Your post is good but why not use household ammonia? I have made many copper complexes using regular ammonia without any problems arising. Remember
to use a brand without many additives. If you need it to be more concentrated then you can dissolve ammonia gas into the household ammonia.
I do not have any experience generating ammonia by the reaction of sodium hydroxide and urea but I do recall that urea easily decomposes. According to
the CDC, "The substance decomposes on heating above melting point, producing toxic gases, and reacts violently with strong oxidants, nitrites,
inorganic chlorides, chlorites and perchlorates, causing fire and explosion." |