Blood and hydrogen peroxide

Hydrogen peroxide is produced in many reactions of oxygen in the blood. Since it’s toxic, the body has developed a great antidote. This is called catalase and is contained in the blood. You can do a nice experiment with it. Safety note: Hydrogen peroxide is explosive in high concentrations and when heated. Plus it’s corrosive.… Continue reading Blood and hydrogen peroxide

Blue Bottle Reaction

Blue Bottle Reaction

An amazing reaction that can do it in home with household chemicals. The main ingredient methylene blue can be bought from aquarium shops. Key Takeaways Methylene blue is a medication and dye. Also used in aquariums for prevention of fungal infection. It is a safe chemical(low concentrations). Sodium hydroxide is corrosive. Be careful when handing… Continue reading Blue Bottle Reaction

Fluorescent Tornado

Key Takeaways Fluorescein is a dark red solid but when dropped in water, the solution takes on a bright, vibrant green color.  By using a magnetic stirrer, a strong downward force is applied to the dye. This inhibits the dye from spreading, creating a tornado-like look Equipment & Chemicals Beaker (any size) Fluorescein disodium salt… Continue reading Fluorescent Tornado

How to make Singlet Oxygen

Key Takeaways Singlet oxygen is a special excited version of normal molecular oxygen. In solution, two singlet oxygen molecules crash into each other and release a flash of light which we see as a red glow. Outside of this reaction, singlet oxygen is something that’s pretty pervasive in the natural world. Lots of compounds when… Continue reading How to make Singlet Oxygen

Dissolve Cotton

Cellulose is immune to many well-known solvents like acetone or diluted acids. Using Schweizer’s Reagent we will be able to dissolve and reform Cellulose.  Key Takeaways Schweizer’s reagent is the chemical complex tetraamminediaquacopper dihydroxide, [Cu(NH3)4(H2O)2](OH)2 Schweizer’s reagent forms a cellulose-copper complex, which is soluble in water Acids will destroy the complex and release cellulose again What chemicals will… Continue reading Dissolve Cotton

Mercury Thiocyanate Serpent

How to make the Pharoah’s Serpent (Mercury (II) Thiocyanate). Mercury (II) thiocyanate is made using potassium thiocyanate, mercury and concentrated nitric acid. How to perform the Pharaoh’s Serpent This is a simple firework demonstration. All you need to do is ignite a small pile of mercury(II) thiocyanate. Mercury thiocyanate is an insoluble white solid which can be… Continue reading Mercury Thiocyanate Serpent

How to Make Slime with Borax and Glue

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Slime is super fun to play with – and it is not even hard to make. Here’s how: Key Takeaways Most types of slime are also examples of polymers. Polymers are molecules made by linking together chains of subunits. The slime formation is a reaction between PVA (polyvinyl alcohol) and boric acid Equipment & Chemicals White… Continue reading How to Make Slime with Borax and Glue

Dyeing wool with Indigo

Indigo dyeing is challenging because the dye is not soluble in water.  Key Takeaways As the dye is not water-soluble in water, it first has to be reduced to a water-soluble form The reduced form is also called “white indigo” or “leuco-indigo” After removing the dyed cloth from the dyeing solution, it quickly turns blue… Continue reading Dyeing wool with Indigo

Fluorescent Slime

Fluorescent Slime glowing under UV light

Slime is super fun to play with, but with just one key ingredient you can make it glow like crazy! Here is what you need:  Key Takeaways Most types of slime are also examples of polymers. Polymers are molecules made by linking together chains of subunits. Slime becomes fluorescent, when a fluorescent dye, like rhodamine or… Continue reading Fluorescent Slime

Iodine Clock Experiment

The classic iodine clock reaction demonstrates the properties of chemical kinetics through its mesmerizing change in color, and it is sure to fascinate you and perhaps your audience. Key Takeaways The blue-black color observed in Parts I and II occurs as a result of two separate reactions In the presence of starch, iodine forms the… Continue reading Iodine Clock Experiment