Vinylidene fluoride

Base Information

• Chemical Name: Vinylidene fluoride
• CAS No.: 75-38-7
• Deprecated CAS: 1272398-81-8
• Molecular Formula: C2H2F2
• Molecular Weight: 64.0347
• European Community (EC) Number: 200-867-7
• ICSC Number: 0687
• NSC Number: 267683
• UN Number: 1959
• UNII: 3C1IX2905B
• DSSTox Substance ID: DTXSID3021439
• Nikkaji Number: J350F,J2.327.625I
• Wikipedia: 1,1-Difluoroethylene
• Wikidata: Q161287
• ChEMBL ID: CHEMBL116020
• Mol file: 75-38-7.mol

Synonyms:1,1-difluoroethylene;vinylidene fluoride

Chemical Property of Vinylidene fluoride

Chemical Property:

• Appearance/Colour: colorless gas
• Vapor Pressure: 26200mmHg at 25°C
• Melting Point: -144 °C(lit.)
• Refractive Index: 1.264
• Boiling Point: -83 °C
• Flash Point: <-60oC
• PSA: 0.00000
• Density: 0.95 g/cm³
• LogP: 1.39660
• XLogP3: 1.3
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 64.01245639
• Heavy Atom Count: 4
• Complexity: 27
• Transport DOT Label: Flammable Gas

Purity/Quality:

99.9% ^*data from raw suppliers

Safty Information:

• Pictogram(s): F+,F
• Hazard Codes: F+,F
• Statements: R12:Extremely flammable.
• Safety Statements: S16:Keep away from sources of ignition - No smoking.; S33:Take precautionary measures against static discharges.

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Plastics & Rubber -> Vinyl Halides
• Canonical SMILES: C=C(F)F
• Inhalation Risk: A harmful concentration of this gas in the air will be reached very quickly on loss of containment.
• Effects of Short Term Exposure: Rapid evaporation of the liquid may cause frostbite. The substance may cause effects on the central nervous system.

Technology Process of Vinylidene fluoride

There total 121 articles about Vinylidene fluoride which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 53.0%

1-chloro-2,2-difluoroethane (338-65-8) → Vinylidene fluoride (75-38-7) + 1,2-difluoroethene (1691-13-0) + 1-chloro-2-fluoroethylene (460-16-2)

Guidance literature:

at 650 ℃; Further Variations:; Temperatures; Activation energy; Product distribution;

DOI:10.1016/S0040-4039(02)01952-4

Reference yield:

1-chloro-1-fluoroethane (2317-91-1) → 1-fluoroethylene (75-02-5,24981-14-4) + fluoroethyne (2713-09-9) + chloroacetylene (593-63-5) + Vinylidene fluoride (75-38-7) + acetylene (74-86-2,25067-58-7)

Guidance literature:

at 1143.9 ℃; under 703 Torr; Product distribution; infrared multiphoton decomposition, effect of reaction pressure, pulse energy, additives, N₂ and H₂ pressure;

DOI:10.1246/bcsj.58.1358

Reference yield:

methylene (2465-56-7) + (2,2,2-Trifluor-ethyl)-trifluorsilan (54389-21-8) → 2H-pentafluoropropene (690-27-7) + ethane (74-84-0) + ethene (74-85-1) + Vinylidene fluoride (75-38-7) + 1,1,1,3,3,3-hexafluoropropane (690-39-1)

Guidance literature:

at 25 ℃; for 1.5h; under 14 Torr; Product distribution;

DOI:10.1021/j100324a027

upstream raw materials:

1,1-difluoroethane

methane

Dichlorodifluoromethane

2,2,2-trifluoroethanol

Downstream raw materials:

1,3-dibromo-1,1,3,3-tetrafluoro-propane

1,5-dibromo-1,1,3,3,5,5-hexafluoro-pentane

1,2-dichloro-1,1,2,4,4,6,6-heptafluoro-6-iodo-hexane

1,6-dibromo-2-chloro-1,1,2,4,4,6,6-heptafluoro-hexane

Refernces

• 1、 Wang, Jih Tzong,Williams, Ffrancon. "Radical Anion of 1,1-Difluoroethylene. EPR Evidence for a Perpendicular Geometry". . p. 2902 - 2904. Retrieved 1981.
• 2、 Brownsword,Hillenkamp,Laurent,Volpp,Wolfrum,Vatsa,Yoo. "H atom formation dynamics in the dissociation of CH3-CF2Cl (HCFC-142b) after UV and VUV laser photoexcitation". . p. 779 - 785. Retrieved 1997.
• 3、 -. "PRODUCTION METHOD OF ALKENE". Paragraph 0060-0065. . Retrieved 2019/10/16.
• 4、 Wang, Zhikun,Han, Wenfeng,Liu, Huazhang. "EDTA-assisted hydrothermal synthesis of cubic SrF2 particles and their catalytic performance for the pyrolysis of 1-chloro-1,1-difluoroethane to vinylidene fluoride". . p. 1691 - 1700. Retrieved 2019/03/19.