Platinum group
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The platinum-group metals are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block.
Replica of the NIST national prototype kilogram standard, made in 90% platinum, 10% iridium alloy
Process flow diagram for the separation of the platinum group metals.
Platinum
Videos
Platinum is a chemical element; it has symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanis
Platinum group
…metals in the d-block (groups 8, 9, and 10, periods 5 and 6). The six platinum-group metals are ruthenium, rhodium, palladium, osmium, iridium, and platinum. They have similar physical and chemical properties, and tend to occur together in the same mineral deposits. However, they can be further subdivided…
Platinum crystals
Platinum being dissolved in hot aqua regia
A native platinum nugget, Kondyor mine, Khabarovsk Krai
Platinum-palladium ore, Stillwater mine, Beartooth Mountains, Montana, US