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Properties
of
ammonia
Colourless and pungent gas
Less dense than air
Highly soluble in water
Density : 0.68
Melts at -77.7 C
Boils at -33.35 C
video
At its boiling point and at
1 atmosphere
pressure
Dissolve in water
Turns moist red litmus paper to
blue
Neutralise acids
Produce alkaline solution
pH value :
9-10
Make ammonium
salt
NH3 (g) + H2SO4 (aq) (NH4)2SO4 (aq)
NH3 (g) + HNO3 (aq) NH4NO3 (aq)
Ammonia + Sulphuric acid ammonium sulphate
Ammonia + Nitric acid ammonium nitrate
Reacts with metallic ions
Form metallic hydroxides
Except Na , K and Ca2+++
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