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322431

Sigma-Aldrich

Potassium pyrophosphate

97%

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Synonym(s):
Potassium diphosphate tetrabasic, Tetrapotassium diphosphate
Linear Formula:
K4P2O7
CAS Number:
Molecular Weight:
330.34
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

97%

form

solid

mp

1300 °C (lit.)

SMILES string

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

InChI

1S/4K.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

RYCLIXPGLDDLTM-UHFFFAOYSA-J

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This Item
79549660356P0662
vibrant-m

322431

Potassium pyrophosphate

-
vibrant-m

795496

Potassium phosphate dibasic

-
vibrant-m

60356

Potassium phosphate dibasic

Essential Grade
vibrant-m

P0662

Potassium phosphate monobasic

-
assay

97%

assay

≥98%

assay

≥99.0% (T)

assay

≥99.0%

form

solid

form

powder

form

powder or crystals

form

powder or crystals

mp

1300 °C (lit.)

mp

-

mp

-

mp

252.6 °C (lit.)

General description

Potassium pyrophosphate (K4P2O7) is a water soluble, buffering and chelating agent. It can also be used as an ionic dispersant to form a low viscous solution. It is a biocompatible and a non-toxic compound that is commonly used as a food additive.

Application

K4P2O7 can be used in the preparation of an electrolytic solution, which can further be used in the fabrication of lithium ion batteries and arrays of copper nanowires.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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High clay content nanocomposite hydrogels with surprising mechanical strength and interesting deswelling kinetics
Liu Y, et al.
Polymer, 47(1), 1-5 (2006)
Copper nanowire arrays surface wettability control using atomic layer deposition of TiO 2
Abdulagatov AI, et al.
Russian Journal of Applied Chemistry, 89(8), 1265-1273 (2016)
Development of a base set of toxicity tests using ultrafine TiO2 particles as a component of nanoparticle risk management
Warheit DB, et al.
Toxicology Letters, 171(3), 99-110 (2007)
Stable high areal capacity lithium-ion battery anodes based on three-dimensional Ni-Sn nanowire networks
Tian M, et al.
Journal of Power Sources, 211(32), 46-51 (2012)
Electrochemical exfoliation of graphite to produce graphene using tetrasodium pyrophosphate
Kumar MKP, et al.
Royal Society of Chemistry Advances, 5(32), 24846-24852 (2015)

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