Chemical Formula: MoSe2
Catalog Number: ST0311
CAS Number: 12058-18-3
Purity: 99.9%, 99.95%, 99.99%, 99.995%, 99.999%
Shape: Discs, Plates, Column Targets, Step Targets, Custom-made
Selenium is a chemical element originated from Moon (with the Greek name selene). It was first mentioned in 1817 and observed by J. Berzelius and G. Gahn. The isolation was later accomplished and announced by J. Berzelius and G. Gahn. “Se” is the canonical chemical symbol of selenium. Its atomic number in the periodic table of elements is 34 with location at Period 4 and Group 16, belonging to the p-block. The relative atomic mass of selenium is 78.96(3) Dalton, the number in the brackets indicating the uncertainty.
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Everything was packed into a box into 3 separate smaller boxes and in the 3 smaller boxes each set was then packed again into individual boxes. The largest shipping box had some shipping air cushions. Everything seemed OK. Good.