FaceOfChemistry.com
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Create crazy Halloween pumpkins
Hi experimenters! I'm posting my chemistry project on Halloween. So, here is the procedure:
1. Prepare and cut your pumpkin.
2. Place inside candle and light it.
3. Fold aluminum foil and place it on the top of pumpkin.
4. Add ammonium dichromate (for first project) and light it.
4. Add mercury (II) thiocyanate (for second project) and light it.
Videos on youtube:
1. http://www.youtube.com/watch?v=6Xscg_SKXkE&feature=mfu_i...
2. http://www.youtube.com/watch?feature=player_profilepage&...
        
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FaceOfChemistry.com
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Halloween pumpkins
More photos:
  
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psychokinetic
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Har, the explosive pumpkin would be great for scaring people OFF MAH DANG LAWN.
“If Edison had a needle to find in a haystack, he would proceed at once with the diligence of the bee to examine straw after straw until he found
the object of his search.
I was a sorry witness of such doings, knowing that a little theory and calculation would have saved him ninety per cent of his labor.”
-Tesla
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madscientist
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Almost looks like some kind of crazy pumpkin hairdo at the end.
I weep at the sight of flaming acetic anhydride.
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peach
Bon Vivant
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The Pharaohs snake is one very strange looking reaction.
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value="http://www.youtube.com/v/B5QAZPctnXk?fs=1&hl=en_GB"></param><param name="allowFullScreen"
value="true"></param><param name="allowscriptaccess" value="always"></param><embed
src="http://www.youtube.com/v/B5QAZPctnXk?fs=1&hl=en_GB" type="application/x-shockwave-flash" allowscriptaccess="always"
allowfullscreen="true" width="480" height="385"></embed></object>
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Picric-A
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Whats the decomposition product of Mercury thiocyanate?
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hissingnoise
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The "snakes" (Pharaoh's Serpents) are composed mostly of paracyanogen and mercuric sulphide.
The reaction itself produces some mercury vapour so it isn't exactly child-friendly?
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peach
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I thought that as well, when I saw kits for kids featuring rocks that 'come alive' when ignited.
People spend thousands of pounds neutralizing mercury risks and arguing over the hazards, then hand their kids a not very educational toy composed
mainly of mercury compounds.
It's a reversible equation, running backwards in this case.
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