Methyl red indicator. Methyl red indicator changes its colour depending on the pH of the solution, it is red below 4.4 and yellow above 6.2. Here methyl red is added to beakers with different solutions. Left to right: acidic (0.01 M hydrochloric acid, HCl), neutral (pH=7 buffer solution), alkaline (0.01 M sodium hydroxide, NaOH). | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / SCIENCE SOURCE / Turtle Rock Scientific |
Taille de l’image : | 5166 px × 3436 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |