CAS : 7782-49-2
Molecular Formula : Se2
Formula Weight : 157.92
It is a nonmetal, chemically related to sulfur and tellurium, and rarely occurs in its elemental state in nature.It is a component of the unusual amino acids selenocysteine and selenomethionine. In humans, selenium is a trace element nutrient which functions as cofactor for reduction of antioxidant enzymes such as glutathione peroxidases.
Chemical Properties: dark grey to dark red powder or crystals
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