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Merck
CN

936065

Sigma-Aldrich

Magnesium bis(trifluoromethylsulfonyl)imide

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≥99.5% trace metals basis, anhydrous, battery grade

Synonym(s):

Magnesium bis(trifluoromethanesulfonimide), Magnesium triflimide, Mg(TFSI)2

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About This Item

Empirical Formula (Hill Notation):
C4F12MgN2O8S4
CAS Number:
133395-16-1
Molecular Weight:
584.60
MDL number:
MFCD14156020
UNSPSC Code:
12352104
Assay:
≥99.5% trace metals basis
Grade:
battery grade
Form:
powder

Key Documents

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grade

battery grade

Quality Level

100

Assay

≥99.5% trace metals basis

form

powder

greener alternative product characteristics

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impurities

≤5000 ppm trace metals

mp

362-364 °C

application(s)

battery manufacturing

greener alternative category

Enabling

SMILES string

FC(F)(F)S(=O)(=O)N([Mg]N(S(=O)(=O)C(F)(F)F)S(=O)(=O)C(F)(F)F)S(=O)(=O)C(F)(F)F

InChI

1S/2C2F6NO4S2.Mg/c2*3-1(4,5)14(10,11)9-15(12,13)2(6,7)8;/q2*-1;+2

InChI key

DMFBPGIDUUNBRU-UHFFFAOYSA-N

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General description

Magnesium bis(trifluoromethanesulfonyl)imide, abbreviated Mg(TFSI)2, is a white colored hygroscopic salt. Mg(TFSI)2 is soluble in water, carbonates, glymes, ethers, and ionic liquids.
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Application

Mg(TFSI)2 has high solubility in polar aprotic solvents, such as acetonitrile and propylene carbonate, and it exhibits good thermal stability and electrochemical stability. These properties make it a popular choice for use as an electrolyte in high-performance batteries, particularly in the field of Mg-ion batteries. In addition to its use as an electrolyte in batteries, Mg(TFSI)2 also has applications in other electrochemical devices, such as supercapacitors and electrochemical devices. It is often used in combination with other electrolytes, additives, and solvents to form complex electrolyte formulations with tailored properties and performance characteristics.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

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Magnesium(II) Bis(trifluoromethane sulfonyl) Imide-Based Electrolytes with Wide Electrochemical Windows for Rechargeable Magnesium Batteries
Ha Young S, et al.
ACS Applied Materials & Interfaces, 6, 4063?4073-4063?4073 (2014)
Reversible Electrochemical Interface of Mg Metal and Conventional Electrolyte Enabled by Intermediate Adsorption
Wang H, et al.
ACS Energy Letters, 5, 200?206-200?206 (2019)
Alkaline-earth bis(trifluoromethanesulfonimide) additives for efficient and stable perovskite solar cells
Pham N D, et al
Nano Energy, 69, 104412-104412 (2020)

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