Grape juice indicator. Purple grape juice changes its colour depending on the pH of the solution. Here grape juice was added to vinegar (mostly diluted acetic acid, CH3COOH). Vinegar is acidic and turns grape juice pink/red. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 5098 px × 3405 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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