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Four Colour Change Reaction Chameleon Chemical Reaction
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=OKurcQt3ZOU
Chameleon Chemical Reaction • Introduction: • Chameleon chemical reaction is redox reaction which show a beautiful colour change. During the reaction, the colour is change from 1. violet 2. green 3. yellow 4. red. • Procedure: • 1.Prepare a breaker with 500ml warm water • 2.Start the magnetic stirrer • 3.Add 6 grams sodium hydroxide • 4.Add 9 grams sucrose (sugar) • 5.Prepare the potassium permanganate solution by adding 30mg of potassium permanganate into 30ml of water • 6.Add potassium permanganate solution into the breaker and watch the colour change • Principal: • Permanganate MnO4 is reduced by sucrose under alkaline environment. • During the reaction, KMnO4(violet) is reduced to K2MnO4(green), then it further reduced to MnO2 (brown/yellow) • Notes: • 1.Sodium hydroxide is corrosive, please be careful when you use it • 2.Magnetic stirrer is not a must but it will mixed the solution faster • 3.If more sucrose is added, the colour change will be faster • 4. If more potassium permanganate is added, the reaction will start with dark violet and it is not easily to see the colour change • 5.If less potassium permanganate is added, the final colour may be yellow but not red. • #science #chemicalreaction #chemical #scienceproject #sodiumhydroxide #chameleon #kmno4 #colorchange #awesome #interesting
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