In what fields is tourmaline generally used?
Tourmaline is the general name of tourmaline group minerals. Its chemical composition is complex. It is a cyclic silicate mineral of aluminum, sodium, iron, magnesium and lithium characterized by boron. The hardness of tourmaline is usually 7 ~ 7.5, and its density is slightly different according to different types. Tourmaline is also called tourmaline, tourmaline, etc. Application fields: 1. Water treatment Because tourmaline has a permanent spontaneous electrode, the generated electrostatic field can adsorb heavy metal ions (Cu2 +, Pb2 +, Zn2 +, Cd2 +) and impurities in water, so it can be used in sewage treatment. 2….
