Isopropanol oxidation, 3 of 3
Numéro d’image : 12635667
| Isopropanol oxidation, 3 of 3. Oxidation of a secondary alcohol (isopropanol, C3H7OH) by potassium dichromate (VI) (K2Cr2O7). In the process chromium is reduced from +6 oxidation state to +3 oxidation state. This is physically observed as a colour change from orange to green to blue. Here 0.4 mL of 0.23M solution of potassium dichromate acidified with sulfuric acid (H2SO4) was added to a test tube with 6.5 mL of isopropanol. The reaction rate was slow, Photo 1 was taken at the start, Photo 2 - after 1 hour and Photo 3 - after 9.5 hours. A test tube with 0.25 M solution of potassium dichromate (VI) (left, orange) is included as a reference. | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Giphotostock |
| Taille de l’image : | 3391 px × 5142 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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