We can supply selenium series as follows:
1. Crude selenium with selenium 20-99%
2. Selenium powder

High-purity Selenium

We sale High-purity Selenium like 4N 5N 6N Shape lump, grain, ingot

High-purity Selenium 99.99% ，99.999%，99.9999%  Shape: lump, grain, ingot

Molecular Formula Se   Molecular Weight 78.96

Melting Point 217 degree    Boiling Point 685 degree

Appearance and shape

Grey or black glass material, hard but brittle.

Main application

it is used in making glass, semiconductor materials for infrared optical lenses, selenium drum materials and test, and photometric, SCR, medicine, chemical industry, metallurgy, glass industry, float glass (tea glass, glass, glass blue ash, etc.), cadmium red, electronic industry, Xerox, etc.

Selenium (Se)

1, Physical character:

Atomic Weight: 78.96

Electronegative: 2.55

Density: ρ=4.81 g·cm−3

Melting Point: 221 °C

Boiling Point: 685 °C

2, Specification:

High Purity Selenium:

Se-05 Grade 99.999. The content of Selenium is above 99.999%. The total content of Ag, Al, Bi, Cd, Cu, Fe, In, Mg, Ni, Pb, Sb, Te is bellow 10 ppm;

Uitra Purity Selenium:

Se-06 Grade 99.9999. The content of Selenium is above 99.9999%. The total content of Ag, Al, Bi, Cd, Cu, Fe, In, Mg, Ni, Pb, Sb, Te 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.