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U.S. Department of Energy
Office of Scientific and Technical Information

Trifluoroethanol

Technical Report ·
DOI:https://doi.org/10.2172/5638152· OSTI ID:5638152
Fluorinol-50 and -85 (containing 50 and 85 mole % trifluoroethanol (TFE), respectively) are candidate working fluids for truck and power plant Diesel bottoming cycles, respectively. TFE is self-extinguishing and chemically stable at its proposed operating temperature. Toxic effects were not seen in production workers at Halocarbon Products Corp., the manufacturer, but are apparent in animal studies. The most obvious effects upon acute or chronic inhalation exposure are intoxication, narcosis, and death, but there is wide disagreement on concentrations producing nervous system effects. Ethanol is an antidote. Sterility and impaired spermatogenesis were first noted at 50 ppM in male rats. These changes may be reversible. Exposure of female rats to 10 ppM produced enlarged ovaries. Functional tests of reproductive ability were not done, but they should be, since the above concentrations are not much higher than the recommended threshold limit value, 2.5 ppM. Skin contact with TFE can cause nervous system effects and even death; eye contact produces corneal opacity. Because of TFE's ability to penetrate intact skin, the Toxic Materials Advisory Committee of the US Department of Energy strongly recommended that a less toxic working fluid be sought. We fully concur. It is unknown whether TFE will add to the danger of truck accidents, but leakage of the small amount of TFE used probably will not contaminate drinking water.
Research Organization:
Brookhaven National Lab., Upton, NY (USA)
DOE Contract Number:
EY-76-C-02-0016
OSTI ID:
5638152
Report Number(s):
BNL-50964
Country of Publication:
United States
Language:
English