![]() | Hydrogen peroxide 85% decomposing Decomposition of HTP using silver in a brass screen as catalyst |
![]() | Elephant Toothpaste Here is a chemistry demo dubbed "Elephant Toothpaste". I like the controlled evolution of the foam coming from a 2 liter bottle better than from any other vessel. In a later video we'll show you how we got that 2-liter bottle to look more like a one liter bottle (notice the wrapper hanging loosely from the bottle). Technically speaking this is the catalytic and thermal decomposition of H2O2 to oxygen and water by iodide and heat evolution (boiling water). I want you to envision this as a molecular bubble wand. As the oxidation/decomposition is occurring oxygen is being formed and since it's a gas (at this temperature) it forms micro (possibly even nano) bubbles in the Dawn dishwashing liquid that has been added. Why are there so many? If you've never heard of Avogadros number, I'll briefly explain. There are 6.02 times 10 to the 23rd power atoms in an equivalent of every chemical. That's 602300000000000000000000 atoms. In this experiment I'd say we were at about 1/15 of that as we used about 10grams of iodide. The smoke you see is simply steam from boiling water. This reaction and the formation of water is exothermic (gives off heat), but the maximum temperature it can reach is 212F (100C). Oh well, enough splainin. I hope you enjoyed this video! |
![]() | Hydrogen peroxide "concentration" decomposition lab (1/2) This is a reaction that I recorded during a lab. The objective was to observe the reaction rate using many different factors. In this experiment my independent variable was concentration and the dependent was time. The experiment was at room temperature (about 70F). It is the chemical decomposition of 10ml of 6% concentration Hydrogen Peroxide (H2O2) combined with .50 grams of Manganese dioxide (MnO2) catalyst. The end result of this reaction is heat, Oxygen (O2) and water vapor (H2O). Please forgive the stutter; my mind wasn't in gear at the time. Enjoy! |
![]() | Hydrogen Peroxide Power A news report of a man who claims to have a patent on delivering hydrogen peroxide in an engine and welder |
![]() | The many Benefits of Hydrogen Peroxide and Oxygen Therapy Looking to get a brighter smile, and nice skin? Want to spend pennies instead of hundreds? CraigBrockie.com serves up the goods with a video on the many uses of Hydrogen Peroxide! |
![]() | Hydrogen Peroxide Hidrogen peroxide 73% decomposition with silver deposited in a brass screen |
![]() | Hydrogen peroxide and detergent On our last day at school, our chem teacher reacted hydrogen peroxide and detergent in a massive conical flask. Due to the peroxide being fresher than the teacher thought, the reaction was spectacular to say the least. |
![]() | Re: The many Benefits of Hydrogen Peroxide and Oxygen Therapy ORAL INGESTION OF H2O2 FOR MANY AND VARIED HEALTH BENEFITS |
![]() | Genie in the bottle Lecture Demonstrator James Maynard, UW Madison, demonstrates and explains the use of Manganese Dioxide to catalyze the decomposition of Hydrogen Peroxide. |
![]() | Hydrogen Peroxide Fountain Also known as Elephant's Toothpaste which is a great name for it. |
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