934003

Methyl (2,2,2-trifluoroethyl) carbonate

≥98%, anhydrous, battery grade

• Synonym(s): Carbonic Acid Methyl 2,2,2-Trifluoroethyl Ester, FEMC
• Empirical Formula (Hill Notation): C₄H₅F₃O₃
• CAS Number: 156783-95-8
• Molecular Weight: 158.08
• MDL number: MFCD28054295
• UNSPSC Code: 12352100
• PubChem Substance ID: 17761042
• NACRES: NA.21

Properties

• grade: battery grade
• Quality Level: 100
• assay: ≥98%
• form: liquid
• greener alternative product characteristics: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• impurities: ≤250 ppm HF; ≤300 ppm H₂O
• bp: 57-59 °C/120 mmHg; 90 °C (lit.)
• density: 1.34 g/mL (lit.)
• application(s): battery manufacturing
• greener alternative category: Enabling

Description

General description

Methyl (2,2,2-trifluoroethyl) carbonate (FEMC), ≥99%, battery grade is one kind of fluorinated linear carbonate. It comes with very low water content (≤ 300.0 ppm) and low impurity of HF (≤ 250.0 ppm) which is ideal for battery research

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Application

Battery-grade methyl (2,2,2-trifluoroethyl) carbonate (FEMC) is an effective additive for improving the performance and stability of lithium-ion batteries. Its outstanding thermal and electrochemical stability makes it a reliable option for high-temperature and high-voltage battery applications. FEMC has been shown to improve battery life, enhance energy density, and increase cycling stability. As an electrolyte additive in lithium-ion batteries (LIBs), FEMC plays an important role in forming a stable solid electrolyte interphase (SEI) and effective passivation of the cathode surfaces, resulting in enhanced discharge capacity and cyclability. Even the addition of 5 wt % of FEMC was found to be very effective in forming a stable SEI layer and protecting the surface of the cathode. FEMC′s high performance makes it an attractive choice for battery manufacturers looking to create safe and efficient battery products.

Safety Information

• pictograms: GHS02,GHS07
• signalword: Warning
• hcodes: H226,H315,H319,H335
• pcodes: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: 100.4 °F
• flash_point_c: 38 °C