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936022

Sigma-Aldrich

Sodium hexafluorophosphate

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99.9% trace metals basis, anhydrous, battery grade

Synonyme(s) :

NaPF6, Sodium hexafluorophosphate(v)

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About This Item

Formule linéaire :
NaPF6
Numéro CAS:
Poids moléculaire :
167.95
Numéro MDL:
Code UNSPSC :
12352104

Qualité

battery grade

Niveau de qualité

Pureté

99.9% trace metals basis

Forme

white powder

Caractéristiques du produit alternatif plus écologique

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Impuretés

≤100 ppm Cl
≤100 ppm Sulfate
≤1500 ppm trace metals

Pf

>200 °C (lit.)

Densité

2.369 g/mL at 25 °C (lit.)
2.369 g/mL

Application(s)

battery manufacturing

Autre catégorie plus écologique

Chaîne SMILES 

[Na+].F[P-](F)(F)(F)(F)F

InChI

1S/F6P.Na/c1-7(2,3,4,5)6;/q-1;+1

Clé InChI

KMADQUOCJBLXRP-UHFFFAOYSA-N

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Description générale

Sodium hexafluorophosphate is a white powder and is soluble in water and polar organic solvents, including many of the carbonates and ethers commonly used in liquid battery electrolytes. Our battery grade NaPF6 meets both high level of purity and low moisture to ensure reliable and consistent performance for battery research.
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Application

Battery grade sodium hexafluorophosphate (NaPF6) is a reliable precursor salt for sodium ion batteries (NIBs). NaPF6 is commonly used as the source of sodium ions in liquid electrolytes due to its excellent properties including high solubility in organic solvents, high anodic electrochemical stability, and ability to form fluoride-rich solid electrolyte interphases (SEI) Often NaPF6 is used in research to design electrolytes that enhance the energy/power density or cycle life of sodium-ion batteries. For example, studies have shown that NaPF6-based electrolytes often offer the best performance, especially in conjunction with additives like FEC Additionally, NaPF6 is widely used because it is compatible with most battery materials including sodium metal, hard carbon, most oxide and phosphate cathode materials, as well as copper and aluminum current collectors. As a result, NaPF6-based electrolytes are the go-to for sodium-ion battery research and development.

Pictogrammes

CorrosionExclamation mark

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B

Code de la classe de stockage

8A - Combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Comparison of Ionic Transport Properties of Non-Aqueous Lithium and Sodium Hexafluorophosphate Electrolytes
Landesfeind J, et al.
Journal of the Electrochemical Society, 168 (2021)
SEI Composition on Hard Carbon in Na-Ion Batteries After Long Cycling: Influence of Salts (NaPF6, NaTFSI) and Additives (FEC, DMCF)
Fondard J, et al.
Journal of the Electrochemical Society, 167, 070526-070526 (2020)
Impact of the electrolyte salt anion on the solid electrolyte interphase formation in sodium ion batteries
Eshetu G G, et al.
Nano Energy, 55, 327-340 (2019)

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