Oxidation of alcohols. Oxidation of a primary and secondary alcohols 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 two test tubes each containing 6.5 mL of ethanol (left, C2H5OH) and isopropanol (right, C3H7OH). Ethanol is a primary alcohol and isopropanol is a secondary alcohol. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 3375 px × 5106 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |