High Pure Selenium Metal - Se

Purity---
99.999％

Shape---
Powder,pellet

Dimension---
Total < 10PPM (Cu, Ag, Mg, Sb, Ni, Bi, Hg, In, Bi, Hg, In, Fe, Cd, Te, Ca, Al, Ti, Pb total <10ppm)

Property---
Gray block or red powder

Application---
Primarily used in the manufacturing of II-VI family compound semiconductor (ZnSe...), selenium drum materials, photoelectricity materials and all kinds of metal selenide, etc

Selenium is a non metallic chemical element, member of the group VI. In chemical activity and physical properties it resembles sulfur and tellurium.The steady selenium are a red amorphous crystalline powder, and a gray crystalline metallike form called metallic selenium. Metallic selenium form conducts electricity better in the light than in the dark and is used in photocells. Selenium burns in air and is uneffected by water, but dissolves in concentrated nitric acid and alkalis.

Basic Infomation

Name: Selenium

Symbol: Se

Atomic Number: 34

Atomic Mass: 78.96 amu

Melting Point: 217.0 °C (490.15 °K, 422.6 °F)

Boiling Point: 684.9 °C (958.05005 °K, 1264.8201 °F)

Number of Protons/Electrons: 34

Number of Neutrons: 45

Classification: Non-metal

Crystal Structure: Hexagonal

Density @ 293 K: 4.79 g/cm3

Color: gray