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Thread: violent reactions

  1. #1 violent reactions 
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    can someone please tell me what reaction is the most violent and give balanced symbol equations please


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    WYSIWYG Moderator marnixR's Avatar
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    your question is rather vague, but as far as normal chemistry is concerned, the ones that immediately spring to mind are :

    when water is added to sulphuric acid
    when aluminium curls are added to undiluted nitric acid
    when sodium is allowed to react with air or water


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  4. #3  
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    currently all i know is normal chemistry so that is a good reply thank you but what about aluminium and bromine would you consider that a violent reaction
    and 1 more thing
    what reaction would give out the most heat energy providing it was done at room temp to your knowledge
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    WYSIWYG Moderator marnixR's Avatar
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    sorry, i was just quoting from old memories of my chem lab days
    these were the ones that we were warned of or that i've seen go wrong with my own eyes

    don't have any data on heat generated during a reaction - i assume that a book on the thermodynamics of reaction might help
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    cheers
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  7. #6  
    Forum Ph.D. Nevyn's Avatar
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    why are you after ways of making explosives? I am not sure it goes with forum guidlines
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  8. #7  
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    its not that i intend to do i am just into pyrotechnics and would like to do the practical side some time
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  9. #8  
    Forum Junior Twaaannnggg's Avatar
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    Fluorine and Hydrogen makes some preeeeeetty violent reaction. Radical formation with this reaction starts spontaneously, unlike Hydrogen-Oxygen where you need to initiate the reaction with a spark

    Balanced equation:

    F2 +H2 -->2HF
    Build a man a fire and he will be warm for a day, set a man on fire and he will be warm for the rest of his life.
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  10. #9  
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    Rubidium + Water, I think.

    Saw it on the science channel....REALLY REALLY big explosion, but rubidium is also really hard to get ahold of.
    Of all the wonders in the universe, none is likely more fascinating and complicated than human nature.

    "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

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  11. #10  
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    No...the most violent reaction is H+H.
    Of all the wonders in the universe, none is likely more fascinating and complicated than human nature.

    "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

    "Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence"

    -Einstein

    http://boinc.berkeley.edu/download.php

    Use your computing strength for science!
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  12. #11  
    Forum Junior Twaaannnggg's Avatar
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    Quote Originally Posted by Cold Fusion
    No...the most violent reaction is H+H.
    I guess this should read "D+T --> He + delta E" ?? And this is physics, not chemistry.
    Build a man a fire and he will be warm for a day, set a man on fire and he will be warm for the rest of his life.
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    Forum Ph.D. Nevyn's Avatar
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    a good one is thermite reactions (not really an exlosion but very violent)
    Aluminium powder is mixed in with Iron oxide. However it takes a large amount of heat to ignite it so conventional methods aren't to successful. Propane torches work well I am told.

    Fe2O3 + 2Al --> Al2O3 + 2Fe


    EDIT: apparently it can explode if the entire pile is preheated by a propane torch
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  14. #13  
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    when dealing with thermite you want to use magnesium ribbon as a fuse because you can use a normal lighter to ignite the magnesium and it gets hot enough to ignite the thermite
    You Play With Fire And You Get Burned
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  15. #14  
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    cool stuff but i dont think i can get hold of thermite but i can get hold of aluminium and could borrow some magnesium ribbons from school
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    I'm just studying basic chemistry, but as far as I'm concerned you can simply put any alkali metal in water and have a more or less violent reaction.

    You'll get the most violent reaction when putting some Francium in the water, but since that is nearly imposible get a hand of you can simply use potassium or sodium. Not quiet the same, but still a pretty violent reaction.
    Play with fire and you will get burned.
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  17. #16  
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    tetra-nitro-toluene and oxygen.

    You can get your hands on some rubidium, and maybe even some ceasium, but you wouldn't get any francium. I remember reading there is an estimated total of 30g at any one time existing naturally in the Earth's crust.

    Thermite shouldn't be too hard to find either. It's used in industry (joining rail track segments together for example), and you can probably find a supplier for it easily....or as you say, mix up your own...after all it's only aluminium, and metal oxide...you can use rust, (Iron oxide) for the metal oxide, which shouldn't be too hard to get.
    Chance favours the prepared mind.
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