Related Experiment Videos
[Fluorocarbons in question]
European Journal of Toxicology and Environmental Hygiene. Journal Europeen De Toxicologie
|January 1, 1976
Summary
This study found that difluorodichloromethane (FC 12) and monofluorodichlormethane (FC 11) show no acute, subacute, or chronic toxicity. High concentrations may cause reversible effects, but "sudden sniffing death" is unlikely at typical aerosol exposure levels.
Area of Science:
- Toxicology
- Environmental Health
- Occupational Safety
Context:
- Fluorocarbons (FCs), specifically difluorodichloromethane (FC 12) and monofluorodichlormethane (FC 11), are widely used industrial chemicals.
- Understanding the toxicological profile of these FCs is crucial due to their extensive application.
- Previous assessments of FC toxicity have raised concerns requiring further investigation.
Purpose:
- To evaluate the acute, subacute, and chronic toxicity of FC 12 and FC 11.
- To determine the teratogenic potential of these two fluorocarbons.
- To investigate the physiological effects and elimination kinetics of FC 12 and FC 11 following inhalation exposure.
Summary:
- Inhalation of FC 12 and FC 11 leads to rapid diffusion and equilibration within the body.
- Reversible physiological effects on respiration, circulation, nervous system, and metabolism occur only at high concentrations (>20% for FC 12, >5% for FC 11).
- Complete elimination of FCs occurs within 20-50 minutes after cessation of exposure.
Impact:
- The study suggests that the risk of "sudden sniffing death" syndrome, potentially linked to cardiac events, is minimal under typical aerosol use conditions.
- Results indicate a low risk of severe toxicity from FC 12 and FC 11 at exposure levels below those causing significant physiological disturbances.
- Findings contribute to the safety assessment of fluorocarbon use in consumer and industrial products.