INVESTIGATION OF THE THERMODYANMIC PROPERTIES OF PROPELLANT INGREDIENTS AND THE BURNING MECHANISMS OF PROPELLANTS
Quarterly progress rept. no. 3, 1 Jul-30 Sep 1967
DOW CHEMICAL CO MIDLAND MI SCIENTIFIC PROJECTS LAB
Pagination or Media Count:
The heat of formation of carbon tetrafluoride was derived as -223.2 plus or minus 0.6 kcalmole from measurements of the heat of explosion of mixtures of cyanogen and nitrogen trifluoride. Measurements of the heat of explosion of mixtures of hydrogen and trifluoromethoxy difluoroamine were completed. The heat of formation of CF3ONF2 was calculated from the data as - 189.1 plus or minus 0.8 kcalmole based on NBS Technical Note 270-1 value for HF aq. This result implies a relatively strong bond energy EN-O 53 kcalmole, contrary to some evidence indicating EN-O 35 kcalmole. Errors were found in mathematical expressions used for the computerized calculations for experiments previously reported on Beane BeH2 and ATBH alane-terminated beryllium hydride polymer. The data were recomputed and now show a higher precision. The heats of formation were slightly revised as follows Beane, from -5.3 to -5.0 kcalmole ATBH, from -33.7 to -35.7 to -35.7 kcal100 grams. Work on DAHTP, Florox, and NF4BF4 is in progress. The preparation of pure, solvent-free TVOPA has been completed and it has been determined to contain only negligible benzene residue.
- Rocket Propellants
- Solid Rocket Propellants