Bodge JobsIf you can't fix it with a hammer and a roll of duck tape, it's not worth fixing at all, my old mate said minutes before that nasty business with the hammer and a roll of duck tape. Tell us of McGyver-like repairs and whether they were a brilliant success or a health and safety nightmare.
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Scaryduck LIKES EGG, Thu 10 Mar 2011, 11:58)
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Don't do this unless you're an idiot.There is a reason the warnings on the side of the can tell you not to use it on aluminium.
2 Al + 6 H2O --- 2 Al(OH)3 + 3 H2
Al(OH)3 + NaOH --- Na+ + [Al(OH)4]-
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L-Space - scientia sapientes vocat., Wed 16 Mar 2011, 12:36,
1 reply)
For the two or three of us here who didn't take Chemistry A-LevelsCan you explain what that means and why it indicates it shouldn't be used on Aluminium?
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evil_andy Stick stick stick stick sticky sticky stick stick, Wed 16 Mar 2011, 13:55,
closed)
roughly...Aluminium is a very reactive metal, but in air it almost immediately forms a protective layer of aluminium oxide so it appears very stable. Sodium hydroxide, found in Mr Muscle, destroys this oxide layer, leaving the reactive metal exposed to form more oxide, and repeat the cycle... resulting in your aluminium disappearing pretty quickly.
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kingofpork is the king of pork, Wed 16 Mar 2011, 16:01,
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