1,1-Dichloro-1-fluoroethane

Synonyms

CFC 141b; CFC-141; Freon-141; HCFC 141b; Isotron 141b; R 141b; Refrigerant 141b; Solkane 141b; Dichlorofluoroethane; Ethane, 1,1-dichloro-1-fluoro-; [ChemIDplus]

Category

Chlorofluorocarbons

Description

Colorless liquid; [HSDB] Colorless volatile liquid with a faint sweetish odor; bp = 32 deg C; [MSDSonline]

Sources/Uses

Used for foam blowing, cleaning solvent, and refrigerant gas; [HSDB] Used to degrease and to clean soldering flux from printed circuit boards; [AIHA]

Comments

"Vapors may cause dizziness or suffocation. Exposure in an enclosed area may be very harmful." [CAMEO] In confined space spill, may displace air and act as simple asphyxiant; Inhalation of high concentrations can cause CNS depression and cardiac arrhythmias; Defats the skin; [MSDSonline]

Biomedical References

600 mm Hg

LC50 (rat) = 56,700 ppm/6hr

Explanatory Notes

VP from ChemIDplus;

500 ppm, STEL = 3000 ppm (5 min)

Acute solvent syndrome

Other Poison

Simple Asphyxiant

Diseases

Occupational diseases associated with exposure to this agent:

• Asphyxiation, simple
• Solvents, acute toxic effect

Processes

Industrial Processes with risk of exposure:

• Metal Degreasing