Making ammonia?

[Theophrastus]

An interesting thought, has recently occured to me, an idea of how to synthesize ammonia, by means of two salts I had in my possession, Ammonium Chloride, and Calcium Hydroxide, my proposition, is to create ammonia, by heating the two salts to the necessary degree, and thus, a reaction like the one below would ensue:

 

2NH4Cl + Ca(OH)2 > 2NH3 + CaCl2 + H2O

 

I know that ammonia has a high solubility in water, and thus, I could perform the reaction in an erlenmeyer flask, with a holey stopper, where a glass tube would be inserted, and the ammonia, thus bubbled into water, forming NH4OH (Ammonia dissolved in water)

However I am confused. Is a reaction like this really ethical? And if so, what degree of heating (activation energy) is required? Should the reaction be emersed in an aqueous solution, or can it be performed without this? And finally, if the setup above is proved impractical, is there any other way to safely generate ammonia, using basic chemicals?

[John Cuthber]

That's a pretty much standard way of making ammonia in the lab. It works just fine.