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Annex SPECIFICATIONS OF FERROUS AMMONIUM PHOSPHATE

United Kingdom

Original text. Later amendments are not shown.

Description

  • Ferrous ammonium phosphate is a grey/green fine powder, practically insoluble in water and soluble in dilute mineral acids.

    • CAS No

  • 10101-60-7

    • Chemical Formula

  • FeNH4PO4

    • Structural Formula
    • Chemical characteristics of ferrous ammonium phosphate
  • pH of 5 % suspension in water6,8 to 7,8

    Iron (total)

    Iron (II)

    Iron (III)

    not less than 28 %

    22 % to 30 % (w/w)

    not more than 7 % (w/w)

    Ammonia5 % to 9 % (w/w)
    Waternot more than 3 %