octafluorocyclobutane; Freon C318; Halocarbon C318; Perfluorocyclobutane; RC-318

Synonyms:Freon C318; Halocarbon C318; Perfluorocyclobutane; RC-318

CAS No.: 115-25-3

Molecular Weight: 200.0312

Molecular Formula: C4F8

Structural Formula:

b.p. (1 atm): -5.8°C

m.p.: -93.6°C

Density of liquid (25°C): 1.5g/ml

ODP: 0

Application

C318 is used as propellant in food industry, refrigerant, cleaning agent, dielectic (mixture with SF6); media of polymerization of fluorine-contained polymers; etchant of IC.

Specifications

item

specification

octafluorocyclobutane content, %

99.5 min

moisture, mg/kg

40 max

acidity, mg/kg 1 max

non-volatile residues, % 0.01 max

apprearance clear colorless liquefied gas

Standard Packing

steel cylinder; filling ratio 1.296kg/l

Risks and Safety Info

Non flammable liquefiable gas; Class 2.2; UN1976