The ammonia fountain is a classic demonstration used to observe the solubility of ammonia in water. Universal indicator is used to see the alkaline nature of the solution formed. read more
Ammonia solution is seen to be alkaline and various indicator colour changes can be demonstrated. A flask, fitted with a glass jet, is filled with dry ammonia. Injecting water into the flask dissolves the ammonia and causes a fountain via the jet. read more
This experiment allows us to prove the extremely high solubility of ammonia in water. A similar experiment is carried out for hydrogen chloride gas. The diagram explains enough about the set -up. read more
A fountain obtained with methylamine and water stained with thymol blue, will turn out just as well as an ammonia fountain. Nevertheless, besides ammonia and its close relatives, there are other gases that can be used for this experiment. read more