The Big Bang Theory

Season 3 Episode 9

The Vengeance Formulation

16
Aired Thursday 8:00 PM Nov 23, 2009 on CBS

Trivia

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  • Trivia

    • The foam-forming chemical reaction that Sheldon uses to revenge Kripke is a famous experiment known as "Elephant toothpaste". It can be performed premixing concentratedhydrogen peroxideand a liquid detergent (Sheldonuses dish soap), and then mixing the above with a catalyst (Sheldon uses saturatedsodium iodide solution) that causes rapid decomposition of hydrogen peroxide. The decomposition produces large amount of oxygen and heat; foams are formed due to the liquid detergent and the released oxygen, while the heat causes prominent expansion of the foams.

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