Liquox

Dan sent me a reference to "Liquox", a 40% solution of sodium permanganate 
that is commercially available, which sounds like a heck of a lot better 
deal than mixing 5% solutions of potassium permanganate ourselves for 
liquid catalyst experiments.

We just got a price quote, and it is $3.14 / lb in five gallon (57 lbs) 
quantities, with prices obviously dropping at drum quantities.

Since you only need 1% or so in catalyst, this is quite inexpensive.  If we 
decide to make a big liquid catalyst motor, we could use stabilized 
peroxide at half the cost of the ultra-pure we currently use.

John Carmack