NPK Fertilisers

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9 Terms

1
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What is an NPK fertiliser

Formulation of different salts

2
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Define formulation

Mixture of chemicals to produce a desired products

3
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Ammonia + Nitric Acid - NH3 + HNO3 (Haber Process)

Ammonium Nitrate - NH4NO3

4
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Potassium fertilisers - Mined

Potassium Chloride - KCl and Potassium Sulfate - K2SO4

5
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What happens to phosphorus fertilisers when mined from the ground

Chemically processed so they are soluble

6
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Phosphate Rock + Ammonia - HNO3

Phosphoric acid - H3PO4 + Calcium Nitrate - Ca(NO3)2

7
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Phosphoric Acid + Ammonia

Ammonium Phosphate

8
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Phosphoric Rock + Sulfuric Acid =

Calcium phosphate + Calcium Sulfate

9
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Phosphoric rock + Phosphoric acid

Triple super phosphate