Chemical Chameleon Reaction

  Рет қаралды 641,776

Cienciabit: Science and Technology

Cienciabit: Science and Technology

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The chemical chameleon is a series of reactions of reduction of potassium permanganate into potassium manganate and into manganese dioxide sequentially.
I will mix potassium permanganate with an aqueous solution of sugar and sodium hydroxide. Each one of the resultant products has a different color and this makes that this redox (reduction-oxidation) experiment very attractive to see.
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Today I will make a reaction known as chemical chameleon and for this
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I'll wear protection goggles and gloves.
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This is a redox reaction in which I will use
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potassium permanganate, that is a powerful oxidant and sugar this is a reductor.
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In basic medium. For this I will put sodium hydroxide or caustic soda in the water
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Put a teaspoon of sodium hydroxide ...
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Three teaspoons of sugar and add water.
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To dissolve it well I will use this magnetic stirrer. I put the magnet ...
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On the other hand, I'll put a little amount of potassium permanganate in this beaker.
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A few crystals and add a little water.
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Notice that we obtain a purple solution.
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In alkaline aqueous medium and in the presence of a reducing agent such as sugar, potassium permanganate with
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intense violet color is reduced to potassium manganate green
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and subsequently manganese dioxide yellowish brown.
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And before concluding I want to send a best regards to Román Gómez Marín from Guadalajara in Mexico;
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Mauricio Ortiz from Asuncion in Paraguay
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and Charles Palacios of El Salvador.
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See you Monday at Cienciabit.

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