Is platinum really the rarest precious metal?

Yes. Only 150 tonnes of platinum can be mined worldwide each year, of which 60 tonnes are used for jewellery. The total output of gold is 3,300 tonnes a year, and it has been estimated that if all the previously mined platinum were put together, it would be the equivalent of a 5-metre square cube, with small reserves. Usually demand exceeds supply.

Is it really hard to get platinum from its raw material?

Yes. To get an ounce, or 31.1 grams, of platinum, it takes up to five to six months to process 10 tons of ore to make "one ounce of platinum ingot" from the raw material. It would take three to five weeks to extract the same amount of gold from three tonnes of ore. Can platinum mines really be found everywhere in the world? Isn't. In fact, only a few regions on the planet produce platinum. South Africa accounts for 68 percent of the world's total annual supply, Russia 25 percent, North America 5 percent, and the remaining 2 percent comes from other countries - mainly Zimbabwe.

Does platinum really have special physical properties?

Is true. First of all, the proportion of platinum is 21.45g/cm3(much larger than the ratio of gold and silver, the proportion of gold and silver are 19.3g/cm3 and 10.5g/cm3), and has a very high melting point, reached 1773℃, the melting point of gold and silver are 1063℃ and 960℃. Secondly, it has excellent acid and alkali resistance (in addition to at 70℃ with aqua royal can be dissolved it, no other acid, alkali solution can be dissolved it.) And high temperature resistance (heating can not deform). Because of platinum with these features, so in 1795 using decimal based metric, with platinum making the standard of the meters and kilograms, can this two samples are still in sevres, near Paris, found in the collection of Breteuil, although has the character of the immutable platinum, but the ductility of the metal also has incredible, That is, 1G of thin platinum wire, the length of which can extend up to 2 kilometers.

Is platinum a contaminant and cause allergies?

It's not true. In fact, on the contrary, platinum is completely anti-allergic and a powerful ally in the fight against environmental pollution and harmful diseases. The catalytic properties of platinum can be used to reduce air pollution caused by motor vehicle exhaust. In fact, the filter in the muffler of a car contains platinum. It is also used to make pacemakers and to treat mysterious types of cancer, such as ovarian and testicular tumours.