1691-13-0

Basic information

• Product Name: 1,2-DIFLUOROETHYLENE
• Synonyms: FC-1132;1,2-DIFLUOROETHYLENE;1,2-Difluoroethylene(FC-1132)95%;1,2-fluoroethene;1,2-DIFLUOROETHENE;Vinylene difluoride
• CAS NO: 1691-13-0
• Molecular Formula: C₂H₂F₂
• Molecular Weight: 64.03
• EINECS: 216-886-9
• Mol File: 1691-13-0.mol

Chemical Properties

• Boiling Point: -28
• Appearance: /
• Density: 0.969g/cm³
• Vapor Pressure: 5880mmHg at 25°C
• Refractive Index: 1.282
• CAS DataBase Reference: 1,2-DIFLUOROETHYLENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-DIFLUOROETHYLENE(1691-13-0)
• EPA Substance Registry System: 1,2-DIFLUOROETHYLENE(1691-13-0)

Safety Data

• Hazardous Substances Data: 1691-13-0(Hazardous Substances Data)

Usage

Uses

Used in Polymer Production:
1,2-Difluoroethylene is used as a monomer for the production of poly(vinylidene fluoride), a high-performance thermoplastic. This polymer is valued for its excellent resistance to chemicals, heat, and weathering, making it suitable for various applications in industries such as automotive, aerospace, and electronics.
Used in Refrigerant Industry:
1,2-Difluoroethylene is employed as a refrigerant due to its unique properties, offering an alternative to traditional refrigerants in various cooling systems.
Used in Fluorinated Compounds Manufacturing:
In the chemical industry, 1,2-difluoroethylene is used in the manufacturing of fluorinated compounds, which have a wide range of applications in different sectors, including pharmaceuticals, agrochemicals, and electronics. These compounds are known for their stability, reactivity, and unique properties that make them valuable in various chemical processes and products.
Safety Precautions:
It is crucial to handle and store 1,2-difluoroethylene with caution due to its highly flammable nature and potential health risks. Exposure to this compound can cause irritation to the respiratory tract and other adverse health effects. Proper safety measures, including proper ventilation, personal protective equipment, and adherence to safety guidelines, should be implemented to minimize risks during its use and storage.

InChI:InChI=1/C2H2F2/c3-1-2-4/h1-2H

Upstream product

• 430-90-0 1-Bromo-1,2,2-trifluoroethane 
• 79-38-9 Chlorotrifluoroethylene 
• 79-35-6 1,1'-dichloro-2,2'-difluoroethene 
• 430-66-0 1,1,2-Trifluoroethan 
• 96503-03-6 (Z/E)-1,2-difluoro-1-(triethylsilyl)ethylene 
• 359-11-5 1,1,2-trifluoroethylene 
• 598-88-9 1,2-dichloro-1,2-difluoroethene 
• 593-53-3 Methyl fluoride 
• 74-86-2 acetylene 
• 338-65-8 1-chloro-2,2-difluoroethane 
• 1623-05-8 perfluoro(propyl vinyl ether) 
• 34557-54-5 methane 
• 353-59-3 halon-1211 
• 75-46-7 trifluoromethan 

Downstream Products

• 431-06-1 1,2-difluoro-1,2-dichloroethene 
• 594-27-4 tetramethylstannane 
• 391257-53-7 potassium cis-, trans-chlorodifluoroethen-1-yltrifluoroborate 
• 359-04-6 1-chloro-1,2-difluoroethene 
• 76-12-0 CFC-112a 

Relevant articles and documents

Anomalous elimination of HCl from 2-chloro-1,1-difluoroethane. Likely involvement of a 1,2-FCl interchange mechanism

A novel 1,2-FCl interchange mechanism is proposed to be involved in the unexpected thermal conversion of CH2ClCHF2 to 1,2-difluoroethylene.

Reactions of photogenerated fluorine atoms with molecules trapped in solid argon 4.* spectroscopic characteristics of β-c2h2f. radicals generated in reactions of mobile f atoms with c2h2 molecules tra

Reactions of mobile fluorine atoms with C2H2, C2D2, and C2HD molecules in solid argon were studied by ESR and IR spectroscopic techniques. Highly resolved ESR spectra of the stabilized radicals CHF=s

Vibrationally excited populations from IR-multiphoton absorption. II. Infrared fluorescence measurements

Infrared emission spectra were obtained for 1,1,2-trifluoroethane (TFE) excited by infrared multiphoton absorption (1079.85 cm-1).The emission features show that the HF reaction product is formed in vibrational states up to about v = 3.Furthermore, emission attributed to F-CC-H was observed near 3320 cm-1, indicating that the difluoroethylene primary products of TFE decomposition undergo secondary photolysis; since the difluoroethylene products at room temperature do not absorb laser light, they must be formed vibrationally excited.The emission from the C-H stretch modes of TFE was readily identified near 2980 cm-1 and the emission intensity was obtained as a function of laser fluence.These data are in excellent agreement with predictions based on the theoretical expression for fluorescence intensity and the reconstructed populations determined by the Master Equation calculations described in the preceding paper.These results provide additional support for the accuracy of the reconstructed population distributions and for the theory relating infrared fluorescence intensity to total vibrational energy in polyatomic molecules.

