Ok, I've been doing a bit of research and found a few things.
Ammonia can do some pretty cool stuff.
Add it to copper sulfate and you will get Tetramminecopper(II) sulfate [Cu(NH3)4]SO4. This stuff is dark blue and can dissolve cellulose and is one method of making rayon.
Also you can make nitric acid by heating the ammonia and inserting a glowing hot platinium wire in the resulting gas. This acts as a catalyst and produces nitrogen dioxide which you then bubble through water to get nitric acid. The thing with this is apparently you can use a copper wire as the catalyst instead of the platnium, Yay!