10.4.8

NPK Fertilisers - P-containing Compound

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Phosphorus-Containing Compounds in Fertilisers

Phosphate rock is a source of insoluble phosphorus that is obtained by mining. Useful soluble products can be obtained by treating the rock with acids:

Illustrative background for Phosphate rock + nitric acidIllustrative background for Phosphate rock + nitric acid ?? "content

Phosphate rock + nitric acid

  • Phosphate rock + nitric acid → phosphoric acid + calcium nitrate
Illustrative background for Phosphate rock + sulfuric acidIllustrative background for Phosphate rock + sulfuric acid ?? "content

Phosphate rock + sulfuric acid

  • Phosphate rock + sulfuric acid → single superphosphate
    • Single superphosphate is a mixture of calcium sulfate and calcium phosphate.
Illustrative background for Phosphate rock + phosphoric acidIllustrative background for Phosphate rock + phosphoric acid ?? "content

Phosphate rock + phosphoric acid

  • Phosphate rock + phosphoric acid → triple superphosphate
    • Triple superphosphate is also known as calcium phosphate.

Jump to other topics

1Atomic Structure

2Chemical Bonding

3Quantitative Chemistry

4Chemical Changes

5Energy Changes

6The Rate & Extent of Chemical Change

7Organic Chemistry

8Chemical Analysis

9Chemistry of the Atmosphere

10Using Resources

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