Phenolphthalein is used as a single indicator in acid-base titrations. At left it is shown in a base solution and is a pink colour. Adding a dilute acid turns it gradually colourless. At pH 9.3 (ight) the colour is barely perceivable and by pH 8 it is colourless | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Chillmaid, Martyn F. |
Bildgröße: | 5726 px × 5367 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |