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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
grade:
for analytical purposes
form:
soluble crystals

grade

for analytical purposes

form

soluble crystals

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 boost photo electrochemical 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

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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
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
Madhari S Radhika et al.
The American journal of clinical nutrition, 94(5), 1202-1210 (2011-09-24)
Micronized ferric pyrophosphate (MFPP) in extruded rice kernels mixed in a rice-based meal could be an effective strategy for improving iron status of children in India. The objective was to determine the impact of MFPP supplied through extruded rice kernels
Anna Christofides et al.
Maternal & child nutrition, 2(3), 169-180 (2006-08-03)
Home-fortification of complementary foods with micronutrients (including iron) as Sprinkles is a new strategy to control iron deficiency and anaemia in developing countries. However, the most effective dose and form of iron is not known. The purpose of this study
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