Vibrationally excited populations from IR-multiphoton absorption. I. Absorbed energy and reaction yield measurements

The molecule 1,1,2-trifluroethane (TFE) was used in experiments to determine the population distribution of excited molecules produced by infrared multiphoton absorption induced by high power TEA CO2 lasers operating at 1079.85 cm-1 .Optoacoustic measurements of absorbed laser power provided a measure of the mean energy of the population distribution, while very low pressure photolysis measurements of the collision-free decomposition yield gave information about the high-energy tail of the distribution.The experimental results were accurately simulated using a Master Equation model that incorporated Quack's statistical- dynamical theory of infrared multiphoton absorption (cases B and C), RRKM unimolecular reactions (three channels), and collisional energy transfer.The computer simulations included known TFE molecular properties and only four adjustable parameters, which were very highly constrained in order to fit the experimental data.From the simulations, we conclude that the optical coupling matrix elements are dramatically reduced in magnitude for energies above the reaction thresholds.This effect is symptomatic of the vibrational anharmonicity due to the presence of the reaction channels, even in molecules that have not yet reacted, resulting in vibrational frequency shifts of the absorption lines out of resonance with the laser line.This effect is expected to be present and observable in other highly vibrationally excited molecules.

Gas-phase kinetics of the self reactions of the radicals CH2F and CHF2

Fluorinated hydrocarbon radical-radical reactions in the gas phase have been studied at low pressure (0.5 ≤ p/mbar ≤ 2) and low temperature (253 ≤ T/K ≤ 333) using the discharge flow reactor molecular beam sampling mass spectrometry (MS) technique. Stable

METHOD OF PRODUCING HALIDE

PROBLEM TO BE SOLVED: To provide a novel method of producing a halide. SOLUTION: A method of producing a halide comprises reacting a halogen with a compound of general formula (1) in the figure, where X and Y each independently represent H, F or CF3. The halide is an unsaturated halide or a saturated halide. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT

METHOD FOR PRODUCING 1-CHLORO-1,2-DIFLUOROETHYLENE

The present invention provides a method for efficiently producing 1-chloro-1,2-difluoroethylene at low cost. Specifically, the present invention provides a method for producing 1-chloro-1,2-difluoroethylene, including the step of dehydrohalogenating chlorofluoroethane represented by formula (1) CFClX1—CHFX2 wherein X1 and X2 are different from each other and represent H, F, or Cl; and either X1 or X2 is H.

METHOD FOR PRODUCING 1,2-DIFLUOROETHYLENE

PROBLEM TO BE SOLVED: To provide a method for producing 1,2-difluoroethylene efficiently and economically in an industrially practicable method. SOLUTION: A method for producing 1,2-difluoroethylene includes the reaction between 1-chloro-1,2-difluoroethylene and hydrogen in a gas phase in the presence of a hydrogenated catalyst. SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT

Copper-Catalyzed Difluoromethylation of Aryl Iodides with (Difluoromethyl)zinc Reagent

The combination of difluoroiodomethane and zinc dust or diethylzinc can readily lead to (difluoromethyl)zinc reagents. Therefore, the first copper-catalyzed difluoromethylation of aryl iodides with the zinc reagents is accomplished to afford the difluorom

Conversion of CHF3 to CH2=CF2 via reaction with CH4 and CaBr2

Reaction of CHF3 and CH4 over CaBr2 was investigated at 400-900°C as a potential route for transforming the highly potent greenhouse gas, CHF3, into the valuable product CH 2=CF2. The homogeneous reaction of CHF3 with CH4 was also studied to assist in understanding the chemistries involved. Compared to the gas phase reaction, the addition of CaBr2 as a reactant increases the conversion of CHF3 and CH4 significantly at low temperatures while to a lesser extent at higher temperatures. In the absence of CaBr2, besides the target product, CH2=CF2, a large amount of C2F4 forms. On addition of CaBr2, the rate of formation of C 2F4 drops dramatically to near zero, while the rate of formation of CH2=CF2 increases considerably at temperatures below 880°C. Experimental and theoretical studies suggest that CHF3 strongly interacts with CaBr2, resulting in the fluorination of CaBr2 to CaF2, the release of active Br species results in the selective formation of CBrF3. The subsequent reactions involving Br, methane, and CBrF3 play a major role in the observed enhanced yield of CH2=CF2.