Description

Fluoroethylene Carbonate CAS NO 114435-02-8 is a high-purity, specialty organic carbonate ester featuring a fluorine substituent. This compound is a critical functional additive and electrolyte solvent, prized for its ability to form stable, protective solid-electrolyte interphase (SEI) layers on electrode surfaces. It is an essential material for manufacturers and R&D teams in the advanced lithium-ion battery sector, particularly for enhancing the performance and longevity of high-energy-density anodes like silicon and lithium metal.

Application

• As a key electrolyte additive in lithium-ion batteries to improve cycle life and coulombic efficiency.
• For stabilizing the interface of silicon-based anodes, mitigating volume expansion issues.
• In the development of next-generation lithium metal batteries to suppress dendrite growth.
• As a co-solvent in high-voltage electrolyte formulations for cathode stability.
• Used in electrolyte R&D for electric vehicles (EVs) and energy storage systems (ESS).
• As a chemical intermediate in the synthesis of other fluorinated organic compounds.

Basic Information

Product Name	Fluoroethylene Carbonate
CAS No.	114435-02-8
Molecular Formula	C3H3FO3
Molecular Weight	106.05 g/mol
Synonyms	4-Fluoro-1,3-dioxolan-2-one; FEC; 4-Fluoro-2-oxo-1,3-dioxolane; Fluoro-ethylene carbonate; 1,3-Dioxolan-2-one, 4-fluoro-; Fluorinated Ethylene Carbonate; Electrolyte Additive FEC
EINECS	Contact for details

Quality Control

Our Fluoroethylene Carbonate is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity, essential for sensitive electrochemical applications. Product quality is verified through advanced analytical techniques including HPLC, GC, and NMR. A comprehensive Certificate of Analysis (COA) detailing purity, moisture content, and key impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.5%
Water Content (KF)	≤ 50 ppm
Acidity (Titration)	≤ 0.01%
Density (20°C)	~1.45 g/cm³
Refractive Index (n20D)	~1.415

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.