Phenolphthalein acid-base indicator. Phenolphthalein indicator changes its colour depending on the pH (hydrogen ion concentration) of the solution, it turns colourless in acidic solutions (left) and pink in basic (alkaline) solutions (right). | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4370 px × 4370 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |