Aqueous potassium permanganate is too weakly concentrated (6% sat. sol.) for efficient decomposition catalysis I read. Althought the Nazi's used it in their V2 propellant pumps; they did not use it in their jet motors (early Me 163A plane).
The Carus NaMnO4 (Liquox) is expensive and a strong oxidizer which attacks most organics (like skin). It is a mess to work with and leaves MnO2 stains and deposits everywhere. It is a potential explosive with some materials. Yes, you can efficiently remove MnxOy stains with aqueous 50 g hydroxylamine hydrochloride/L solution, but that is still a mess. The calcium peramanganate is no longer for sale Carus Company told me. Why return to the EARLY Messerschmitt era? What is wrong with manganese acetate tetrahydrate? The USP? It is cheaper and combusts and is not an oxydizer and forms no explosive mixtures. It dissolves in alcohols (fuel) and does not react with alcohols. Permanganates OTOH attack alcohols. Att. is a solubility table of typical homogenous (liquid) hydrogen peroxide decomposition catalysts. JD ----- Original Message ----- From: "John Carmack" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, June 03, 2004 9:58 PM Subject: [ERPS] 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 > > _______________________________________________ > ERPS-list mailing list > [EMAIL PROTECTED] > http://lists.erps.org/mailman/listinfo/erps-list > _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list
