99.99%-99.9999% Selenium (Se)

الوصف

Selenium (Se) **9.*9%

 

Selenium (Se)

1, Physical character:

Atomic Weight: *8.*6

Electronegative: 2.*8

Density: ρ=4.*2 g/cm3

Melting Point: mp: **7 °C

Boiling Point: bp: **4.9 °C

2, Specification:

High Purity Selenium:

Se**5 Grade *9.**9. The content of Selenium is above *9.**9%. The total content of Ag, Al, Bi, Cd, Cu, Fe, Co, In, Mg, Ni, Pb, Sb, Te, Zn, Mn,Ca & Tl is bellow *0 ppm;

Uitra Purity Selenium:

Se**6 Grade *9.***9. The content of Selenium is above *9.***9%. The total content of Ag, Al, Mg, Au, Bi, Cd, Co, In, Cu, Fe, Te, Pb & Ni is bellow 1 ppm.

3, Physical Size:

Virgulate, Powder.

4, Usage:

It is mainly used in the preparation of the material of the selenium drum, photoelectric material, electrostatic photogragh and other materials of optical instrument..

5, Packing:

It is packed with dacron film, then covered with a sealed plastic film bag.