Nitrite solution essays & examples

To calculate the chastity of commercial nitrite

Target: The purpose of this kind of experiment is usually to check the purity of commercial nitrite by titration. Theory: Sodium nitrite (commercial nitrite) solution is oxidized by potassium permanganate to nitrate: 2MnO4- + 6H+ + 5NO2- –>2Mn2+ 5NO3- +3H2O As potassium permanganate itself changes colour in this reaction, thus no sign is required. Nevertheless […]

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