Thermochemistry of Oxygen-Fluorine Bonding
Quarterly technical summary rept. no. 7, 1 Sep-30 Nov 1962
UNITED TECHNOLOGY CENTER SUNNYVALE CA
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The preliminary value obtained for the heat of formation of ClO4F from the heat evolved during fluorination of 70 HClO4 was refined to yield the value of 18.5Kcalmole. Considerable uncertainty is still associated with this value as a result of experimental variations. The determination of the heat of combustion appears to be an attractive alternative for the evaluation of the heat of formation of ClO4F. Mass spectrographic analysis of CF3OF has shown that a purity of greater than 97 was achieved for this material and has established that the technique employed for the removal of COF2 the primary by-product, is particularly effective. F5SOF was purified by repetitive fractional codistillation. NO3F was found to be reactive with H and explosive mixtures were obtained. The material also hydrolyzes readily in caustic solution under conditions achieved in the modified two-chamber gas combustion bomb.
- Physical Chemistry