray oxide in the air. It can be used in buildings, lead-acid batteries, warheads, artillery shells, welding materials, fishing gear, fishing gear, radiation protection materials, trophies and some alloys.

Lead is poisonous. Lead is a soft and malleable weak metal and a heavy metal. Lead was originally blue and white, and its surface was quickly covered with a layer of dark gray oxide in the air. It can be used in buildings, lead-acid batteries, warheads, artillery shells, welding materials, fishing gear, fishing gear, radiation protection materials, trophies and some alloys.

Physical and chemical properties lead is a bluish silvery white heavy metal with melting point of 327.502 degrees, boiling point of 1740 degrees, density of 1 1.3437 g/cm3, hardness of 1.5, soft texture and low tensile strength.

Lead without oxide layer has bright color, high density, low hardness and strong ductility. Its conductivity is quite low and its corrosion resistance is very high, so it is often used as a container for corrosive substances (such as sulfuric acid). Adding a small amount of antimony or other metals can further improve its corrosion resistance.

Metal lead contacts with oxygen, water and carbon dioxide in the air, and its surface will be rapidly oxidized to form a protective film.

When heated, lead will quickly combine with oxygen, sulfur and halogen.

Lead has little effect on cold hydrochloric acid and cold sulfuric acid, but can react with hot or concentrated hydrochloric acid and sulfuric acid. Lead reacts with dilute nitric acid, but not with concentrated nitric acid; Lead will slowly dissolve in strong alkali solution.