topic 10 - using resources (10. NPK fertilisers) Flashcards
1
Q
what are NPK fertilizers
A
formulation of nitrogen phosphorus and potassium
2
Q
how do you get the nitrogen compound in ferilisers
A
using the ammonia in the Haber process
reacting ammonia with nitric acid forming ammonia nitrate a common compound in ferilisers
3
Q
how is ammonia nitrate produced in industry
A
ammonia gas added directly to giant vats containing highly concentrated nitric acid
4
Q
how is ammonia nitrate produced in a lab
A
produced by titration and crystallization