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Old 11-24-2002, 08:13 PM
subinai subinai is offline
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ammonia and aluminum mixed together?

hello. i have a bike frame that is made from aluminum. It has a warning about keeping Ammonia away from it. Why? What will happen if Ammonia comes in contact with the bike?

Thank You.
Ian
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  #2  
Old 11-24-2002, 08:26 PM
MannyL MannyL is offline
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I tried to google you an answer so I would have a cite but I failed. I also failed Chem (well never too kit) but when you combine Ammonia and aluminum you create a reaction that weakens the bike
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Old 11-24-2002, 09:24 PM
Squink Squink is online now
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kyou combine Ammonia and aluminum you create a reaction that weakens the bike[/quote] Exactly. The reaction between aluminum and Ammonia (Ammonium hydroxide) is similar to the one between aluminum and sodium hydroxide (lye).
Here's a link describing the Al, NaOH reaction. If you've ever used Drano, which is a mixture of sodium hydroxide pellets and Aluminum flakes you've seen this reaction. You end up with boiling water and a bunch of sodium alumininate. The bits of aluminum dissolve completely. If you use Ammonia rather than sodium hydroxide the reaction just goes a bit slower, and you get ammonium aluminates rather than sodium aluminates. The bits of aluminum, or your bike frame, still dissolves.
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Old 11-24-2002, 09:28 PM
Squink Squink is online now
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WTH ? Something ate the first few words of the quote.
"If you combine aluminum and ammoniayou create..."
  #5  
Old 11-25-2002, 02:07 AM
the_duke_69 the_duke_69 is offline
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minor Hijack...I read that if you put aluminum in drano you get hydrogen and put a balloon over the neck you can catch it to make a hydrogen bomb of somekind. Could this work?
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Old 11-25-2002, 08:07 AM
SavageNarce SavageNarce is offline
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"Hydrogen bomb" ? Maybe the Hindenburg sort, but not the Arms Limitation Treaty sort. See http://www.wackyuses.com/hydrogen.html for an example. Please note that this should be supervised by an adult, and it wouldn't hurt to have an ambulance standing by.
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Old 12-01-2002, 02:24 PM
subinai subinai is offline
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bump
  #8  
Old 12-01-2002, 02:29 PM
monica monica is offline
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I'm not sure if ammonia is the same as the stuff in toilet cleaner, but if it is...

An ex-friend of mine (llllooong story) showed me, much to my delight, that if you mix toilet cleaner and aluminum foil in a bottle, it will explode after a few minutes. Oh, how much fun it was to leave those things near no-tresspassing signs!

~ monica
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Old 12-01-2002, 03:40 PM
DocCathode DocCathode is online now
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Quote:
Originally posted by the_duke_69
minor Hijack...I read that if you put aluminum in drano you get hydrogen and put a balloon over the neck you can catch it to make a hydrogen bomb of somekind. Could this work?


Remember folks-Always wear the proper saftey equipment!

That and a little knowledge is indeed a dangerous thing.

Some home science projects(like the fine example in the link) are harmless. Some are good ways to win a Darwin award.

My landlord only charges me for hot water. Electric current and the proper electrodes will spilt water into oxygen and hydrogen. In theory, I could easily get enough hydrogen to fill that one-seat, pedal-driven blimp I've always wanted. In practice, I'd rather not be electrocuted, start an electrical fire, or keep a large amount of a volatile gas in the apartment.that and builing an ultralite aircraft entirely from recycled junk is a much more appealing project.
__________________
Nothing is impossible if you can imagine it. That's the wonder of being a scientist!
Prof Hubert Farnsworth, Futurama
  #10  
Old 12-07-2012, 11:31 AM
420_24/7 420_24/7 is offline
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Quote:
Originally Posted by monica View Post
I'm not sure if ammonia is the same as the stuff in toilet cleaner, but if it is...

An ex-friend of mine (llllooong story) showed me, much to my delight, that if you mix toilet cleaner and aluminum foil in a bottle, it will explode after a few minutes. Oh, how much fun it was to leave those things near no-tresspassing signs!

~ monica
Another thing you can do is get some canned air from staples, best buy, walmart, etc. then turn it upside down and spray it into a soda bottle or film canister and watch it explode (10 seconds to a minute for the film canisters; I've never tried bottles).
  #11  
Old 12-07-2012, 12:22 PM
beowulff beowulff is online now
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Quote:
Originally Posted by 420_24/7 View Post
Another thing you can do is get some canned air from staples, best buy, walmart, etc. then turn it upside down and spray it into a soda bottle or film canister and watch it explode (10 seconds to a minute for the film canisters; I've never tried bottles).
Reported.
  #12  
Old 12-07-2012, 01:10 PM
samclem samclem is online now
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Since this reply today has little to do with the OP, closed.

samclem
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