felinlasv Posted May 6, 2004 Share Posted May 6, 2004 Hi, During my courses I recently performed a labtest in which this reaction occured after heating. There was MnO2 present too (to speed up the reaction) 2KCLO3 -> 3O2+2KCL Now I heard that you can use (powder)sugar in stead of MNO2 as a katalysator. Can anybody explain me why or how sugar will speed up this reaction? Link to comment Share on other sites More sharing options...
budullewraagh Posted May 7, 2004 Share Posted May 7, 2004 yep, i can help. the MnO2 catalyzes the reaction you described above because the Mn is electropositive enough to draw the O away from KClO3. as a result, the molecule decomposes and yields O2+KCl. i'm quite sure that no sugar could catalyze this reaction, considering the electropositivity of carbon is very little. however, if you tell us what sugar you're speaking of, that may shed light on the topic. Link to comment Share on other sites More sharing options...
felinlasv Posted May 9, 2004 Author Share Posted May 9, 2004 I've heard from several sources that KCLO3 mixed with powdersugar burns very intense when lit (they used it as a fuel to make small rockets). I was referring to this process, because I thought that the sugar would catalyse the reaction. This is indeed not the way things go so I was wondering if it's possibily that the sugar is only needed to produce the neccesary heat for the KCLO3 to decompose and form O2+KCL which in their turn will speed up the burning (because of the release of O2) and so create a chainreaction? Link to comment Share on other sites More sharing options...
felinlasv Posted May 12, 2004 Author Share Posted May 12, 2004 Can anybody help me here? Link to comment Share on other sites More sharing options...
felinlasv Posted May 12, 2004 Author Share Posted May 12, 2004 Ok, I'll try to figure it out myself Link to comment Share on other sites More sharing options...
YT2095 Posted May 12, 2004 Share Posted May 12, 2004 sugar chlorate mix, the products will be Kcl as you stated. lots of water and CO2 it`s NOT a catalyst as it is effected in the reaction, catalysts are not 1C12H22O11 + 8KClO3 = 8KCl + 11H20 + 12CO2 it`s something like that anyway Link to comment Share on other sites More sharing options...
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