Accession Number : AD0430909

Title :   THE COMBUSTION OF ELEMENTAL BORON WITH FLUORINE.

Descriptive Note : Final rept.,

Corporate Author : TEXACO EXPERIMENT INC RICHMOND VA

Personal Author(s) : Henderson,U. V. ,Jr. ; Woods,H. P. ; Poplin,Genevieve

Report Date : 03 FEB 1964

Pagination or Media Count : 24

Abstract : Comparable experiments were carried out with both single-crystal and polycrystalline boron rods. Good reproducible data were difficult to obtain in any event, but much better results were obtained from single-crystal experiments. Although there was comparatively little scatter in the data points obtained in any single experiment from which the rate data were derived, appreciable scatter is noticeable in the plot of rate vs temperature and pressure, due undoubtedly to difficulties in accurately measuring the temperature of the rod (assumed to be in thermal equilibrium with the wall of the reactor, on the basis of separate experiments) and in accurately measuring the pressure of the fluorine. For single-crystal boron fluorination in the 0.1 to 1 torr region, the data indicate a reaction that is independent of fluorine pressure up to about 600 K. At about this temperature there is a change in the rate-limiting process and the rate increases with fluorine pressure. No such conclusions could be obtained from the polycrystalline boron experiments. (Author)

Descriptors :   (*OXIDIZERS, FLUORINE), (*BORON, COMBUSTION), (*FLUORINE, COMBUSTION), SINGLE CRYSTALS, RODS, FLUORINATION, SOLID ROCKET FUELS, REACTION KINETICS, HIGH TEMPERATURE, LOW PRESSURE, PHOTOMICROGRAPHY, SURFACE PROPERTIES, MASS SPECTROSCOPY, CHEMICAL REACTIONS, IONS, INTENSITY, BORON COMPOUNDS, FLUORIDES, IONIZATION POTENTIALS

Distribution Statement : APPROVED FOR PUBLIC RELEASE