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Silver mirror test

Silver mirror test

C010/9640

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Credit

SCIENCE PHOTO LIBRARY 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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Model release not required. Property release not required.

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