Base pH test. A universal indicator paper strip was dipped into 1M sodium hydroxide (NaOH). Its colour changed to dark blue indicating a strongly alkaline solution. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 3426 px × 5158 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |