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Author: Subject: Fe3o4 electrode
kclo4
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[*] posted on 28-12-2004 at 23:16
Fe3o4 electrode


I here that there are tow main electrodes for chlorate production by electrolysis pbo2 and fe3o4(that are cheap) how hard would it be to melt fe3o4 in a normal microwave and how good do they work compared to lead dioxide electrodes and is it possible to get it from a cow magnet
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BromicAcid
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[*] posted on 28-12-2004 at 23:42


If you have powdered magnetite (or iron oxide black) I don't think you'll be able to fuse it in a microwave from what I've seen microwaves have trouble melting glass and when magnetite melts it decomposes to ferric oxide, the transition occurring slightly above 1500C. If the electrode is just magnetite then couldn't a large piece be simply procured from a mineralogical shop? Too bad hematite can’t be used, I see it all the time at convience stores for a ‘mood’ stone to help calm people. I’m sure this has already been extensively investigated by someone out there, perchlorate cells were all the rage at one time so you should be learning more soon.



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kclo4
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[*] posted on 30-12-2004 at 03:08


on the msds sheets it say it melts Over 1200º F
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[*] posted on 30-12-2004 at 07:13


Iron (II, III) oxide, magnetite, Melting point: 1594 degrees centrigrade. Thats a lot. Perhaps fusing it would not require it to be molten, if it could be made as a fine powder, then perhaps it could be fused like ceramics.

One way to make it a fine powder would be to heat iron sulfate to its decomposition temperature.




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BromicAcid
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[*] posted on 30-12-2004 at 18:47


That process is called sintering I believe, if you heat the sulfate to the decomposition point I'd think that you would end up with one singualr oxide not the exact mixture that constitutes your desired product, if you look at a structure of it, it doesn't look that simple, spindles of alternating iron oxides and such, I'm sure someone has messed around trying to make these type of electrodes before.



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kclo4
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[*] posted on 30-12-2004 at 21:49


could you decompose iron acetate to fe3o4 i cant find much info on it

[Edited on 1-1-2005 by kclo4]




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