Sodium bis (trifluoromethyl sulfonyl) imide (C<sub>2</sub>F<sub>6</sub>NNaO<sub>4</sub>S<sub>2</sub>), 99% - MSE Supplies LLC

MSE PRO Sodium bis (trifluoromethyl sulfonyl) imide (NaTFSI, C2F6NNaO4S2), 99%

SKU: CM1029

  • $ 23995

NaTFSI (Sodium bis (trifluoromethyl sulfonyl) imide) is an electrolyte salt commonly used in battery systems, offering excellent thermal and chemical stability. Its purity level of up to 99% ensures consistent performance and provides an optimal environment for battery-power storage.

Sodium bis (trifluoromethyl sulfonyl) imide (NaTFSI, C2F6NNaO4S2), 99%

Sodium bis (trifluoromethyl sulfonyl) imide (NaTFSI, C2F6NNaO4S2is used as an electrolyte in batteries and fuel cells. It is also used as an ionic liquid and Lewis's acid.


Item Value
Product Name Sodium bis (trifluoromethyl sulfonyl) imide
Chemical Formula
  • NaTFSI
  • Sodium triflimide
  • Sodium trifluoromethan esulfonimide
  • CM1029: 5g
CAS# 91742-21-1
Molecular Weight 303.13
Appearance White Powder
Purity 99%
Water Solubility Soluble in water
Melting Point  257-258 ℃
Boiling Point 400 ℃ at 101.3 kPa
Density 2.15 g/cm3
Vapor Pressure 0 Pa at 25 ℃
Stability Hygroscopic


Shipping and handling: This material is classified as a hazmat and requires special packaging and shipping to comply with regulatory requirements. Please contact us for specific details with shipping and handling.


[1] An sodium bis (trifluoromethanesulfonyl) imide-based polymer electrolyte for solid-state sodium batteries. Acta Phys. Chim. Sin 34 (2018): 213-218.

[2] The reactivity of charged electrode materials with sodium bis (trifluoromethanesulfonyl) imide (NaTFSI) based-electrolyte at elevated temperatures. Journal of The Electrochemical Society 160.4 (2013): A607.

[3] SEI composition on hard carbon in Na-ion batteries after long cycling: influence of salts (NaPF6, NaTFSI) and additives (FEC, DMCF). Journal of The Electrochemical Society 167.7 (2020): 070526.