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 an acidic solution (0.01 M hydrochloric acid, HCl, left) and an alkaline solution (0.01 M sodium hydroxide, NaOH, right). | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / SCIENCE SOURCE / Turtle Rock Scientific |
Taille de l’image : | 5138 px × 3417 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |