Agent Name

Chlorofluoromethane

CAS Number

593-70-4

Formula

C-H2-Cl-F

Major Category

Solvents

Synonyms

CFC 31; FC 31; Freon 31; G 31; Genetron 31; HCFC-31; Khladon 31; Methylene chloride fluoride; Monochloromonofluoromethane; R 31; R 31 (Refrigerant); Methane, chlorofluoro-; [ChemIDplus] Fluorochloromethane; [EPA] UN3163

Category

Chlorofluorocarbons

Description

Gas; [SynQuest Laboratories MSDS]

Sources/Uses

Not produced commercially (1986); Found as an impurity in dichlorofluoromethane (FC-21); [IARC] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Comments

Causes somnolence, convulsions, and liver and kidney changes in inhalation lethal-concentration studies of mice; Causes changes to the kidney, spleen, and endocrine system in 2-week intermittent inhalation studies of rats; [RTECS] May cause irritation; Sudden release of compressed gas may cause frostbite; Inhalation of high concentrations may cause dizziness; [SynQuest Laboratories MSDS] See "Difluoromethane."

Exposure Assessment
Lethal Concentration

LC50 (rat) = 4,500 ppm/4hr

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Liquefied gas, n.o.s."

Adverse Effects
Neurotoxin

CNS Solvent Syndrome

Other Poison

Simple Asphyxiant

IARC Carcinogen

Not Classifiable

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: