Potassium permanganate (KMnO4) is a strong oxidizing agent and is reduced when it reacts. In this sequence a 3% solution of hydrogen peroxide (H2O2) in a pipette is added to a beaker containing potassium permanganate solution (circa 103M). First, at far left, violet Mn7+ is reduced to brown Mn4+ (MnO2). As more hydrogen peroxide is added, Mn4+ is reduced further to nearly colourless Mn2+ (noted colour changes from left to right). Some oxygen bubbles (O2) are also produced as a result of MnO2 acting as a catalyst for H2O2 decomposition. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 9100 px × 2741 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |