Litmus indicator. Litmus changes its colour depending on the pH of the solution. Here litmus indicator was added to two household solutions: vinegar (mostly diluted acetic acid, CH3COOH) and baking soda solution (sodium bicarbonate, NaHCO3). Vinegar is acidic and turns litmus pink/red. Baking soda is alkaline and turns litmus purple/violet. Shown are two beakers with vinegar and baking soda solutions as well as a bottle with litmus aqueous solution. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 5126 px × 3402 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |