1. Context
The scarcity of platinoids very quickly forced manufacturers to think about their recycling (refining), a challenge made all the more difficult by the fact that their average melting point is over 2,000°C and that they are generally not very sensitive to chemical attack. As precious metals, they are subject to price fluctuations, which can sometimes hinder innovation in new industrial applications.
Despite this scarcity, numerous applications are emerging, such as fuel cells.
Julius Caesar Scaliger (Italian physicist – 16th century): "A substance impossible to melt by fire or by any other means known to the Spanish arts".
• 1557: In Latin America, a metal with the appearance of silver was discovered in gold mines.
• 1758: publication...
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