Chemical Forums
Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: DOracle on February 12, 2008, 10:05:33 AM
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Why is Al2O3 soluble in sodium hydroxide? What´s the minimal required concentration for?
I have no idea. THx.
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Al2O3 reacts with sodium hydroxide, to produce aluminum hydroxide, which is also insoluble. But, in an excess of hydroxide, aluminum from a soluble complex. "Minimum required concentration for" is a little hard to answer, any concentration (more than a trace, likely) so long as there is a "excess" which is a little hard to pin down.