Stupid chem question here, but the net's not helping.
What is the oxidizing power of Aqua Regia compared to MnO2?
More specifically, I'm wondering what would happen if the mixture of MnO2 and Mn3O4 found in batteries were subjected to aqua regia treatment. What salt and oxidation number would I end up with? It seems to be such a waste to blast KMnO4 down to an Mn(II) salt, only to oxidize it back up again to Mn(III). Old batteries contain an electrolyte, carbon, and manganese salts, whose oxidation level depends on the charge state of the battery. To use this as the raw material for Mn(OAc)3 synthesis would bee most honorably economical and efficient.