Titration using potassium manganate (VII) and acidified ethanedioate solution. At the start of the titration (left), the colour of the potassium manganate (VII) solution takes some time to disappear as Mn7+ ions are reduced to Mn2+ ions. The colour of the potassium manganate (VII) solution disappears more quickly (centre) as the Mn2+ ions increase in concentration and catalyse the reaction. At the end of the titration (right), there are no more ethanedioate ions left to react, so the remaining potassium manganate(VII) solution gives the mixture a pink colour. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Chillmaid, Martyn F. |
Bildgröße: | 4781 px × 5328 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |