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"rejuvenation" of potassium permanganate
Potassium permanganate is known to be used at the discoloration process of jeans . A way of application is by impregnating pumice stones in a potassium permanganate solution and after that remove the pumice and let them dry . In this way pumice stones "encapsulate" an amount of permanganate and can be used to "stonewash" jeans and diminish the shade of jeans at the same time . This application results in a fashionable effect . As a result we get an inormous amount of pumice stones having a brown shade.(This is the inactivated form of potassium permanganate, magnesium oxide). Is it possible to "rejuvenate" the pumice? Is it possible to regain some of the quantity of permanganate by "oxidation" of the magnesium oxide?
- Although potassium permanganate is made from manganese dioxide, the process would require that the MnO2 was extracted from the stones. My guess is that this would not be economically viable. However, the stones could be re-impregnated with potassium permanganate to recharge them.
potassium maganate redirect
The link for potassium manganate redirects to potassium permanganate. This is incorrect. Potassium permanganate has the formula KMnO4 (Mn is in the +7 oxidation state)and is purple, while potassium manganate has the formula K2MnO4 (Mn is in the +6 oxidation state) and is dark green. These are two separate compunds, and should be listed as such.
down in hazards theres a sentence "such as a powder mixture of KMnO4" is it supposed to be powder? im not good with science so i didnt want to change it and find out powder meant something.
No KMnO4 does not come in the form of a powder, in fact it exists in form of dark voilet crystals.
Edit suggestions antidote topic
I decided to erase headline no 5 "As an antidote" because the information stated is not backed up by any references at all. The text said: "Potassium permaganate's use as an antidote for opium and specifically morphine overdose has been described in medical literature". Furthermore to my knowledge KMnO4 is not used as an antidote against any intoxicants. I know it used to be listed as an antidote agent (at least in sweden) against phosphorus, but this is no longer the case. -If it indeed is being used/misused outside of hospital settings somewhere for antidote reasons then I think it could be mentioned in the article, but then the claim would have to be backed up by quotation(-s) (and explain that it is equally effective as horse manure at combating opioid intoxication). /Chris 15:35, 08 October 2012 CET — Preceding unsigned comment added by 220.127.116.11 (talk)