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Techman588

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Everything posted by Techman588

  1. I have never heard of concentrating H2)2 by freezing. The only method I have even heard mentioned is by distilation and that takes some special equipment to do and do safe. Reasons to have hydrogen peroxide in concentrations of 75% to 90% include use as a propellant in rocket engines, some use a solid fuel and oxidize it with high percentage strength H2o2, another rocket motor is where H202 is decomposed rapidly (read explosively) in a chamber on Silver mesh screens into high pressure steam then directed through a nozzel to get thrust. An example of the first was a land speed record car with the miss Budwiser title they used HDPE as the fuel, they set a record dont know if its still held or not, the second type has been used in the Bell Rocket belt famous in several films. If you need a source of H2O2 of less than 30% strength its available in most areas over the counter in of all places BEauty Supply outlets (Amazing what folks will put on thier hair aint it?) as 20,30 and 40 Volume strength CLEAR Developer, be aware the cream type developer wont work. Some Supply outlets are for "pros" only if you find this just get a hairdresser to get it for you, stuff is cheap a quart bottle is less than 5 bucks and there is no hassle with shipping when you pick it up. Hope this is helpful. Be carefull the 20 volume is strong enough to slightly burn your skin!!
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