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Most are insoluble in standard acids. Gold and platinum require Aqua Regia (a 3:1 mixture of HClcap H cap C l HNO3cap H cap N cap O sub 3 HNO3cap H cap N cap O sub 3 acts as an oxidant, while the Cl−cap C l raised to the negative power
They possess high positive reduction potentials (e.g., Chemistry of Precious Metals
Precious metals form stable bonds with carbon, leading to critical catalysts like the Grubbs' catalyst (Ruthenium) for olefin metathesis or Wilkinson’s catalyst (Rhodium) for hydrogenation. 4. Oxidation States and Geometry Most are insoluble in standard acids
The most significant chemical application of precious metals is in . Oxidation States and Geometry The most significant chemical
The chemistry of precious metals—primarily the (platinum, palladium, rhodium, ruthenium, iridium, and osmium) along with gold and silver —is defined by their remarkable resistance to corrosion, high density, and unique electronic configurations.
Precious metals are often called "noble" because they resist oxidation and protonic acids.
Notable for reaching very high oxidation states. Osmium tetroxide ( OsO4cap O s cap O sub 4 ) features Os in the +8positive 8 state and is a powerful (though toxic) oxidizing agent. 5. Emerging Applications: Photochemistry and Medicine Cancer Treatment: Cisplatin (
