Description

4-Fluoro-1,3-dioxolan-2-one (Fluoroethylene Carbonate) is a high-purity, fluorinated cyclic carbonate ester with the molecular formula C₃H₃FO₃ (CAS No. 114435-02-8). This specialized organic compound is widely utilized as a key electrolyte additive in advanced lithium-ion battery systems, where it enhances electrode stability and cycling performance. The presence of a fluorine substituent on the carbonate ring structure imparts unique electrochemical properties, including improved SEI (Solid Electrolyte Interphase) formation on anode surfaces. Our product is synthesized under stringent quality control measures to ensure ≥99% purity (GC), with low levels of moisture and impurities that could compromise battery performance. Available in research quantities or bulk orders, this compound is supplied in sealed, moisture-resistant packaging under inert atmosphere to maintain stability.

Key specifications include: Molecular Weight: 106.05 g/mol, Density: ~1.45 g/cm³, Melting Point: 18-22°C, Boiling Point: 230-235°C. Safety data includes GHS classifications for skin and eye irritation (Category 2).

Properties

• CAS Number: 114435-02-8
• Complexity: 92.2
• IUPAC Name: 4-fluoro-1,3-dioxolan-2-one
• InChI: InChI=1S/C3H3FO3/c4-2-1-6-3(5)7-2/h2H,1H2
• InChI Key: SBLRHMKNNHXPHG-UHFFFAOYSA-N
• Exact Mass: 106.00662212
• Molecular Formula: C3H3FO3
• Molecular Weight: 106.05
• SMILES: C1C(OC(=O)O1)F
• Topological: 35.5
• Monoisotopic Mass: 106.00662212
• Physical Description: Liquid
• Synonyms: 4-fluoro-1,3-dioxolan-2-one, 114435-02-8, Fluoroethylene carbonate, 1,3-Dioxolan-2-one, 4-fluoro-, DTXSID20888867, DTXCID801028138, 483-360-5, 601-313-0, MFCD06247543, Fluoroethylene carbonate, 99%, C3H3FO3, 4-Fluoro-2-oxo-1,3-dioxolane, Fluoro ethylene carbonate, SCHEMBL33933, FEC, Lithium Ion Battery Grade, SBLRHMKNNHXPHG-UHFFFAOYSA-N, FD2018, AKOS005063553, FF33428, AS-19415, SY017141, DB-001294, CS-0155468, F0731, NS00077886, EN300-243587

Application

4-Fluoro-1,3-dioxolan-2-one serves as a critical performance-enhancing additive (typically 2-10% by weight) in lithium-ion battery electrolytes, where it preferentially decomposes to form a stable, fluorine-rich SEI layer on graphite anodes. This additive significantly improves battery cycle life, especially at high voltages or elevated temperatures, by suppressing electrolyte decomposition and gas generation. Recent research indicates particular benefits in silicon-containing anode systems where conventional carbonate electrolytes show poor stability. The compound also finds emerging applications in next-generation battery chemistries including lithium metal and sodium-ion systems.

Safety and Hazards

GHS Hazard Statements

• H302 (90.7%): Harmful if swallowed [Warning Acute toxicity, oral]
• H315 (90.7%): Causes skin irritation [Warning Skin corrosion/irritation]
• H317 (90.7%): May cause an allergic skin reaction [Warning Sensitization, Skin]
• H319 (90.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statements

• P261, P264, P264+P265, P270, P272, P280, P301+P317, P302+P352, P305+P351+P338, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, and P501

Hazard Classes and Categories

• Acute Tox. 4 (98.6%)
• Skin Irrit. 2 (98.6%)
• Skin Sens. 1 (97.2%)
• Eye Irrit. 2 (98.6%)
• STOT RE 1 (87.5%)

If you are interested or have any questions, please contact us at support@atomfair.com

Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.