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Questions tagged [noble-metals]

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7
votes
1answer
156 views

Gold Plating on Glass?

I am considering labware options to handle NaOH solutions at ~150°C. One appealing idea would be to coat my current glassware with gold. I've read different sources mentioning the possibility without ...
0
votes
0answers
24 views

How to remove amalgam from goldring [duplicate]

During the trituration of amalgam, accidentally it contact with my goldring and turns into silver colour. Is it possible to remove this silver coating from my ring??
1
vote
2answers
488 views

Gold/platinum + HF

I know that noble metals such as gold/platinum are unaffected by conc. mineral acids such as HCl or H2SO4 or HNO3 but Can be dissolved in aqua regia (mix of HCl and HNO3 in 3:1), but never heard about ...
5
votes
1answer
123 views

Why do noble metals like silver not form natural cubic crystals?

Pyrite forms cubic crystals, both in theory and in nature: However, the noble metals, like silver, that have cubic, face-centered lattices, do not seem to form cubic crystals in nature. One possible ...