averageaussie
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Manganese metal
Hello all,
is it possible to get manganese metal from an aqueous solution, or is that just something that wont work? the full procedure would also be
appreciated, if possible.
I also don't have access to any exotic, expensive or dangerous chemicals, but I would still like the procedure for future use when I am more
experienced.
thanks all, averageaussie.
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Rainwater
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How to get MnO2 from a battery
https://youtu.be/knc1lSupAwQ
How to make MnSO4 from MnO2
https://youtu.be/2gXByJkg0iY
How to purify MnSO4
https://youtu.be/BLJgBSrhZI8
Hot to make manganese metal from MnSO4
https://youtu.be/wBWba_anewQ
I've tried this without success.
I used the wrong type of battery to source the starting material.
Do your research of the hazards and dangers before you start.
Please dispose of waste properly
"You can't do that" - challenge accepted
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clearly_not_atara
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If you can make an anhydrous Mn (II) salt, this can be reduced by Mg in nonaqueous solvents. Hydrogen will usually be reduced before Mn.
MnCl2 is tricky to dry, since it can oxidize in the process. The anhydrous manganese (ii) formate can be recrystallized from formic acid:
https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10...
or it may be dehydrated at 75 C under vacuum:
https://pubs.rsc.org/en/content/articlelanding/1964/tf/tf964...
It might even be possible to reduce MnO2 to manganese formate directly with formic acid. If the anhydrous Mn(CO2H)2 can be dissolved in an aprotic
solvent, it should then be amenable to reduction by magnesium.
[Edited on 4-5-2023 by clearly_not_atara]
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Laurelium
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A fair warning; I don't know what I'm talking about and this is a completely esoteric method.
If you search on amazon.com.au, you may come across "Kryptonite Evolution Mini Integrated 10mm Chain Bicycle Lock " which claims to be made out of a
3t Manganese steel chain while the outer material is SS nylon. (Not all of them are made from such material.)
Each chain weights about 2-3Kg and manganese steel is said to be 11-14% manganese. Melting at about 1246 C, it could perhaps be done in a homemade
"electric heat treatment oven", of which many models exist on youtube. The chain can also be cut with power tools.
Many homemade electric oven builds advertise at least 800-1000 C and cost maybe about 100-150$ to make if not less. If you could reach a couple
hundred celsius more with perhaps gas instead, you could also recycle Pd/Pt metal from spent catalyst  .
[Edited on 12-5-2023 by Laurelium]
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MidLifeChemist
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I would say it is very difficult and for practical purposes not possible from aqueous solution.
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Bedlasky
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http://library.sciencemadness.org/library/books/brauer_ocr.p...
Page 1454. Pretty much easy setup.
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Sulaiman
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I'm all for up cycling of chemicals
but eBay prices for 99.x% electrolytic Mn are very low at the moment.
CAUTION : Hobby Chemist, not Professional or even Amateur
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