INHIBITED N(2)O(4)
Abstract
This program is concerned with evaluating a new storable liquid oxidizer INTO, which is nitrogen tetroxide (NTO) inhibited with a fluorine oxidizer. The best fluorine oxidizer has been found to be FNO2. Storability tests of INTO in stainless-steel, aluminum, and nickel containers at 70 C have now been in progress for 6 months with no apparent change in the composition of the propellants. Corrosion tests of steel and aluminum alloys are being conducted in wet NTO, dry NTO, INTO made from wet NTO, INTO made from dry NTO, and dry NTO + HF. The tests are for 30 days. The results of the 30-day tests are reported. A definite passivation layer was noted both visually and by weight change on the aluminum samples exposed to INTO at both temperatures and on the iron samples exposed to INTO and to NTO + HF at 70 C. INTO made from wet and dry NTO has been intermittently flowed through 25- and 100-pound valves for a 2 week period with no apparent deterent effects upon valve performance. INTO has been prepared by bubbling F2 through liquid-propellant-grade NTO at ambient temperature. The reaction proceeded smoothly and no difficulties are anticipated in scaling up the operation. The conductivities of INTO and NTO solutions have been measured.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1967
- Accession Number
- AD0804976
Entities
People
- A. D. Lev
- E. J. Junkins
- H. H. Rogers
- Hubert E. Dubb
- J. Gerhauser