topic 10 - using resources (10. NPK fertilisers) Flashcards

1
Q

what are NPK fertilizers

A

formulation of nitrogen phosphorus and potassium

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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

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3
Q

how is ammonia nitrate produced in industry

A

ammonia gas added directly to giant vats containing highly concentrated nitric acid

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4
Q

how is ammonia nitrate produced in a lab

A

produced by titration and crystallization

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