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4hv.org :: Forums :: Chemistry
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Aluminum & mercury

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Swany
Mon Mar 27 2006, 04:43AM
Swany Registered Member #261 Joined: Mon Feb 27 2006, 12:34AM
Location:
Posts: 22
I would be inlined to belive that even with washings from NaOH, and then dH2O, the oxide layer would simply reform. I would say your best bet is wash with dilute HCl, then put the Hg on top of that with no furthur washings. If you wipe it off, you still have some acid there that is perpetually eating the oxide layer, and that should not interfere too much with your amalgamation.

I just recieved 3lbs of Hg, so I may have to try this as well.
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govtcontact
Mon Mar 27 2006, 07:49PM
govtcontact Registered Member #343 Joined: Fri Mar 24 2006, 02:45PM
Location: Los Alamos NM
Posts: 10
In air, it takes Al a while to form a oxide layer thich enough to hinder the rxn. This process has worked for me many times.

Just dont leave the Al in contact with the dH2O/NaOH solution to long. You only want to remove the oxide, not the Al.

I have always used Al shavings from a machine shop, but Al baking trays (pie, turkey, ect) work just as well.
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