Big discounting Cobalt Base Powder - 4N 5N 6N Se Metal Selenium granule – Huarui
Big discounting Cobalt Base Powder - 4N 5N 6N Se Metal Selenium granule – Huarui Detail:
Product Description
Selenium is a red or gray powder, with a gray metallic luster quasi – metal. Of the six known solid allotrophs, three crystals (α monoitalic, β monoitalic, and gray triangulite) are the most important. The gray hexagonal crystal system is the most stable with a density of 4.81g/cm3.
It also exists in three amorphous solid forms: two amorphous glassy forms of selenium, red and black. The former is brittle and has a density of 4.26g/cm3. The latter density 4.28g/cm3, the other is colloidal selenium.
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By Phoebe from Iraq - 2018.02.04 14:13
The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
By Elva from Qatar - 2018.11.04 10:32
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