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

Names and Identifiers

Name	4-Fluoro-1.3-dioxolan-2-one
Synonyms	FEC FloroEthylene carbonate Fluoroethylene Carbonate FLUOROETHYLENE CARBONATE 4-Fluoroethylene Carbonate 4-Fluoroethylene carbonate 4-FLUORO-1.3-DIOXALAN-2-ONE 4-Fluoro-1.3-dioxolan-2-one 4-Fluoro-1.3-Dioxalan-2-One 4-FLUORO-1.3-DIOXOLAN-2-ONE FLUOROETHYLENE CARBONATE (FEC) Fluoroethylene Carbonate (FEC) [(2R,3S,5S)-3-hydroxy-5-[(5S)-5-methyl-2.4-dioxo-1.3-diazinan-1-yl]oxolan-2-yl]methyl [hydroxy(phosphonooxy)phosphoryl] hydrogen phosphate
CAS
EINECS	483-360-5
InChI	InChI=1/C3H3FO3/c/h2H,1H2

Physico-chemical Properties

Molecular Formula	C3H3FO3
Molar Mass	106.05
Density	1.454
Melting Point	18-23 °C
Boling Point	212℃
Flash Point	>102°(216°F)
Water Solubility	Slightly miscible with water.
Vapor Presure	51Pa at 25℃
Appearance	Liquid
Color	Colorless
Storage Condition	2-8°C
Sensitive	Sensitive to heat
Refractive Index	1.3960 to 1.4000
MDL	MFCD06247543
Use	Usually used as an electrolyte additive in Lithium ion batteries. It enables the formation of thin, smooth and stable passive solid electrolyte interphase (SEI) layer, which is insoluble in the electrolyte, in turn increasing the cycling efficiecny a

Risk and Safety

Hazard Symbols	Xn – Harmful
Risk Codes	R22 – Harmful if swallowed R36/38 – Irritating to eyes and skin. R43 – May cause sensitization by skin contact R48/22 – Harmful danger of serious damage to health by prolonged exposure if swallowed.
Safety Description	S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 – Wear suitable protective clothing and gloves.
WGK Germany	1
TSCA	Yes
HS Code	29329990

Reference Information

LogP	-0.435 at 20.1℃
EPA chemical information	Information provided by: ofmpub.epa.gov (external link)
use	fluoroethylene carbonate is an organic solvent-based electronic chemical, which can be used in lithium ion battery electrolyte. lithium ion secondary batteries assembled with positive and negative plates and battery separators are mainly used in the field of battery material research.

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