I need to build a model volcano?

Discussion in 'Community Discussion' started by Eric Lewis, Apr 2, 2008.

  1. Eric Lewis macrumors 68020

    Eric Lewis

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    Feb 4, 2007
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    CANADA? eh?
    #1
    What are some good chemicals?

    BTW: i cannot use baking soda and vinegar

    thanks
     
  2. EricNau Moderator emeritus

    EricNau

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    Apr 27, 2005
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    San Francisco, CA
    #2
    15-30% Hydrogen peroxide and Manganese dioxide. Granted, obtaining that strength H2O2 may prove difficult.
     
  3. iJohnHenry macrumors P6

    iJohnHenry

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    #3
    Yellow phosphorous and air.

    Then stand back. [​IMG]

    Oh, and it's packed in oil for a reason.
     
  4. Leareth macrumors 68000

    Leareth

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    Vancouver
    #4
    regular peroxide and iron shavings does the trick too

    or if you want to be really morbid; peroxide and dried blood (fishing bait)
     
  5. MM07 macrumors 6502a

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    Feb 10, 2008
  6. dvince2 macrumors 6502

    dvince2

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    #6
    Do you need it to "erupt"? or just sit there and simmer?
     
  7. CorvusCamenarum macrumors 65816

    CorvusCamenarum

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    Dec 16, 2004
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    Birmingham, AL
    #7
    Brake fluid and chlorine (the kind you get for swimming pools). Best to maintain a distance after you mix it and not do it anywhere near anything you mind having razed.
     
  8. OnlyMarcusCannn macrumors regular

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    May 19, 2007
    Location:
    Las Vegas, NV
    #8
    I've heard of people using orange food-colored club soda and a block of dry ice to make it erupt. I'm not sure if it works, but it seems possible.
     
  9. MacHipster macrumors 6502

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  10. 119576 Guest

    119576

    Joined:
    Aug 6, 2007
    #10
    use real magma.

    I remember making a 'Mt. Etna' easter bonnet in primary school. I spent a long time in the burns ward.

    (mentos and diet coke is a "good" idea)
     
  11. Prof. macrumors 601

    Prof.

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    Aug 17, 2007
    Location:
    Chicago
    #11
    Actually, that will work. As long as it's not against the rules, I'd say go for it.
     
  12. macEfan macrumors 65816

    macEfan

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    Forbidden, you do not have access to that server
    #12
    Yeah, that method seems to be the easiest too :D
     
  13. Santa Rosa macrumors 65816

    Santa Rosa

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  14. gonyr macrumors 6502

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    Jul 9, 2006
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    Niagara County, NY
    #14
    If safety isn't a concern (meaning you have a method to ignite it, and can watch from a proper distance), I'd mix up a batch of thermite. Easy to make, and quite spectacular.
     
  15. hmmfe macrumors regular

    Joined:
    Feb 28, 2003
    #15
    You can use potassium permanganate and glycerin.

    But, I think one of the better chemical reactions is to use ammonium dichromate (add in some magnesium shavings) - then light using a match. It is not really dangerous but you want to be in a ventilated area because the fumes are not the most healthy for you. It does not do the flowing lava thing but instead does a slow burn with flame and ash. That is what I used years ago for my model volcano.
     

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