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P6526

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:
Molecular Weight:
745.21
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
233-190-0
MDL number:
Form:
soluble crystals
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form

soluble crystals

Quality Segment

composition

Iron content, 10.5-12.5%

reaction suitability

core: iron

concentration

10.5-12.5% (titration)

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

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.[1]

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.

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This Item
F6129F5879157740
form

soluble crystals

form

powder

form

powder

form

powder

Quality Level

200

Quality Level

300

Quality Level

200

Quality Level

200

concentration

10.5-12.5% (titration)

concentration

-

concentration

-

concentration

-

composition

Iron content, 10.5-12.5%

composition

Fe, 16.5-18.5%

composition

Iron, 16.5-18.5%

composition

-

reaction suitability

core: iron

reaction suitability

core: iron

reaction suitability

-

reaction suitability

-


Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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