Silver mirror test

Silver mirror test

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Credit: SCIENCE PHOTO LIBRARY

Caption: Silver mirror test. This test is used to distinguish aldehydes from ketones. Tollen's reagent (ammoniacal silver nitrate) and ethanol are added to a solution. If the solution contains aldehydes, the ethanol reduces the silver ions to metallic silver, which deposits on the inside of the reaction vessel. The test tube can be placed in a beaker of warm water to speed up the reaction.

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Keywords: aldehyde, ammoniacal silver nitrate, analysis, analytical chemistry, black background, chemical, chemistry, close-up, detail, ethanol, experiment, identifying, ketone, lab, laboratory, laboratory equipment, metallic silver, positive result, reacting, reaction, reagents, school science, silver mirror test, silvering, studio shot, test tube, testing, tollen's reagent

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