Inorganic halogen oxidizer research. Annual report, 1 Jan--31 Dec 1975
Major breakthroughs were achieved in the field of NF/sub 4/(+) chemistry and solid propellant NF/sub 3/-F/sub 2/ gas generators for chemical HF-DF lasers. The novel concept of a self-clinkering NF/sub 3/-F/sub 2/ generator, based on the new (NF/sub 4/)/sub 2/ SNF/sub 6/ salt, was developed, and a feasible method of producing (NF/sub 4/)/sub 2/ SnF/sub 6/ by metathesis was established. Work on the UV-photolysis of NF/sub 3/-F/sub 2/-Lewis acid systems resulted in an economic process for the production of pure NF/sub 4/BF/sub 4/ on a pound scale, thus providing the material required for its development as a NF/sub 3/-F/sub 2/ gas generator. The following novel NF/sub 4/(+) salts have been synthesized: (NF/sub 4/)/sub 2/SnF/sub 6/, (NF/sub 4/)/sub 2/GeF/sub 6/, NF/sub 4/SnF/sub 5/, NF/sub 4/GeF/sub 5/, NF/sub 4/PF/sub 6/, NF/sub 4/BiF/sub 6/, and NF/sub 4/Bi/sub 2/F/sub 11/. These and some of the known NF/sub 4/(+) salts have been or are presently being characterized. The concept of displacing NF/sub 3/ and F/sub 2/ from NF/sub 4/BF/sub 4/ by low-melting eutectic mixtures was examined, and the syntheses of (NF/sub 4/)/sub 2/SiF/sub 6/, NF/sub 4/HF/sub 2/, (N/sub 2/F/sub 3/)/sub 2/GeF/sub 6/, and N/sub 2/F/sub 3/B were attempted. Low-temperature UV-photolysis was also successfully applied to the synthesis of the novel dioxygenyl salt O/sub 2/(GeF/sub 5/-, which was thoroughly characterized. Evidence was obtained for a metastable gaseous species at room temperature containing an infrared active O-O multiple bond. An improved oxidizer for closed-cycle submarine propulsion systems was found and proposed to DARPA for further study. The fluorination of UF/sub 4/ and UO/sub 2/F/sub 2/ to UF/sub 6/ by CF/sub 2/ was briefly investigated. Study of the PtF/sub 6/-XeOF/sub 4/ reaction system and the crystal structure determination of (BrF/sub 2/)/sub 2/ GeF/sub 6/ was completed. (GRA)
- Research Organization:
- Rockwell International Corp., Canoga Park, Calif. (USA). Rocketdyne Div.
- DOE Contract Number:
- N00014-70-C-0294
- OSTI ID:
- 7326689
- Report Number(s):
- AD-A-020482; R-9881
- Country of Publication:
- United States
- Language:
- English
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