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P6526

Sigma-Aldrich

Iron(III) pyrophosphate

soluble crystals

Synonym(s):

Diphosphoric acid iron(III) salt, Ferric pyrophosphate

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About This Item

Linear Formula:
Fe4(P2O7)3
CAS Number:
10058-44-3
Molecular Weight:
745.21
EC Number:
233-190-0
MDL number:
MFCD00016091
UNSPSC Code:
12352302
PubChem Substance ID:
57654547
NACRES:
NA.23

form

soluble crystals

Quality Level

200

composition

Iron content, 10.5-12.5%

concentration

10.5-12.5% (titration)

application(s)

battery manufacturing

SMILES string

[Fe+3].[Fe+3].[Fe+3].[Fe+3].[O-]P([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])([O-])=O

InChI

1S/4Fe.3H4O7P2/c;;;;3*1-8(2,3)7-9(4,5)6/h;;;;3*(H2,1,2,3)(H2,4,5,6)/q4*+3;;;/p-12

InChI key

CADNYOZXMIKYPR-UHFFFAOYSA-B

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General description

Ferric Phosphate is a tan or yellowish white odorless powder. It is insoluble in water and soluble in mineral acids. It can be prepared by reacting sodium pyrophosphate with ferric citrate. It shows good bioaccesibility.

Application

Iron(III) pyrophosphate can be used:
  • As a cathode material for rechargeable batteries such as Na-ion batteries.
  • To fabricate a hybrid overlayer on the surface of metal oxides to boostphotoelectrochemical solar water splitting reaction.

Storage Class Code

11 - 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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Michael B Zimmermann et al.
The British journal of nutrition, 105(8), 1245-1250 (2011-01-06)
Fe absorption from water-soluble forms of Fe is inversely proportional to Fe status in humans. Whether this is true for poorly soluble Fe compounds is uncertain. Our objectives were therefore (1) to compare the up-regulation of Fe absorption at low
Angela Fabiano et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 111, 425-431 (2017-10-23)
This paper presents a comparative evaluation of different oral ferric iron formulations for ability to retain Fe
Y Mikal van Leeuwen et al.
Journal of colloid and interface science, 381(1), 43-47 (2012-06-09)
The ionic strength of a solution decreases during the precipitation of an insoluble salt, which can cause an initially unstable colloidal system to stabilize during its formation. We show this effect in the precipitation and aging of colloidal iron(III) pyrophosphate
Maria Andersson et al.
The American journal of clinical nutrition, 92(5), 1094-1104 (2010-09-17)
Random serial sampling is widely used in population pharmacokinetic studies and may have advantages compared with conventional fixed time-point evaluation of iron fortification. Our objective was to validate random serial sampling to judge the efficacy of iron fortification of a
Lena Davidsson et al.
The American journal of clinical nutrition, 89(6), 1815-1820 (2009-05-01)
Non-water-soluble iron compounds have been reported to be less well absorbed than ferrous sulfate in young children, and concern has been raised about their usefulness as food fortificants. The objective was to evaluate the usefulness of ferrous fumarate and ferric
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