Inorganic Fluoride Propellant Oxidizers Volume II. Effects Upon Microorganisms, Fish, and Plants
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Report Number: AMRL TR 66-187 Volume 2
Author(s): Dost, Frank N., Wang, C. H., Reed, D. J.
Corporate Author(s): Oregon State University
Laboratory: Biomedical Laboratory
Date of Publication: 1968-11
Pages: 59
Contract: AF 33(615)-1767
DoD Project: 6302
DoD Task: 630204
Identifier: AD0684176
Abstract:
The effects of the inorganic fluoride oxidizing agents, chlorine trifluoride, chlorine pentafluoride, bromine pentafluoride, oxygen difluoride, nitrogen trifluoride, and tetrafluorohydrazine, upon selected species of microorganisms, fish, and plants were studied. In acute exposures of less than 1 hour, the interhalogens, as gases, are destructive to plants at atmospheric concentrations of 10-30 ppm, and in aqueous solution, are lethal to fish and microorganisms at concentrations of 10-25 micrograms fluoride per milliliter. The latter effects result from formation of inorganic acids and various oxidizing species, either of which are lethal alone and which can be neutralized by basic compounds and reducing agents, and by filtration through soil. Oxygen difluoride is toxic to plants at concentrations in air as low as 1.5 ppm over a 30-minute exposure period, but has no effect upon aquatic species. Nitrogen trifluoride and tetrafluorohydrazine are nearly innocuous to nonmammalian organisms.
Provenance: RAF Centre of Aviation Medicine
Author(s): Dost, Frank N., Wang, C. H., Reed, D. J.
Corporate Author(s): Oregon State University
Laboratory: Biomedical Laboratory
Date of Publication: 1968-11
Pages: 59
Contract: AF 33(615)-1767
DoD Project: 6302
DoD Task: 630204
Identifier: AD0684176
Abstract:
The effects of the inorganic fluoride oxidizing agents, chlorine trifluoride, chlorine pentafluoride, bromine pentafluoride, oxygen difluoride, nitrogen trifluoride, and tetrafluorohydrazine, upon selected species of microorganisms, fish, and plants were studied. In acute exposures of less than 1 hour, the interhalogens, as gases, are destructive to plants at atmospheric concentrations of 10-30 ppm, and in aqueous solution, are lethal to fish and microorganisms at concentrations of 10-25 micrograms fluoride per milliliter. The latter effects result from formation of inorganic acids and various oxidizing species, either of which are lethal alone and which can be neutralized by basic compounds and reducing agents, and by filtration through soil. Oxygen difluoride is toxic to plants at concentrations in air as low as 1.5 ppm over a 30-minute exposure period, but has no effect upon aquatic species. Nitrogen trifluoride and tetrafluorohydrazine are nearly innocuous to nonmammalian organisms.
Provenance: RAF Centre of Aviation Medicine