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P8010

Sigma-Aldrich

Sodium pyrophosphate tetrabasic

≥95%

Synonym(s):

Sodium diphosphate tetrabasic, Tetrasodium pyrophosphate

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About This Item

Linear Formula:
Na4P2O7
CAS Number:
7722-88-5
Molecular Weight:
265.90
EC Number:
231-767-1
MDL number:
MFCD00003513
UNSPSC Code:
12352302
PubChem Substance ID:
57654562
NACRES:
NA.23

Assay

≥95%

form

powder

density

2.53 g/mL at 25 °C (lit.)

SMILES string

[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O

InChI

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

InChI key

FQENQNTWSFEDLI-UHFFFAOYSA-J

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General description

Sodium pyrophosphate tetrabasic (Na4P2O7) is a non-toxic and biocompatible compound used as an electroactive media for exfoliation of the surface coating. It is also be used as an additive in the food industry.

Application

Na4P2O7 can be used as an inorganic additive to improve the stability and electrochemical performance of redox flow batteries.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H318

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

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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Effect of inorganic additive sodium pyrophosphate tetrabasic on positive electrolytes for a vanadium redox flow battery.
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