FaceOfChemistry.com - 31-10-2010 at 07:15
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&...
![Crazy Halloween pumpkin 18.JPG - 78kB Crazy Halloween pumpkin 18.JPG - 78kB](http://www.sciencemadness.org/talk/files.php?pid=191650&aid=11931)
![Scary Halloween pumpkin 08.JPG - 259kB Scary Halloween pumpkin 08.JPG - 259kB](http://www.sciencemadness.org/talk/files.php?pid=191650&aid=11932)
Halloween pumpkins
FaceOfChemistry.com - 31-10-2010 at 07:17
More photos:
![Scary Halloween pumpkin 09.JPG - 274kB Scary Halloween pumpkin 09.JPG - 274kB](http://www.sciencemadness.org/talk/files.php?pid=191651&aid=11933)
![Scary Halloween pumpkin 10.JPG - 316kB Scary Halloween pumpkin 10.JPG - 316kB](http://www.sciencemadness.org/talk/files.php?pid=191651&aid=11934)
![Scary Halloween pumpkin 11.JPG - 247kB Scary Halloween pumpkin 11.JPG - 247kB](http://www.sciencemadness.org/talk/files.php?pid=191651&aid=11935)
psychokinetic - 31-10-2010 at 14:33
Har, the explosive pumpkin would be great for scaring people OFF MAH DANG LAWN.
madscientist - 31-10-2010 at 14:56
Almost looks like some kind of crazy pumpkin hairdo at the end.
peach - 1-11-2010 at 03:18
The Pharaohs snake is one very strange looking reaction.
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Picric-A - 1-11-2010 at 04:49
Whats the decomposition product of Mercury thiocyanate?
hissingnoise - 1-11-2010 at 05:16
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?
peach - 1-11-2010 at 05:52
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.