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1.03792 Supelco

Ammonium iron(II) sulfate hexahydrate

for analysis EMSURE® ISO

Synonym: Ammonium iron(II) sulfate hexahydrate

  • CAS Number 7783-85-9

  • Empirical Formula (Hill Notation) H8FeN2O8S2 · 6H2O

  • Molecular Weight 392.14

  •  MDL number MFCD00150530

  •  EC Index Number 233-151-8

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Properties

Agency/Method   reag. ISO
Quality Level   300
assay   99.0-101.5% (manganometric)
form   solid
potency   3250 mg/kg LD50, oral (Rat)
pH   3-5 (20 °C, 50 g/L in H2O)
mp   39-41 °C (decomposition)
solubility   269 g/L
density   1.86 g/cm3 at 20 °C
bulk density   900 kg/m3
anion traces   chloride (Cl-): ≤0.001%
  phosphate (PO43-): ≤0.002%
cation traces   Ca: ≤ 0.002%
  Cu: ≤ 0.002%
  Fe3+: ≤ 0.02%
  K: ≤ 0.01%
  Mg: ≤ 0.01%
  Mn: ≤ 0.05%
  Na: ≤ 0.01%
  Pb: ≤ 0.001%
  Zn: ≤ 0.003%
InChI   1S/Fe.2H3N.2H2O4S.6H2O/c;;;2*1-5(2,3)4;;;;;;/h;2*1H3;2*(H2,1,2,3,4);6*1H2/q+3;;;;;;;;;;/p-2
InChI key   SHHFGSWBFZVUNE-UHFFFAOYSA-L
storage conditions   Store at +15°C to +25°C.

Description

Analysis Note

Assay (manganometric): 99.0 - 101.5 %
pH-value (5 %; water): 3.0 - 5.0
Chloride (Cl): ≤ 0.001 %
Phosphate (PO₄): ≤ 0.002 %
Iron(III)-salts (Fe³⁺): ≤ 0.02 %
Ca (Calcium): ≤ 0.002 %
Cu (Copper): ≤ 0.002 %
K (Potassium): ≤ 0.01 %
Mg (Magnesium): ≤ 0.01 %
Mn (Manganese): ≤ 0.05 %
Na (Sodium): ≤ 0.01 %
Pb (Lead): ≤ 0.001 %
Zn (Zinc): ≤ 0.003 %
Correspons to ISO

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