Chlorofluoromethane
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."
Biomedical References
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
Acute solvent syndrome
IARC Carcinogen
Not classifiable
Other Poison
Simple Asphyxiant
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent: