Fertilisers Flashcards
What are the essential elements
Nitrogen, potassium and phosphorus
What are the properties of ammonia
It is soluble, pungent and alkali
How are fertilisers generally made
Neutralisation reactions then evaporation
What is the Haber process
The industrial process for the manufacture of ammonia
What is the equation for the production of ammonia
Iron catalyst
N + 3H ——-> 2NH
2 2. <—— 3
500*C
What does ———> Mean
<———
The reaction is reversible
What happens to the hydrogen and nitrogen that are left over
They are recycled
What kind of catalyst is used in the haber process
Iron
What is the Ostwald process
The catalytic oxidation of ammonia to produce nitric acid
What is the equation for the Ostwald process
Platinum
Catalyst
Ammonia +oxygen+water ———> nitric acid
