Tuesday 30 December 2014

How do you describe the process of catalytic oxidation of ammonia?

Understand the process of Catalytic oxidation of ammonia. Click on the link to Watch the VIDEO explanation: Watch Video


In the presence of platinum at 800 °C ammonia reacts oxygen to form nitric oxide which can be used as a starting substance for the preparation of nitric oxide. This is an industrial process the principle for which can be demonstrated in laboratory. The apparatus required for the laboratory demonstration of this process is shown here. The platinum coil is heated at 800 °C till it becomes white hot. Then ammonia and oxygen are passed through the combustion tube. Under these conditions ammonia reacts with oxygen to form nitric oxide and water vapour. As nitric oxide and nitrogen monoxide comes out in the air it cools down and combines with the oxygen of air to form reddish brown nitrogen dioxide. This NO2 is used to prepare Nitric Acid in presence of water and oxygen as per the equation shown here.

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