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TFEC

TFEC structure

CAS No:
1513-87-7
Formula:
C5H4F6O3
Chemical Name:
TFEC
Synonyms:
TFEC;JACS-1513-87-7;bis(2,2,2-trifluoroethyl) carbonate;Bis(2,2,2-trifluoroethyl) Carbonate >;2,2,2-Trifluoroethanolcarbonic acid;tri (trifluoroethyl) carbonate;Ethanol, 2,2,2-trifluoro-, carbonate (2:1);Carbonic Acid Bis(2,2,2-trifluoroethyl) Ester
Categories:
Organic Chemistry > Coordination Complexes

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TFEC Basic Attributes

Molecular Weight：

226.07

Exact Mass：

226.00646296

Color/Form：

Colorless to Almost colorless

HScode：

2920901090

Characteristics

Density：

1.470±0.06 g/cm3(Predicted)

Boiling Point：

118°C(lit.)

Refractive Index：

1.3120 to 1.3160

Critical Temperature & Pressure：

Store at room temperature, keep dry and cool

Safety Information

Packing level：

Hazard category：

wgk germany：

WGK 3

RIDADR：

UN 3272 3/PG II

GHS Classification：

|Danger|H225 (50%): Highly Flammable liquid and vapor [Danger Flammable liquids]|P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, and P501|Aggregated GHS information provided by 2 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

TFEC Use and Manufacturing

Bis(2,2,2-trifluoroethyl) carbonate (DFDEC) is a highly effective electrolyte additive th at is widely used in the battery industry to enhance the performance and stability of lithium-ion batteries. Its remarkable thermal and electrochemical stability make it an excellent choice for use in high-temperature and high-voltage applications. Recent studies have also highlighted other benefits of DFDEC in battery applications. For instance, it has been found th at DFDEC can improve the cycle performance of lithium metal cells by forming a LiF-rich solid electrolyte interphase (SEI).[1,2] Additionally, flammability tests have shown th at electrolytes containing over 60% v/v of DFDEC do not catch fire, demonstrating its potential as a flame-retardant.[3] These findings highlight the versatility and importance of DFDEC in the development of safe and high-performance battery technologies.

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