Agent Name

Octafluorocyclobutane

CAS Number

115-25-3

Formula

C4-F8

Major Category

Other Classes

Synonyms

Cyclobutane, octafluoro-; Cyclooctafluorobutane; FC-C 318; Freon C-318; Halocarbon C-138; Perfluorocyclobutane; Propellant C318; R-C 318; Cyclobutane, 1,1,2,2,3,3,4,4-octafluoro-; [ChemIDplus] C 318; FC 318; FKWC 318; Flon C 318; Fron C 318; Gas refrigerante RC-318 (Spanish DOT); Gaz refrigerant RC-318 (French DOT); HFC-C 318; Octafluorociclobutano (Spanish DOT); R 318; Refrigerant gas RC-318; [CAMEO] UN1976

Category

Halogenated Cyclic Hydrocarbons

Description

Non-flammable and non-toxic gas; [Merck Index] Colorless odorless liquefied gas; [Air Liquide America MSDS]

Sources/Uses

Used as a refrigerant and heat-transfer medium; [Merck Index] Used to make other chemicals; [CAMEO] Used as a propellant for foods; [FDA]

Comments

Causes changes in recordings from specific areas of the CNS in 17-week intermittent inhalation studies of mice; [RTECS] May cause asphyxiation; [CAMEO] A simple asphyxiant; Evaporating liquid can cause frostbite; [Air Liquide America MSDS]

Exposure Assessment
Lethal Concentration

LCLo (mouse) = 780,000 ppm/2hr

Explanatory Notes

LC60 (mouse) = 620,000 mg/m3/2hr; [RTECS]

Adverse Effects
Other Poison

Simple Asphyxiant

Links to Other NLM Databases
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Chemical Information

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Diseases

Occupational diseases associated with exposure to this agent: