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29. INFLUENCE OF THE ENVIRONMENT ON THE NATURE OF REACTIONS.

Oxidation reactions - recovery can proceed in different environments: in acid, neutral and alkaline. Depending on Wednesday the reaction history between the same substances can change. Wednesday influences change of oxidation levels. Let's review example of influence of the environment on recovery MnO4-permanganate ion:

схема

Usually for creation in solution of acidic environment use sulphuric acid. Solutions of hydroxides of potassium or sodium are applied to creation of alkaline condition.
Let's review examples of course of reaction between Na2SO4 sodium sulfite (reducer) with KMnO4 potassium permanganate (oxidizer).

Reaction in acidic environment
СХЕМА
Reaction in the neutral environment
схема
Reaction in alkaline condition
схема

 


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