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31111

Sigma-Aldrich

Ammonium iron(III) sulfate dodecahydrate

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.0-102.0%, crystalline, slightly violet

Synonym(s):

Ammonium ferric sulfate dodecahydrate

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About This Item

Linear Formula:
NH4Fe(SO4)2 · 12H2O
CAS Number:
7783-83-7
Molecular Weight:
482.19
EC Number:
233-382-4
MDL number:
MFCD00150004
UNSPSC Code:
12352302
PubChem Substance ID:
329753650

grade

ACS reagent
puriss. p.a.

agency

USP/NF
reag. ISO
reag. Ph. Eur.

assay

99.0-102.0%

form

crystalline

impurities

≤0.005% water-insoluble matter
≤0.01% insoluble matter in HCl

color

slightly violet

mp

39-41 °C (lit.)

solubility

H2O: in accordance 10 g/dL

anion traces

chloride (Cl-): ≤5 mg/kg
nitrate (NO3-): ≤100 mg/kg
phosphate (PO43-): ≤20 mg/kg

cation traces

Ca: ≤20 mg/kg
Cu: ≤10 mg/kg
Fe2+: ≤10 mg/kg
K: ≤50 mg/kg
Mg: ≤10 mg/kg
Mn: ≤50 mg/kg
Na: ≤100 mg/kg
Pb: ≤5 mg/kg
Zn: ≤10 mg/kg

storage temp.

2-8°C

SMILES string

N.O.O.O.O.O.O.O.O.O.O.O.O.[Fe+3].OS([O-])(=O)=O.[O-]S([O-])(=O)=O

InChI

1S/Fe.H3N.2H2O4S.12H2O/c;;2*1-5(2,3)4;;;;;;;;;;;;/h;1H3;2*(H2,1,2,3,4);12*1H2/q+3;;;;;;;;;;;;;;;/p-3

InChI key

LCPUDZUWZDSKMX-UHFFFAOYSA-K

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pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H318

Hazard Classifications

Eye Dam. 1

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCBS5564V

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Mossbauer-Effect Study of the Ferroelectric Transitions in Potassium Ferrocyanide Trihydrate and Ferric Ammonium Sulfate Dodecahydrate.
Gleason TG and Walker JC.
Physical Review, 188(2), 893-893 (1969)
Tomasz Kleszczewski et al.
Journal of pharmaceutical and biomedical analysis, 29(4), 755-759 (2002-07-03)
A method for spectrophotometric determination of L-ascorbic acid (vitamin C) in tissues by flow injection analysis is reported. The procedure is based on the oxidation of analyse with iron(III) and 2,2'-dipyridyl. Concentrations of vitamin C in the range of 0.5-20
Multi-pumping flow system for the determination, solid-phase extraction and speciation analysis of iron.
Pons C, et al.
Analytica Chimica Acta, 550(1), 33-39 (2005)
J G Reinhold et al.
The Journal of nutrition, 116(6), 1007-1017 (1986-06-01)
The effects of pH, ascorbate, citrate and dietary fiber on retention of ferrous and ferric iron by jejuno-ileal segments of rat intestine were examined in vivo. Iron was introduced in an isosmotic solution of sodium chloride and dextrose buffered by
Andrew J Ghio et al.
American journal of physiology. Lung cellular and molecular physiology, 283(3), L563-L572 (2002-08-10)
The iron chelator deferoxamine has been reported to inhibit both xanthine oxidase (XO) and xanthine dehydrogenase activity, but the relationship of this effect to the availability of iron in the cellular and tissue environment remains unexplored. XO and total xanthine
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