Skip to Content
MilliporeSigma
All Photos(3)

Key Documents

View All Documentation

322431

Sigma-Aldrich

Potassium pyrophosphate

97%

Synonym(s):

Potassium diphosphate tetrabasic, Tetrapotassium diphosphate

Sign Into View Organizational & Contract Pricing

Select a Size

25 G
$29.26
500 G
$47.10
2.5 KG
$112.00

$29.26

List Price$30.80

In StockDetails

Request a Bulk Order
All Photos(3)

Select a Size

Change View
25 G
$29.26
500 G
$47.10
2.5 KG
$112.00

About This Item

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

$29.26

List Price$30.80

In StockDetails

Request a Bulk Order

Quality Level

200

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

Looking for similar products? Visit Product Comparison Guide

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.[1][2][3] It is a biocompatible and a non-toxic compound that is commonly used as a food additive.[4]

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.[5][6][7]

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCW4996
STBL4244
STBL0996
MKCT6226
STBK8586

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
Pyrophosphate coupling with chelant-enhanced soil flushing of field contaminated soils for heavy metal extraction
Yan DYS and Lo IMC
Journal of Hazardous Materials, 199(3), 51-57 (2012)
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)
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)
View All Related Papers

Questions

1–2 of 2 Questions  

  1. 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

      Helpful?

  2. 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/449/386/product-dating-information-mk.pdf

      Helpful?

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service