Why are most precious metals so pliable?

Precious metal platinum, properties and history


PT Platinum / span. Platina "small silver" properties and history

pure form

origin

The history of platinum is more enigmatic than that of the other precious metals, so platinum has made repeated appearances throughout history. But the precious metal disappeared as quickly as it had become fashionable. It is known that platinum itself is contained in comets which fell to Earth 2 billion years ago. The history of platinum is similar to that of gold, here too it was the Egyptians who quickly learned to work with this metal. The Egyptians imported gold from the ancient kingdom of Nubia. This gold contained traces of platinum. Beautifully processed platinum could be found in South America, where the Incas used the precious metal to make ceremonial objects. From here on there was an incision that cannot be traced back to this day. The precious metal disappeared for 1500 years without much mention. It was only rediscovered in the Middle Ages.

New discovery

Rediscovered in the truest sense of the word. The Spanish conquistadors discovered South America and also this precious metal. The Spaniards ridiculed it as "little silver", the thirst for gold had blinded the Spaniards to such an extent that they did not recognize the true value of platinum. So this precious metal could safely go underground again and found no historical significance for a long time

This precious metal is not mentioned until the 18th century, when the alchemists recognized its important chemical composition. From that day on, platinum was sought as a coveted ingredient like never before. At that time the alchemists tried to make gold out of lead and needed platinum as an important ingredient in many recipes. That was the hour of birth of this super metal, because from that day on its value increased steadily.

When a Swedish scientist named Theophil Scheffer categorized the precious metal in 1751, platinum was given a very special status in most royal families. Some nobles even had platinum threads worked into their clothing. Others had whole platinum rooms prepared, such as the platinum room in the royal palace of Aranjuez. Suddenly this precious metal was more sought after and sought after than gold and it has remained so to this day. Many movie stars and wealthy personalities prefer platinum jewelry because of its rarity. Platinum jewelry in combination with a beautiful diamond is considered the absolute hit in film circles and is very much appreciated by actors.

properties

It is called a precious metal because it is extremely resistant to all known elements. The high resistance to corrosion and oxidation made this metal an object of desire. Platinum has a higher Resilience than any other precious metal used in the jewelry industry. It is 35 times rarer and has a significantly higher purity value than gold. 18 carat gold is 75% gold while 18 carat platinum is 95% platinum.
It is a very special metal, because a 15 cm platinum cube is as heavy as a full-grown person approx. 75 kg. A special feature is that no weight can be lost, a scratch on a platinum surface does not mean that the weight has been lost, as is the case with gold, for example. In the event of scratches on a platinum surface, the material is only shifted and not worn.

Another property is its extreme flexibility. So it is possible to pull a wire of 10 kilometers out of 5 grams of platinum. This property enables the jewelers to guarantee an absolutely creative processing of the metal.

Melting point : 1772 ° C
boiling point : 3827 ° C
density : 21.45 g / cm³
hardness : 4,3
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