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Author: Subject: Gallium in an Al/Hg reduction
Fitz
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[*] posted on 24-3-2008 at 08:22
Gallium in an Al/Hg reduction


Does anyone here know of any patents or has any experience replacing Hg with Gallium in an Al/Hg reduction. Gallium prevents Al from forming an oxide layer and can reduce water to form hydrogen, but would it work in the same fasion as Al/Hg and if so, why is it not more widespread since Gallium is much safer to handle then Hg?
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bio2
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[*] posted on 24-3-2008 at 08:48


The mercury salt must dissolve the adhering Al oxide as well as inhibit reformation.

Metallic Hg works also albeit very, very slowly.

Will Gallium salts dissolve Al Oxide?
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Fleaker
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[*] posted on 24-3-2008 at 11:21


Yes, there is a paper on this effect already. I don't have it handy, but it will work for reductions of -NO2 to NH2 and for several other things.



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