Phenolphthalein indicator. Phenolphthalein indicator solution added to several test tubes containing sodium hydroxide solutions with varying pH values,left to right: pH = 8,9,10,11,12,13. Phenolphthalein changes its colour depending on the pH of the solution. In acidic solutions it is colourless while in basic solutions it turns into a pinkish violet (fuchsia) colour | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 5087 px × 3367 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|