How to remove ammonia from water
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How to remove ammonia from water in the laboratory. Or, without removing ammonia, how can the solution be made non-polar?
It’s easy in the laboratory: add an alkali to adjust the pH value and then introduce some air. Phosphoric acid and magnesium ions can also be added at pH 10–11 to form a precipitate.
In ammonia synthesis plants, the removal of ammonia from aqueous NH3 can be achieved using the stripping method. After adjusting the pH, steam is introduced at the bottom of the tower, while water enters from the top of the tower. It contains filler. This person has practical engineering experience.
In the laboratory, the ammonia can be absorbed using an alkaline solution, and then dried to remove water. The concentration of the alkaline solution should be chosen based on the amount of ammonia present.
I’d like to add one more point: I learned this during my first year in junior high school when studying chemistry – heating!