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#1
12-24-2010, 12:57 AM
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Mercury Vs Aluminum
http://www.dump.com/2010/11/29/two-hour-timelapse-a-small-amount-of-mercury-is-placed-on-top-of-aluminum-and-it-evidently-begins-to-attack-it-video/
What's the chemical process here? it's pretty insane
__________________
hum..... 1987 300TD 311,000M Stolen. Presumed destroyed 
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#2
12-24-2010, 07:43 AM
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I dont think it is chemical as much as physical. Aluminum is a porous metal. I think what we're seeing is the mercury migrating through the pores flushing out oxidation and impurities. It appears to be gravitational. I'd like to see if the same action occurs if you placed the aluminum into a pool of mercury.
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#3
12-24-2010, 10:02 AM
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that would be my guess too.
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#4
12-24-2010, 10:04 AM
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If only there were some sort of on-line search engine that one could use...
http://www.google.com/search?q=aluminum+mercury&hl=en&num=10&lr=&ft=i&cr=&safe=images&tbs=
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#6
12-24-2010, 11:34 PM
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The mercury (Hg) is dissolving the Al, The Hg migrates along the grain boundaries & so weakens the Al. This is why Hg is prohibited on air craft. Drop a tea spoon full on the floor over the wing & have it destroy the airframe. If you place a small piece of Al in some Hg it will dissolve completely in time. it does the same thing to brass. Its fun stuff to play with but very poisonous, even the fumes from it are harmful.
__________________
Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort....  1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles  1987 250td 160k miles English import  2001 jeep turbo diesel 130k miles  1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving
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