Look around in your local yellow pages and see if you can find a ceramic supply store in your area. Theres more then likely atlest one or two. There  usualy so small you would not notice them. There you can buy MnO2 clean and many many other goodies so its worth a look. Hell I have heard of sulfate salts used for rakiu glazes so there is good odds you can just buy it clean there without the hassle of synthesising it from MnO2.

Basicly any Oxide, Nitrate, sulfate, chloride can be had from these places. Hell that even includes uranium salts if you really need that sort of thing. That may require a license though iv never tryed.

WOW no shit 

Must have been oxidised by the concentrated H2SO4 I would think.

Take care with that bucket also like you said.

Why is the cathode solution that dark? Is it the color of the sulfuric used or the carbon comming off the rod? Mine has stayed clear for some time.

No shit? My epoxy has been holding up pretty well.

  Ha thats what I thought about my latest experiment... Ill fill you in on that one some other time in some other place. I had a helper and his name was murphy. He has all kinds of laws and shit that I did not approve of. Little bastered fucked up every job I gavem, go figure.

Or criticaly high blood pressure levels.

I thought about melting when I saw the cable ties...


I have used stainless steel pieces from hardware stores.  The will corrode too, but at least you tend to get a few runs.  There are stainless zip ties in the electric aisle at home depot.

Your solution is very black now?
Once its black thats what you want. The pink- purple colors pure off the anode and as the solution gets darker so does what poors off the anode until the whole solution is black. This is what happened correct?

Quote
In initial stages of manganism, neurological symptoms consist of reduced response speed, irritability, mood changes, and compulsive behaviors.[2] Upon protracted exposure symptoms are more prominent and resemble those of idiopathic Parkinson's disease, which it is often misdiagnosed as, although there are particular differences in both the symptoms (nature of tremors, for example), response to drugs such as levodopa, and affected portion of the basal ganglia. Symptoms are also similar to Lou Gehrig's disease and multiple sclerosis.

No wonder my response times sucked after breathing in those fumes, not to mention I was VERY irritated. I put it down to the SO2, CO3, CO, CO2, C, but not the MnO2, Mn2O7 or other Mn shite. What I did was mix some KMnO4 with 40ml of 98% H2SO4, and fuck in a teaspoon of sugar. It crackled like Rice Crispies on speed, make pops of flame, and gouts of HORRIBLE smoke and aeroborne particulates which made my voice sound like a death metal growl for the day. I got part of it on video!!! Will fuck it on YouTube soon.

Another experiment was mixing 30g KMnO4, 40ml H2SO4 and then dribbling in some lighter fluid. WHUMP. It burst into fire, as hopd. It was awesome AND I got it on cam.

My latest is getting hot water, supersaturating with the 50% NaClO3 weedkiller and fuckloads of KMnO4, then stuffing in a load of strips and sheets of newspaper. I allow to cool with agitation, and then hang the strips to dry. It makes a smoky fuse which makes epic smoke grenades, wont burn through little holes, but it sure ignites Blackpowder. Videos soon

Finally, on Al powder. I get me coffee grinder, lighter fuel or petrol, stuff in little squares of Al foil, grind in short bursts to coarse powder. Then I allow to dry and ball mill until its ready to rock and roll (500 mesh +). I often ball mill Mg ribbon with it to make a shitty version of MgAl. Works alright.

I also heated Iron Oxalate to het pyrophoric Fe and poured it around a small charge of AP in sealed, N2 filled vessel. Produced a BEAUTIFUL effect.

 Next up is getting a blender, installing spark plug in lid, and blending up flammable powders to make a cloud, then firing the spark.

The pyrophoric Ni sounds FUN. But Nickel Hydrazine Nitrate comes first!

WOW this summer is FUN!

Oh, a mix of 60% KMnO4, 35% Fe powder and 5% powder of match head (not my choice, a idiot mate gave me the comp so I HAD to test it. I use sulphur instead) makes a very hot incendiary. I ignite using KMnO4 and Sugar 50:50. Yep, 2kg KMnO4 that HAD to be used up cos it ws contaminated with SOMETHING.

Hahaha no problem. I shall start my own thread once I get back from my holiday to france - upon my return expect LOTS of 'hot chemistry'.

 You guys know how my experiments go by now. I get into my lab, spot the chemicals. Then I go absolutely MAD. Ever seen a 250ml long neck RBF shooting fire from it? Same with conical flasks. 

Sometimes though there is method to my madness. Like mixing up some Mn2O7 and dumping in some AP - to see WHAT HAPPENS. The results? Mangled glassware mostly!