Testing solution for pH. Universal indicator changes its colour depending on the pH of the solution. Shown here is a universal indicator paper strip testing bleach for pH. The strip colour (grey/green) indicates that the bleach is a base (alkaline) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source |
Bildgröße: | 3456 px × 5184 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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