1550-44-3

Basic information

• Product Name: 2,2-DIFLUOROETHYL ACETATE
• Synonyms: 2,2-DIFLUOROETHYL ACETATE;2,2-Difluoroethyl acetate 97%;2,2-Difluoroethylacetate97%;2,2-difluoroethyl ethanoate;acetic acid 2,2-difluoroethyl ester
• CAS NO: 1550-44-3
• Molecular Formula: C₄H₆F₂O₂
• Molecular Weight: 124.09
• Mol File: 1550-44-3.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 105°C
• Flash Point: 22°C
• Appearance: /
• Density: 1,203 g/cm3
• Vapor Pressure: 322.306mmHg at 25°C
• Refractive Index: 1.352
• CAS DataBase Reference: 2,2-DIFLUOROETHYL ACETATE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2-DIFLUOROETHYL ACETATE(1550-44-3)
• EPA Substance Registry System: 2,2-DIFLUOROETHYL ACETATE(1550-44-3)

Safety Data

• Hazard Codes: F
• Statements: 10-36/37/38
• Safety Statements: 26-36/37/39
• RIDADR: 3272
• HazardClass: FLAMMABLE
• PackingGroup: II
• Hazardous Substances Data: 1550-44-3(Hazardous Substances Data)

Usage

General Description

2,2-Difluoroethyl Acetate, also known as DFEA, is a chemical compound whose molecular formula is C4H6F2O2. It belongs to the group of organic compounds known as carboxylic acid esters, which are derived from carboxylic acids. Notably, it contains two fluorine atoms, making it a key compound in fluorine chemistry. This chemical is used in a variety of applications, predominantly in the synthesis of pharmaceuticals and agrochemicals. Handling of 2,2-Difluoroethyl Acetate should include protective measures due to its potentially harmful effects, including skin, eye, and respiratory irritation.

Upstream product

• 75-36-5 acetyl chloride 
• 1426-06-8 difluoromethyl alcohol 
• 338-65-8 1-chloro-2,2-difluoroethane 
• 127-09-3 sodium acetate 
• 359-07-9 2-bromo-1,1-difluoroethane 
• 127-08-2 potassium acetate 

Downstream Products

• 359-13-7 difluoroethanol 

Relevant articles and documents

Synthetic method of 2,2-difluoroethyl acetate

The invention discloses a synthetic method of 2,2-difluoroethyl acetate, and relates to the technical field of battery electrolyte additives, and the synthetic method comprises the following steps: taking 2, 2-difluoroethanol and acetyl chloride, and under the action of an acid capturing agent, carrying out acylation reaction to obtain the 2,2-difluoroethyl acetate. Compared with the prior art, the synthesis method of the 2,2-difluoroethyl acetate has the advantages that the reaction process is milder and safer, and the product yield and the product purity in the production process are maximized by controlling the reaction conditions in each stage; the product yield is further improved by reasonably controlling the use amount of the reaction raw materials and the reaction process, the yield reaches 99.10% or above, the method is suitable for industrial production, and the purity reaches 99.5% or above.

NONAQUEOUS ELECTROLYTE COMPOSITIONS COMPRISING SILYL OXALATES

Disclosed herein are electrolyte compositions comprising a fluorinated solvent, at least one silyl oxalate represented by the formulas RR′Si(C2O4), wherein R and R′ are each the same or different from each other and independently selected from C1-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, or C6-C10 aryl radical, optionally comprising at least one substituent selected from halogen, hydroxyl, alkoxy, carbonyl, and carboxyl groups; and LiPF6. Also disclosed herein are electrolyte compositions comprising a fluorinated solvent and a lithium oxalato phosphate salt represented by the formula LiPF(6-2q)(C2O4)q, wherein q is 1, 2 or 3; wherein the oxalato phosphate salt comprises at least a portion that is derived from at least one silyl oxalate as defined herein. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.

NONAQUEOUS ELECTROLYTE COMPOSITIONS COMPRISING FLUORINATED SULFONES

Disclosed herein are electrolyte compositions comprising a fluorinated solvent, a fluorinated sulfone, at least one component selected from a borate salt, and/or an oxalate salt, and/or a fluorinated cyclic carbonate, and at least one electrolyte salt. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or combinations thereof. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.