Formula for ozone and chemical manufacture

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Most people only know ozone as a gas in the stratosphere. But very few people know what chemical formula this substance has, what properties it has and that it can also be manufactured artificially. Learn more about this connection.

Ozone can be created by lightning.
Ozone can be created by lightning.

What you need:

  • dilute sulfuric acid
  • Potassium permanganate
  • Beaker
  • Glass rod
  • water
  • Protective clothing (coat, goggles, gloves, hair band)
  • deduction

Chemical formula and properties

  • Ozone has the chemical formula O3. This means that three oxygen atoms are bound together. This is why this compound is also called tri-oxygen.
  • Ozone is an unstable, colorless to slightly bluish gas, which has a strong oxidizing effect. Therefore it has an irritating effect on the respiratory tract.
  • From -110.5 ° C this compound is present as a blue liquid, which solidifies to a black solid at -192.7 ° C. In every aggregate state, the molecule has an angular spatial structure.
  • The general reaction to ozone always proceeds according to the following formula:
    O + O2 → O3. This means that a free oxygen radical forms a bond with an oxygen molecule.
  • An oxygen radical can result from high electrical voltage, such as that produced by lightning. Another option is photo dissociation. Here, an oxygen molecule is split into radicals by high-energy light. Close to the earth, an oxygen radical is often generated by the UV-induced cleavage of nitrogen dioxide (NO2) free. This also creates nitric oxide.
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Experiment instructions for the representation of ozone

Ozone should only be produced as a by-product in the laboratory. Thus, in this experiment, too, it only appears as part of the air mixture.

  1. Prepare for your experiment by putting on protective clothing. Next, put all the materials in a hood and turn it on.
  2. Make a potassium permanganate solution with water in a beaker. Stir everything with the glass rod until no more solid is visible.
  3. Then add the diluted sulfuric acid while stirring. When the reaction occurs, not only is oxygen produced, but small amounts of ozone are also released.

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