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Oxidation of An Organic Compound

Oxidation of An Organic Compound. A liquid is added to a small pile of substance. After a brief time a large puff of smoke and violet flames are produced . Purpose. To observe the oxidation of an organic compound by an inorganic oxidizing agent. Demonstration.

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Oxidation of An Organic Compound

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  1. Oxidation of An Organic Compound A liquid is added to a small pile of substance. After a brief time a large puff of smoke and violet flames are produced

  2. Purpose • To observe the oxidation of an organic compound by an inorganic oxidizing agent

  3. Demonstration • The reaction had a short induction time • The reaction was exothermic • The “smoke” was the manganese(III) oxide product • Potassium produced the violet flame

  4. Concepts 1. Organic Compounds 2. Inorganic Compounds 3. Oxidizing and Reducing Agents

  5. C C C 1. Organic Compounds • Organic compounds are compounds that contain primarily the element carbon • In this demonstration glycerine is the organic compound, C3H8O3 • Since all the carbons will be oxidized in this demonstration the oxidation is said to be non-selective H H H H H OH OH OH

  6. 2. Inorganic Compounds • Inorganic compounds contain elements other than carbon • In this demonstration potassium permanganate is the inorganic compound KMnO4 is made out of two ions, a cation (K+) and an anion (MnO4-) O + K O O Mn O

  7. 3. Oxidizing and Reducing Agents Reducing agent Oxidizing Agent KMnO4 glycerine Substance now oxidized Substance now reduced CO2 Mn2O3

  8. Conclusions • An organic compounds may be oxidized to carbon dioxide with an inorganic oxidizing agent such as potassium permanganate • Heat was liberated in the course of an oxidation reactions—this means the reaction is exothermic • The organic compound was oxidized while the inorganic substance was simultaneously reduced

  9. Comments • Organic substances such as wood, paper, and gasoline undergo oxidation reactions when they burn • In oxidation reactions • carbon is converted to carbon dioxide • hydrogen is converted to water

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