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935972

Sigma-Aldrich

Sodium hexafluorophosphate solution

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in ethylene carbonate, dimethylcarbonate, and ethylmethylcarbonate, 1.0 M NaPF6 in EC/DMC/EMC=1:1:1 (v/v/v), battery grade

Synonym(s):

1.0 M NaPF6 in EC/DMC/EMC

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About This Item

CAS Number:
21324-39-0
UNSPSC Code:
12352600

grade

battery grade

Quality Level

100

form

solution

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

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concentration

0.95-1.10 M (NaPF6)

impurities

≤100 ppm Acid
≤100.0 ppm H2O

application(s)

battery manufacturing

greener alternative category

Enabling

General description

Sodium hexafluorophosphate (NaPF6) solution in ethylene carbonate (EC), dimethylcarbonate (DMC), and ethylmethylcarbonate (EMC) is a clear solution of battery grade sodium hexafluorophosphate dissolved in a a ternary mixture of EC/DMC/EMC (1:1:1) (v/v/v). We offer this with a superior quality suitable for battery research with low water and acid impurities.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Click here for more information.

Application

The main application of 1.0 M NaPF6 in EC/DMC/EMC=1:1:1 (v/v/v) is as an electrolyte in sodium-ion batteries (NIBs). The solvent blend has a high dielectric constant, which allows for effective dissolution of the electrolyte salt and results in high ionic conductivity. The fraction of ethylene carbonate (EC) helps to form a stable, conductive solid electrolyte interphase (SEI) with many cathode anode materials. Ethyl methyl carbonate (EMC) and dimethyl carbonate (DMC) have lower viscosities and melting points than EC, and when mixed with EC result in an electrolyte with a good balance between desirable electrochemical properties, high dielectric constant, and low viscosity. This electrolyte has been shown to have good electrochemical performance even at low temperatures, making it suitable for use in cold environments.

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT RE 2 Oral

target_organs

Kidney

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

77.0 °F

flash_point_c

25 °C

Certificates of Analysis (COA)

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