Page 43 - Curriculum Visions Dynamic Book

 Manganese oxide, potassium nitrate and potassium hydroxide at the start of the demonstration.
oxidising agent: a substance that removes electrons from another
substance (and therefore is itself reduced).
The crucible is placed on pipe clay triangle designed to withstand the high temperature required for the mixture to react.
Potassium nitrate powder
Potassium hydroxide pellet
Black manganese oxide
Tripod
 Potassium manganate, a deep green compound, is produced after heating and stirring.
Glass stirring rod
Bunsen burner used to supply heat
The preparation of potassium permanganate Black manganese oxide powder is mixed with potassium nitrate and pellets of solid potassium hydroxide. Heated and stirred, they produce potassium manganate. When acidified and dried, this produces potassium permanganate.
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