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Merck

215406

Ammonium iron(II) sulfate hexahydrate

ACS reagent, 99%

Synonym(s):

Ammonium ferrous sulfate hexahydrate, Ammonium iron(II) sulfate, Mohr’s salt

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About This Item

Linear Formula:
(NH4)2Fe(SO4)2 · 6H2O
CAS Number:
Molecular Weight:
392.14
NACRES:
NB.24
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
233-151-8
MDL number:
Assay:
98.5-101.5%, 99%
Grade:
ACS reagent
Form:
powder or crystals
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grade

ACS reagent

Quality Level

assay

98.5-101.5%, 99%

form

powder or crystals

reaction suitability

reagent type: catalyst
core: iron

impurities

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

pH

3-5 (20 °C, 50 g/L)

mp

100 °C (dec.) (lit.)

anion traces

phosphate (PO43-): ≤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%

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

Application

Ammonium iron(II) sulfate hexahydrate can be used as a green catalyst in the:
  • Newman-Kwart rearrangement to synthesize functionalized thiophenols.
  • Oxidation of aromatic, aliphatic, and conjugated aldehydes to the corresponding carboxylic acids.
  • Synthesis of biscoumarins via condensation reaction.


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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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Metallization of biologically inspired silica nanotubes.
Jo W, et al.
Materials Science and Engineering, C, 32(8), 2426-2430 (2012)
Konstantinos Grintzalis et al.
Free radical biology & medicine, 59, 27-35 (2012-10-09)
A simple and sensitive method is presented for the simultaneous quantification (spectrophotometric and spectrofluorimetric) of the main lipid and protein peroxidation products after their initial fractionation: free malondialdehyde (FrMDA), protein-bound malondialdehyde (PrMDA), total hydroperoxides (LOOH), and protein hydroperoxides (PrOOH). FrMDA
The crystal structure of Tutton's salts. VI. Vanadium (II), iron (II) and cobalt (II) ammonium sulfate hexahydrates.
Montgomery H, et al.
Acta Crystallographica, 22(6), 775-780 (1967)