Amalgam (chemistry) | Wikipedia audio article
Channel: Subhajit Sahu
Date: 2018-12-27

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Amalgam_(chemistry)


00:00:45 1 Etymology
00:01:42 2 Important amalgams
00:01:52 2.1 Zinc amalgam
00:02:30 2.2 Potassium amalgam
00:03:54 2.3 Sodium amalgam
00:04:37 2.4 Aluminium amalgam
00:05:53 2.5 Tin amalgam
00:06:10 2.6 Other amalgams
00:08:09 2.7 Dental amalgam
00:09:16 3 Use in mining
00:10:39 3.1 Gold amalgam
00:10:48 3.1.1 Gold extraction (mining)
00:11:57 3.1.2 Gold extraction (ore processing)
00:12:29 3.1.3 Gold extraction (retorting)
00:13:21 4 Amalgam probe
00:14:23 5 Toxicity
00:14:44 6 See also



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SUMMARY
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An amalgam is an alloy of mercury with another metal, which may be a liquid, a soft paste or a solid, depending upon the proportion of mercury. These alloys are formed through metallic bonding, with the electrostatic attractive force of the conduction electrons working to bind all the positively charged metal ions together into a crystal lattice structure. Almost all metals can form amalgams with mercury, the notable exceptions being iron, platinum, tungsten, and tantalum. Silver-mercury amalgams are important in dentistry, and gold-mercury amalgam is used in the extraction of gold from ore.