Haber Process and NPK Fertilisers

Cards (8)

state the symbol equation for the haber process
N2 + 3H2 reversible arrow 2NH3
what are the main stages of the haber process
nitrogen from the air and hydrogen from natural gas
compressor
iron catalyst beds
cooling tank
liquid ammonia out
excess gases go back to the compressor
what are the conditions for the haber process
450 degrees
200 atmospheres
iron catalyst
what is a fertilizer
A formulation of ions to promote plant growth
What is NPK
nitrogen
phosphorus
potassium
what does an NPK fertiliser contain
Ammonium ions and nitrate ions
phosphate ions
potassium ions
all ions must be soluble
why can phosphate rock be used in fertiliser
It is insoluble in water
what are the reactions of phosphate rock
+nitric acid = phosphoric acid
+ sulfuric acid = single superphosphate
+ phosphoric acid = triple superphosphate