Educated Earth // Videos – Physics & Chemistry – The Amazing Pharaoh’s Serpent Reaction

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This visually stunning reaction showcases the decomposition of the chemical mercury thiocyanate (also known as mercuric sulphocyanate – Hg(SCN)2). While some cheap fireworks simulate this effect, you would be ill advised to try this particular experiment.

http://www.educatedearth.net/video.php?id=5270