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Make Silicon Metal using a Thermite including Sand



Make Silicon Metal using a Thermite including Sand

Mr Home Scientist shows us how to Make Silicon Metal using a Thermite including Sand. If you haven’t seen the destructive power of thermite before have a look at this video where some is used to kill a hard drive. If you intend to play with the stuff be very careful and only use it in an environment where there isn’t much around that can’t burn, a kitchen sink would be a bad choice. You can see the nice looking  silicon metal at the end of the video which is the result of this burn. Good thing Youtube doesn’t have smell-o-vision since this substance would not smell good!

“The ideal ratio for this type of thermite is 1.67:1 SiO2:Al, but here I use a 9:10:12 mix of SiO2:Al:S (by weight). The ideal composition of just sand and aluminum is very difficult to ignite, so the sulfur is needed for a side reaction with the extra aluminum that provides the heat to drive the real reaction.”

Via Hacked Gadgets, Published: 2012.06.22


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http://hackedgadgets.com/2012/06/20/make-silicon-metal-using-a-thermite-including-sand/