3. Physical properties of platinoids

The main physical characteristics of platinoids can be summed up as follows: excellent corrosion resistance, good conductivity, good mechanical properties, low sensitivity to chemical attack, high melting points make them indispensable in very high-temperature environments. They are also excellent catalysts.

Some remarkable properties :

• Ruthenium and osmium: they share a common property, namely an oxidation state of up to +8, the most common being +2 and +3. The most stable compounds are fluorides or oxides.

• Rhodium and iridium: they have similar chemical properties,...