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21st July 2015, 06:39 PM
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#1 |
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Member
Join Date: Dec 2004
Location: What is still UK
Posts: 5,844
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I still cannot see how molten cast metal will still hold mercury. An amalgam is not an alloy.?
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21st July 2015, 08:17 PM
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#2 |
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Member
Join Date: Mar 2006
Location: Room 101, Glos. UK
Posts: 4,216
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an amalgam is definitely an alloy - of mercury and another metal or metals. the word 'amalgam literally means mercury alloy.
tin amalgams were used to coat lighthouse mirrors, indeed by heating the base metal coated with the hardened tin amalgam to the point where the mercury was evaporated. rather poisonous. why they would use a low mercury tin amalgam and copper to make bronze, but i am not a proper metallurgist, just an engineer. mercury does not particularly like amalgamating with copper, and gold/silver amalgams could be used to coat copper or bronze, then heated to drive off the mercury (maybe killing a few slaves) leaving behind a nice coated surface that could be polished. |
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1st August 2015, 08:54 PM
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#3 |
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Member
Join Date: Nov 2004
Location: USA
Posts: 1,725
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Outstanding. Congrats, Ian.
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