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Silver mirror

The experience begins with the preparation of the complex diaminado of silver [Ag(NH__3_)2]+, known as the reagent of Tolens, from silver and ammonia nitrate. Later, added glucose that acts as a reducer, which allows the formation of a thin layer of metallic silver on the surface of the test tube, which agitated so that the dissolution is in contact with the entire surface of the tube of the essay that we want to metalizar.

Tubos de plata


This is the reaction that takes place:

CH2OH(CHOH)4COH + 2[Ag(NH3)2]+ + 3OH-->2Ag(s) + CH2OH(CHOH)4 COO¯ + 4NH3 + 2H2O

 

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Department of Inorganic Chemistry


Universidad de Alicante
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