Description
We can supply selenium series as follows:
1. Crude selenium with selenium ****9%
2. Selenium powder
High-purity Selenium
We sale High-purity Selenium like 4N 5N 6N Shape lump, grain, ingot
High-purity Selenium *9.*9% ，*9.**9%，*9.***9%  Shape:
lump, grain, ingot
Molecular Formula
Se   Molecular Weight *8.*6
Melting Point **7
degree    Boiling Point **5
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: *8.*6
Electronegative: 2.*5
Density: Ï=4.*1 g·cm−3
Melting Point: **1 °C
Boiling Point: **5 °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, In, Mg, Ni, Pb, Sb, Te 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, 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.
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