Iron test. Potassium thiocyanate solution (colourless) being added to a solution of iron (III) ions (yellow). As the potassium thiocyanate solution is added,a blood-red colour results. This colour change can be used to indicate the presence of iron (III) ions in an unknown solution | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Andrew Lambert Photography |
Taille de l’image : | 3595 px × 4887 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |