Description: Ammonia, from concentrated ammonium hydroxide, oxidizes on the surface of hot platinum in the presence of air. Since the reaction is exothermic, the platinum glows red, and this can be seen in a dark room.
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Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year or vol: 2 page: 214
Keywords: Ammonia, Oxidation, Catalysis, Ostwald Process