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Os ( Osmium )

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Keterangan

       Osmium metal is unaffected by air, water and acids, but reacts with molten alkalis. The powdered metal slowly gives off osmium(VIII) oxide, the source of its pungent odour.

Nama lain (trademark, branding etc.)

Osmium, Osmij, Osmium - s, Osmio, Осмий, 

Spesifikasi Produk

Osmium's Name in Other Languages
Atomic Number 76
Group 8
Period 6
Series Transition Metals
Relative Atomic Mass (12C=12.000)  190.2
Boiling Point 5285K 5012°C 9054°F
Melting Point 3300K 3027°C 5481°F
Density/kg m-3  22590 (293K)
Ground State Electron Configuration  [Xe]4f145d66s2
Electron Affinity(M-M-)/kJ mol-1  -139
Discoverer discovered by S. Tennant in 1803 in 
Discovery Location London.
Discovery Year 1803
Name Origin Greek: osmê (odor).

Aplikasi

       Used to tip gold pen points, instrument pivots (such as compass needles and clock bearings), to make electric light filaments. Used for high temperature alloys and pressure bearings.

Bahan Baku

Osmium (from Greek osme (ὀσμή) meaning "smell") is a chemical element with the symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal in the platinum family and is the densest naturally occurring element, with a density of 22.59 g/cm3. It is found in nature as an alloy, mostly in platinum ores; its alloys with platinum, iridium, and other platinum group metals are employed in fountain pen tips, electrical contacts, and other applications where extreme durability and hardness are needed.

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