 | Fehling's Test for Reducing Sugars To download this video please go to http://www.downloadvideos.co.nr .Copper sulfate is mixed with a solution of potassium hydroxide and potassium sodium tartrate to form Fehling's reagent. The solution is heated and then sucrose is added to one container and glucose to the other. |
 | Reduction of Fehling's solution A movie depicting a reduction of Fehling's solution (a complex of copper II sulfate in alkaline sodium potassium tartrate solution) by glucose to form a precipitate of copper I oxide. Glucose is oxidized to gluconic acid. This reaction is used as a test for aliphatic aldehydes (e.g., formaldehyde, acetaldehde) and monosaccharides, e.g., glucose (which also contains aldehyde groups). |
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