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            Fluoro Ethylene CarbonateFEC
            Time:2015-12-27 21:25:47    Hits

            Chemical nameFluoro Ethylene Carbonate

            4-Fluoro-1,3-dioxolan-2-one

            CAS NO114435-02-8

            FormulaC3H3FO3

            Molecular weight106.05

            Structure formula 

            Product Properties

            Fluoroethylene carbonate (FEC) is colorless transparent liquid over 25 with the molecular formula C3H3FO3 and the melting point 18~23. The boiling point of FEC is 212as the relative density is 1.454g/ml.

            Specifications and Quality Standards

            No.

            Items

            E-Grade

            1

            Appearance

            Colorless transparent liquid

            (25)

            2

            Purityby GC

            99.95%

            3

            Moisture

            20 mg/kg

            4

            Free AcidHF

            20 mg/kg

            5

            Chromaticity(APHA)

            10 Hazen

            6

            Metallon

            Na\K\Fe\Zn\Ni\Mg\Ca\Pb

            1 mg/kg

             

            Application

            FEC is the main electrolyte additive in lithium ion batteriesLIB. FEC enables the formation of passive solid electrolyte interphase layer. With compact construction without increasing electrical impedance, that SEI film has better performance in LIB, which can significantly improve the performance of the electrolyte under low temperature.

            Packaging and storage

            This product is packed in stainless steel barrels with quick joint (N2 pressure: 0.11~0.13MPa ), with packing specification 200kg/200L, 100kg/100L or 25kg/25L. It should be stored in a cool, dry and draughty warehouse.


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