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Sigma-Aldrich

Potassium pyrophosphate

97%

Sinónimos:

Potassium diphosphate tetrabasic, Tetrapotassium diphosphate

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About This Item

Fórmula lineal:
K4P2O7
Número de CAS:
7320-34-5
Peso molecular:
330.34
Número CE:
230-785-7
Número MDL:
MFCD00011393
Código UNSPSC:
12352302
ID de la sustancia en PubChem:
24859317
NACRES:
NA.23
Ensayo:
97%
Formulario:
solid
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Nivel de calidad

200

Ensayo

97%

Formulario

solid

mp

1300 °C (lit.)

cadena SMILES

[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

Clave InChI

RYCLIXPGLDDLTM-UHFFFAOYSA-J

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Descripción general

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]

Aplicación

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]

Pictogramas

Exclamation mark
GHS07

Palabra de señalización

Warning

Frases de peligro

H319

Clasificaciones de peligro

Eye Irrit. 2

Código de clase de almacenamiento

13 - Non Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
MKCW4996
STBL4244
STBL0996
MKCT6226
STBK8586

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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)
Electrochemical exfoliation of graphite to produce graphene using tetrasodium pyrophosphate
Kumar MKP, et al.
Royal Society of Chemistry Advances, 5(32), 24846-24852 (2015)
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)
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Questions

1–2 of 2 Questions  

  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/449/386/product-dating-information-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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