Selenium

 Selenium

Model No.︰99.99%-99.9999%

Brand Name︰apollo

Country of Origin︰China

Unit Price︰US $ 50 / kg

Minimum Order︰1 kg

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Product Description


Selenium (Se)


1, Physical character:


Atomic Weight: 78.96


Electronegative: 2.55


Density: ρ=4.81 g·cm−3


Melting Point: 221 ℃


Boiling Point: 685 ℃


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.

Payment Terms︰ TT

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