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Octafluorocyclobutane (RC-318)

Identification
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

Parameters

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; UN 1976