Platinum
Platinum is a more precious metal than gold and silver. Platinum is a transition metal (transition meta) whose symbol is Pt and its atomic number is 78. The name Platinity is taken from the Spanish word "platina del pinto". Its literal meaning is "Little Silver of the Pinto River".
Availability of platinum
> This is a rare metal.
> 0.003ppb of platinum is found in the earth's outer crust. ( pp stands for PartsperBillion ) platinum
> It is chemically pure and not mixed with any substance. Platiniridium is sometimes mixed with hiridium.
> It is sometimes mixed with nickel & copper ores. It does not corrode due to immersion.
> Platinum is mainly cuprite.
( Cooperite chemical symbol :- [pt, pd, Ni]S )
Properties of Platinum
> Platinum is a pure metal. Silver is a rare metal with white color, luster, density, malleability, ductility.
> It is mistaken for silver due to its color and shine.
> Platinum is insoluble in hydrochloric acid and nitric acid. Hardest of metals.
Uses of Platinum
> Used in jewelry making, laboratory equipment.
> Platinum has a very high chemical reaction resistance.
> It is widely used in industrial field due to its high thermal conductivity and stable electrical properties.
> It is used as a dental instrument. Used as electrodes.
> Used in platinum resistance thermometers.
> It is used as a catalyst in chemical reactions.
Platinum production
> Platinum deposits are found in the Bushveld complex of South Africa.
> South Africa is the leading producer of 80% of the world's platinum.
> Then 2nd place is taken by Russia, 3rd place by Canada.
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