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09719

Sigma-Aldrich

Ammonium iron(II) sulfate hexahydrate

BioUltra, ≥99.0% (RT)

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Synonym(s):
Ammonium ferrous sulfate hexahydrate, Ammonium iron(II) sulfate, Mohr’s salt
Linear Formula:
(NH4)2Fe(SO4)2 · 6H2O
CAS Number:
7783-85-9
Molecular Weight:
392.14
EC Number:
233-151-8
MDL number:
MFCD00150530
PubChem Substance ID:
329748808
NACRES:
NA.25

product line

BioUltra

Quality Level

100

Assay

≥99.0% (RT)

impurities

insoluble matter, passes filter test

pH

2.5-4.0 (25 °C, 0.5 M in H2O)

mp

100 °C (dec.) (lit.)

solubility

H2O: 0.5 M at 20 °C, clear, faintly yellow-green

anion traces

chloride (Cl-): ≤10 mg/kg
phosphate (PO43-): ≤20 mg/kg

cation traces

Cd: ≤5 mg/kg
Co: ≤50 mg/kg
Cr: ≤50 mg/kg
Cu: ≤5 mg/kg
Fe3+: ≤50 mg/kg
K: ≤50 mg/kg
Mg: ≤100 mg/kg
Mn: ≤500 mg/kg
Na: ≤50 mg/kg
Ni: ≤100 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

N.N.O.O.O.O.O.O.[Fe++].OS([O-])(=O)=O.OS([O-])(=O)=O

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+2;;;;;;;;;;/p-2

InChI key

MQLVWQSVRZVNIP-UHFFFAOYSA-L

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This Item
1.03792215406203505
Ammonium iron(II) sulfate hexahydrate BioUltra, ≥99.0% (RT)

Sigma-Aldrich

09719

Ammonium iron(II) sulfate hexahydrate

Ammonium iron(II) sulfate hexahydrate for analysis EMSURE® ISO

Supelco

1.03792

Ammonium iron(II) sulfate hexahydrate

Ammonium iron(II) sulfate hexahydrate ACS reagent, 99%

Sigma-Aldrich

215406

Ammonium iron(II) sulfate hexahydrate

Ammonium iron(II) sulfate hexahydrate 99.997% trace metals basis

Sigma-Aldrich

203505

Ammonium iron(II) sulfate hexahydrate

mp

100 °C (dec.) (lit.)

mp

39-41 °C (decomposition)

mp

100 °C (dec.) (lit.)

mp

100 °C (dec.) (lit.)

cation traces

Cd: ≤5 mg/kg, Co: ≤50 mg/kg, Cr: ≤50 mg/kg, Cu: ≤5 mg/kg, Fe3+: ≤50 mg/kg, K: ≤50 mg/kg, Mg: ≤100 mg/kg, Mn: ≤500 mg/kg, Na: ≤50 mg/kg, Ni: ≤100 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

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%

cation traces

Ca: 0.005%, Cu: ≤0.003%, Fe3+: ≤0.01%, K: 0.002%, Mg: 0.002%, Mn: ≤0.01%, Na: 0.02%, Zn: ≤0.003%

cation traces

-

Quality Level

100

Quality Level

300

Quality Level

-

Quality Level

-

product line

BioUltra

product line

EMSURE®

product line

-

product line

-

impurities

insoluble matter, passes filter test

impurities

-

impurities

≤0.01% insolubles, ≤0.05% Not NH4OH pptd.

impurities

≤35.0 ppm Trace Metal Analysis

Application

Ammonium iron(II) sulfate hexahydrate has been used in a study to assess the catalytic effect of different forms of iron in purification of single-walled carbon nanotubes. Ammonium iron(II) sulfate hexahydrate has also been used in a study to determine trace amounts of Se(IV) in seawater.
In culture media for the detection of sulfate-reducing bacteria;

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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