Using the search engine should have found this for you
Post 201981 (missing)
(lugh: "Cyanide Synthesis", Chemicals & Equipment):
The preparation of Ammonia from ammoniacal compounds:
When ammonia gas is required for the laboratory, it may be obtained by heating an intimate mixture of a commercial ammonium chloride or ammonium sulfate with twice it’s weight of quicklime or slaked lime. Ammonia combines with most of the normal drying agents, a tower of quicklime (CaO) is generally employed. Bunsen used potassium hydroxide [Pogg. Ann. 46, 102 (1839)] Glass is liable to break from the condensed steam, copper, steel or iron heating vessels are preferable. A modified stainless steel pressure cooker would probably be the easiest means for generating ammonia gas.
Alum and lye will work also, but of course they are more expensive than fertilizer and lime. Believe it or not, the server doesn't have infinite space for these repeated requests for the same information. When using the search engine more effectively is endlessly repeated to the newbees, the responses aren't really a matter of rudeness (though it may seem that way sometimes), it's a matter of whether we will continue to have the Hive
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