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RE: Silver, bright?

Posted by b.l.zeebub on March 6, 2017 at 08:20:07:
Silver does not oxidise easily.

The tarnish that appears on silver so quickly is silver sulfide and while silver oxide is a conductor silver sulfide is a semi-conductor.

Silver oxide is used as a switch contact for corrosive environments but it is really rather difficult to produce. Simply heating silver in the presence of oxygen doesn't work and silver oxide is produced in a reaction between silver nitrate and alkali hydroxide.

In the end silver cabling is rather pointless since silver is not that much better a conductor than copper. One could just increase the cross section of the copper cable by 5% and there will be no differences.

But I'm sure you knew all this! ;-)