Abstract
Fluomine is a cobalt chelate compound which complexes molecular oxygen and releases it on heating. This property has led to its use a a regenerable oxygen source in high-altitude aircraft. Investigations into the acute effects of exposure to fluomine by various routes were undertaken as first steps in the toxicological characterization of the material. Single-dose rat and mouse oral administration led to LD50 values of 123 mg/kg for male CF1 mice and 187 mg/kg for male Sprague-Dawley rats. The LC50 values for single four-hour inhalation periods varied from 112 mg/m3 for male rats to 416 mg/m3 for male mice. Fluomine proved to be highly irritating when instilled in the eyes of rabbits and to the lungs of rats on inhalation. Exposure of rabbit skin to the compound demonstrated moderate irritancy particularly in areas of abrasion. Positive reactions to intradermal challenge were demonstrated after both intradermal and inhalation sensitization of guinea pigs.
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