pH indicators. Several indicators are added to acidic, neutral and alkaline solutions in a multiwell plate. The solutions are: 0.1 M hydrochloric acid (top row), neutral (pH=7) buffer (middle row), and 0.1 M sodium hydroxide. The indicators are, left to right columns: universal indicator, phenolphthalein, bromocresol purple, methyl orange. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 5184 px × 3456 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |