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Merck
CN

322431

Potassium pyrophosphate

97%

Synonym(s):

Potassium diphosphate tetrabasic, Tetrapotassium diphosphate

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About This Item

Linear Formula:
K4P2O7
CAS Number:
7320-34-5
Molecular Weight:
330.34
NACRES:
NA.23
PubChem Substance ID:
24859317
UNSPSC Code:
12352302
EC Number:
230-785-7
MDL number:
MFCD00011393
Assay:
97%
Form:
solid
Solubility:
water: soluble

Key Documents

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InChI key

RYCLIXPGLDDLTM-UHFFFAOYSA-J

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

SMILES string

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

assay

97%

form

solid

reaction suitability

core: potassium

mp

1300 °C (lit.)

Quality Level

200

solubility

water: soluble

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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.

hcodes

H319

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB5698
MKCZ0257
MKCX4915
MKCW4996
STBL4244

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Abdulagatov AI, et al.
Russian Journal of Applied Chemistry, 89(8), 1265-1273 (2016)
Enhancing Ni-Sn nanowire lithium-ion anode performance by tailoring active/inactive material interfaces
Tian M, et al.
Journal of Power Sources, 196(23), 10207-10212 (2011)
Electrochemical exfoliation of graphite to produce graphene using tetrasodium pyrophosphate
Kumar MKP, et al.
Royal Society of Chemistry Advances, 5(32), 24846-24852 (2015)
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)
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