Ammonia is added to solutions of cobalt, nickel, and copper 2+ cations. First formation of the hydroxide precipitate is seen, then of the ammonia complex. Pour 0.1M solutions of Cu2+, Co2+, and Ni2+ ...

the high level of ammonia is affecting the production of the Wazirabad water treatment plant by 25-50%. Officials said the areas that might be affected include Defence Colony, CGO Complex ...