Octafluorocyclobutane

Base Information

• Chemical Name: Octafluorocyclobutane
• CAS No.: 115-25-3
• Deprecated CAS: 178459-70-6,266002-75-9,266002-75-9
• Molecular Formula: C4F8
• Molecular Weight: 200.031
• Hs Code.: 2903890090
• European Community (EC) Number: 204-075-2
• UN Number: 1976
• UNII: V9P1D0A21K
• DSSTox Substance ID: DTXSID9041811
• Nikkaji Number: J380H
• Wikipedia: Octafluorocyclobutane
• Wikidata: Q413079
• Metabolomics Workbench ID: 54318
• ChEMBL ID: CHEMBL444147
• Mol file: 115-25-3.mol

Synonyms:Freon C 318;Freon C-318;octafluorocyclobutane

Chemical Property of Octafluorocyclobutane

Chemical Property:

• Appearance/Colour: Colorless gas
• Vapor Pressure: 2220mmHg at 25°C
• Melting Point: -41.4 °C
• Refractive Index: 1.217
• Boiling Point: -6 °C
• PSA: 0.00000
• Density: 1.66 g/cm³
• LogP: 2.54120
• XLogP3: 1.6
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 8
• Rotatable Bond Count: 0
• Exact Mass: 199.98722530
• Heavy Atom Count: 12
• Complexity: 151
• Transport DOT Label: Non-Flammable Gas

Purity/Quality:

98% ^*data from raw suppliers

Octafluorocyclobutane 99% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Safety Statements: 23-38

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Other Classes -> Halogenated Cyclic Hydrocarbons
• Canonical SMILES: C1(C(C(C1(F)F)(F)F)(F)F)(F)F
• Uses: Refrigerant; heat-transfer medium.Halocarbon 318 is used for plasma etching. When it is exposed to the RF field generated in the etching process, a gas plasma is produced that will etch silicon compounds with excellent selectivity.

Technology Process of Octafluorocyclobutane

There total 53 articles about Octafluorocyclobutane 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: 99.0%

1,2,2,3,3-pentafluoro-1-difluoromethylcyclopropane (379-14-6) + cyclohexene (110-83-8) → polytetrafluoroethylene (116-14-3,82785-14-6) + pentafloropropylene (433-66-9) + carbon monoxide (201230-82-2) + Octafluorocyclobutane (115-25-3) + 7,7-difluoronorcarane (823-70-1) + silicon tetrafluoride (7783-61-1)

Guidance literature:

With Pyrex tube; at 200 ℃; for 320h; Product distribution; Mechanism; further periods of contact time, other temperatures;

Reference yield: 73.0%

1,2,3,4,7,7-hexafluorobicyclo<2,2,1>hepta-2,5-diene (17065-31-5) → Octafluorocyclobutane (115-25-3) + 1,2,3,4-tetrafluorobenzene (551-62-2)

Guidance literature:

at 450 ℃; for 0.5h;

DOI:10.1016/S0022-1139(00)80921-5

Reference yield:

2-chloro-1,1,2,2-tetrafluoroethane (354-25-6) → polytetrafluoroethylene (116-14-3,82785-14-6) + perfluoropropylene (116-15-4,13429-24-8,25120-07-4,6792-31-0) + trifluoromethan (75-46-7) + Chlorodifluoromethane (75-45-6) + 2,2,2-trifluoroethanol (420-46-2) + 1-chloro-1,1,2,2,3,3-hexafluoropropane (422-55-9) + perfluoroisobutylene (382-21-8) + 1,1,1,2-tetrafluoro-2-chloroethane (2837-89-0) + Octafluorocyclobutane (115-25-3)

Guidance literature:

at 642 - 780 ℃; Nickel-lined reactor Inconel 617; Pyrolysis;

upstream raw materials:

Chlorodifluoromethane

trichlorofluoromethane

hexafluorocyclobut-1-ene

2-chloro-1,1,2,2-tetrafluoroethane

Downstream raw materials:

polytetrafluoroethylene

perfluoropropylene

Vinylidene fluoride

2,3,3,3-tetrafluoro-propene

Refernces

• 1、 Chambers,R.D. et al.. "". . p. 5298 - 5301. Retrieved 1960.
• 2、 Dimitrov, A.,Stewig, H.,Ruediger, St.,Kolditz, L.. "CURRENT BALANCE OF THE ELECTROCHEMICAL FLUORINATION OF A TRIALKYLAMINE". . p. 13 - 22. Retrieved 1990.
• 3、 Bhadury, Pinaki S.,Singh, Sapna,Sharma, Mamta,Palit, Meehir,Jaiswal, Devendra K.. "Fluorine chemistry - Wittig based synthesis of volatile organofluorine compounds". . p. 1186 - 1191. Retrieved 2004.
• 4、 Ruff,Merritt. "-". . p. 3968. Retrieved 1965.
• 5、 -. "Depolymerization of Fluoropolymers". Page/Page column 5-6. . Retrieved 2009/06/27.
• 6、 -. "Noncatalytic manufacture of 1,1,3,3,3-pentafluoropropene from 1,1,1,3,3,3-hexafluoropropane". Page/Page column 3. . Retrieved 2008/06/13.