how much sodium hydroxide does it take to melt aluminum?

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Offline The Acid King

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I have some but not a lot of sodium hydroxide and I heard you could melt aluminum with it but I don't know how much

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Offline SorryDnoodle

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Re: how much sodium hydroxide does it take to melt aluminum?
« Reply #1 on: 26/06/2013 18:49:01 »
Sorry but no, you can't melt aluminum ith Sodium hydroxide, however you can disolve it.

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Offline damocles

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Re: how much sodium hydroxide does it take to melt aluminum?
« Reply #2 on: 29/06/2013 23:15:18 »
The stoichiometric ratios for the solution are 40 of NaOH to 27 of Al, but it is necessary to have an excess of NaOH. I would say that 2 to 1 is a decent minimum. It is also true that Al will not dissolve in cold NaOH. A temperature above 80C is desirable -- certainly above 60C.

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