Description

Ethyl 2,2,2-trifluoroethyl carbonate (CAS No. 156783-96-9) is a high-purity fluorinated carbonate ester with the molecular formula C₅H₇F₃O₃. This specialized chemical is designed for advanced applications in lithium-ion battery electrolytes, where it serves as a critical additive to enhance performance and safety. Its unique trifluoroethyl group contributes to improved thermal stability and electrochemical properties, making it ideal for high-energy-density battery systems.

Key Features:

• Molecular Weight: 172.10 g/mol
• High purity grade (≥98%) for battery applications
• Fluorinated structure enhances electrolyte stability
• Low moisture content (<50 ppm)
• Compatible with various lithium salts and carbonate solvents

Packaged under inert atmosphere to maintain product integrity, this compound is particularly valuable for researchers developing next-generation battery technologies that require improved cycle life and safety characteristics.

Properties

• CAS Number: 156783-96-9
• Complexity: 131
• IUPAC Name: ethyl 2,2,2-trifluoroethyl carbonate
• InChI: InChI=1S/C5H7F3O3/c1-2-10-4(9)11-3-5(6,7)8/h2-3H2,1H3
• InChI Key: NIQAXIMIQJNOKY-UHFFFAOYSA-N
• Exact Mass: 172.03472857
• Molecular Formula: C5H7F3O3
• Molecular Weight: 172.10
• SMILES: CCOC(=O)OCC(F)(F)F
• Topological: 35.5
• Monoisotopic Mass: 172.03472857
• Synonyms: 156783-96-9, ethyl 2,2,2-trifluoroethyl carbonate, ethyl (2,2,2-trifluoroethyl) carbonate, DTXSID001291519, DTXCID001722108, 820-662-1, Carbonic acid, ethyl 2,2,2-trifluoroethyl ester, ethyl(2,2,2-trifluoroethyl)carbonate, MFCD28054294, CF3CH2OCO2C2H5, SCHEMBL575206, SCHEMBL698632, SCHEMBL698633, VFQTZBPGSSTGQI-UHFFFAOYSA-N, AKOS037646201, Bthyl(2,2,2-trifluoroethyl)carbonate, AS-67262, DB-429879, CS-0196827, D93608

Application

Ethyl 2,2,2-trifluoroethyl carbonate is primarily used as a performance-enhancing additive in lithium-ion battery electrolytes. It significantly improves the thermal stability of electrolyte formulations, raising the ignition point for enhanced safety. The compound contributes to the formation of more stable solid-electrolyte interphase (SEI) layers on electrode surfaces, thereby improving battery cyclability. Its fluorinated structure helps mitigate gas generation during cycling, particularly in high-voltage battery systems. Researchers value this additive for developing safer, longer-lasting energy storage solutions.

Safety and Hazards

GHS Hazard Statements

• H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]

Precautionary Statements

• P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501

Hazard Classes and Categories

• Flam. Liq. 3 (100%)

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