Product show
RC-318 (Octafluorocyclobutane)
Identification
Synonyms:Freon C318; Halocarbon C318; Perfluorocyclobutane; RC-318
CAS No.: 115-25-3 EC No.: 204-075-2
Molecular Weight: 200.0312
Molecular Formula: C4F8
Structural Formula: 
b.p. (1 atm): -5.8°C
m.p.: -40.1°C
Density of liquid (-20°C): 1.654g/cm3
ODP: 0
Preparation
RC-318 is produced by the dimerization of tetrafluoroethylene and the reductive coupling of 1,2-dichloro-1,1,2,2-tetrafluoroethane.
Application
RC-318 is used as propellant in food industry, refrigerant, cleaning agent, dielectic (mixture with SF6); media of polymerization of fluorine-contained polymers; raw mateial for etchant of IC.
Specification*
| Items | Specification |
|---|---|
| C-318 (Octafluorocyclobutane content), % | 99.90 min. |
| moisture, mg/kg | 20 max. |
| oxygen, v/v, % | 0.0020 max. |
| acidity, mg/kg | 1 max. |
| non-volatile residues, % | 0.0050 max. |
| apprearance | clear colorless liquefied gas |
Standard Packaging
1200kg/steel cylinder; filling ratio 1.296kg/l
Risks and Safety Information
RC-318 is regulated by UN as Non flammable liquefiable gas with Class 2.2; UN 1976
For more information, please see MSDS