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31110

Sigma-Aldrich

Ammonium iron(II) sulfate hexahydrate

puriss. p.a., reag. ISO, reag. Ph. Eur., ≥99% (manganometric)

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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
UNSPSC Code:
12352300
PubChem Substance ID:
24858837

Agency

reag. ISO
reag. Ph. Eur.

grade

puriss. p.a.

Assay

≥99% (manganometric)

shelf life

Shelf life is limited

pH

3-5 (20 °C, 5%)

mp

100 °C (dec.) (lit.)

anion traces

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

cation traces

Ca: ≤20 mg/kg
Cu: ≤20 mg/kg
Fe3+: ≤200 mg/kg
K: ≤100 mg/kg
Mg: ≤100 mg/kg
Mn: ≤500 mg/kg
Na: ≤100 mg/kg
Pb: ≤10 mg/kg
Zn: ≤30 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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Packaging

bottled under inert gas

Caution

tends to oxidation by air

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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