Hebei Niuke Technology Co., Ltd
Hebei Niuke Technology Co., Ltd. has a building area of 20,000 square meters and 500 employees. The company has domestic advanced pet food, cat litter, pet snack production equipment, puffing
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Selenium Metal Powder
PROPERTIES
Amorphous red powder, When heated, it turns to crystal and turns into during the long term storage. The S.G.of Crystalloid Selenium powder is 4.5g/cm3, with M.P.of 685°C; Amorphous selenium will soften at 40°C and melt at 217°C. Crystalloid selenium with property of semiconductor is dissoluble in strong nitric and alkali. Selenium can be alloyed with silver, copper, zinc and lead, low toxicity.
APPLICATION
Pharmaceutical, chemical, glass, electronic, metallurgy, ceroscopy industry.
PRODUCT NAME: SELENIUM POWDER
|
ITEM |
STANDARD |
|
Appearance |
Gray to black powder |
|
Se |
≥99.9% |
|
Cu |
≤10ppm |
|
Hg |
≤10ppm |
|
As |
≤30ppm |
|
Sb |
≤10ppm |
|
Te |
≤70ppm |
|
Pb |
≤20ppm |
|
Fe |
≤50ppm |
|
Ni |
≤20ppm |
|
Particle size |
200mesh |