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Silver mirror test

Silver mirror test

C029/1101

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Credit

MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY

Caption

Silver mirror test with Tollens' reagent. When a few drops of an aldehyde solution are added to a clear solution of Tollens' reagent a precipitate start to form. Gradually it darkens and then silver coats the test tube with a mirror surface. The test differentiates between aldose and ketose sugars. Tollen's reagent is made from diluteÂÂ sodium hydroxideÂÂ added aqueousÂÂ silver nitrate and then ammonia is added to the resulting solution.

Release details

Model release not required. Property release not required.

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