Universal indicator. Universal indicator changes its colour depending on the pH of the solution. Here a pipette is used to add universal indicator to a beaker with an alkaline solution (0.01M potassium hydroxide, KOH, pH=12). The solution turns blue. Out-of-focus molecular model and beakers with coloured chemicals are in the background. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source / Turtle Rock Scientific |
Bildgröße: | 5056 px × 3398 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |