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939900

Sigma-Aldrich

NaFSI electrolyte powder

new

anhydrous, battery grade, 99.9% trace metals basis

Synonym(s):

Sodium Bis(fluorosulfonyl)imide, Imidodisulfuryl fluoride sodium salt, Sodium bis(fluorosulfonyl)imide

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About This Item

Empirical Formula (Hill Notation):
F2NO4S2Na
CAS Number:
100669-96-3
Molecular Weight:
203.12
UNSPSC Code:
12352107

grade

battery grade

Quality Level

100

Assay

99.9% trace metals basis

form

powder

mol wt

203.3 g/mol

mp

109 °C

solubility

0.1 M carbonate: soluble (lit.)
soluble (ethers: soluble(lit.))
soluble (glymes: soluble(lit.))
water: very soluble (lit.)

density

2.4 g/cm3

application(s)

battery manufacturing

SMILES string

[N-](S(=O)(=O)F)S(=O)(=O)F.[Na+]

General description

Sodium bis(fluorosulfonyl)imide, abbreviated NaFSI, is a white, crystalline salt. It is hygroscopic and deliquescent and usually stored under inert atmosphere. NaFSI is soluble in water, carbonates (including dimethyl carbonate, diethyl carbonate, and propylene carbonate), glymes (including monoglyme, diglyme, and triglyme), dimethoxyethane, trimethyl phosphate, and bis(fluorosulfonyl)imide-based ionic liquids such as N-methyl-N-propylpyrrolidinium bis(fluorosulfonyl)imide ([C3mpyr]+FSI-) or N-butyl-N-methylpyrrolidinium ([C4mpyr]+FSI-). NaFSI melts at 109 °C.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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