Seleniumis mainly used for the preparation of toner
cartridge materials, photoelectric materials, electrostatic
photography and other optical instrument materials. It is the basic
material for the production of various metal selenides and compound
semiconductors.
Characteristic:The gray hexahedron with metallic luster has a
relative specific gravity of 4.**2 to 4.*6, a melting point of **7
to **0.5 ° C, and a boiling point of **4 to **0 ° C.Its electrical
conductivity changes drastically with the change of light
intensityApplication:Used in the preparation of II-IV compound
semiconductors, optoelectronic materials, electrostatic photography
and optical instruments.