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     78    

78 Pt Platinum

Transition metal, mass: 195.08 u, 5 stable isotopes (192, 194, 195, 196, 198), abundance rank (earth/space): 77/49

Click image to magnify. Two ultrapure platinum crystals, each 1 cm big, together about 1 gram.
Platinum 2 platinum crystals
Platinum is a heavy, soft, silvery metal, which is extremely persistent against corrosion and tarnishing. Furthermore, it is very rare and expensive, which makes it a treasured jewellery metal. The industry has a high platinum demand, notably for catalysts the metal has outstanding properties. At a catalysis, the platinum isn't consumed and can be recycled. Some substances, like hot aqua regia, can corrode it and produce platinum compounds, many of these are very toxic.


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