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Merck
CN

FX0245

Ferrous Ammonium Sulfate, Hexahydrate

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Synonym(s):

Ferrous Ammonium Sulfate, Hexahydrate, Ammonium Iron(II) Sulfate, Hexahydrate, Ammonium Iron (II) Sulfate

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About This Item

Linear Formula:
Fe(NH4)2(SO4)2 · 6H2O
CAS Number:
UNSPSC Code:
12352302
EC Index Number:
233-151-8
MDL number:
Assay:
98.5-101.5%
Grade:
ACS reagent
Form:
crystals
Solubility:
269 g/L
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SMILES string

[Fe+3].[S](=O)(=O)([O-])[O-].[S](=O)(=O)([O-])[O-].[N+H4].[N+H4].O.O.O.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+3;;;;;;;;;;/p-2

InChI key

SHHFGSWBFZVUNE-UHFFFAOYSA-L

grade

ACS reagent

assay

98.5-101.5%

form

crystals

impurities

≤0.01% Insoluble matter

color

blue-green

pH

3-5 (20 °C, 50 g/L in H2O)

mp

39-41 °C (Elimination of water of crystallisation)

solubility

269 g/L

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%

shipped in

ambient

storage temp.

room temp

Quality Level

Related Categories

Analysis Note

Assay: 98.5-101.5%
Calcium (Ca): 0.005% max
Color: Blue-green (no yellow)
Copper (Cu): 0.003% max
Ferric iron (Fe+++): 0.01% max
Form: Crystals
Insoluble matter: 0.01% max
Magnesium (Mg): 0.002% max
Manganese (Mn): 0.01% max
Phosphate (PO4): 0.003% max
Potassium (K): 0.002% max
Sodium (Na): 0.02% max
Zinc (Zn): 0.003% max

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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