Chemical Forums
Specialty Chemistry Forums => Citizen Chemist => Topic started by: Joeyups7 on August 08, 2018, 07:16:24 AM
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So I have an excess of Mno2 and wanted some other compounds. So I took some dilute acetic acid and added Mno2 until there was no more reactions going on. Once bubbling stopped I filtered the solution and began to evaporate and then heated until it was all evaporated. To my surprise there was no crystal or powder but only a sticky goo like substance. So I added some distilled water to bring back into the solution and tried just evaporating without boiling and got the same results. The last thing I did was again add water but this time added NaHCO3 until no more bubbling. It appears that I now have H2MnO2 and C2H3NaO2. So I believe there was indeed manganese acetate. My question is how in the world do I get it to crystallize? Any help greatly appreciated thank you.
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First MnO2 can not get Mn-II. Check Oxidation numbers of manganese. Acetate can create polymer adducts, which not crystilize.
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Thank you for the reply. I made a mistake and said I ended up with H2MnO2 which is totally untrue. I did however get MnCO3. Isn't that an Mn-II?
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Yes it is. But the question is to go from MnO2 it is Mn-IV to Mn-II. You need a redox reaction. Acetic acid alone is not able to do it.
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Thank you for the replies. Helping me learn!