Explosive and thermic compositions or charges – Containing nitrogen oxide or acid thereof
Patent
1999-05-06
2000-05-16
Griffin, Steven P.
Explosive and thermic compositions or charges
Containing nitrogen oxide or acid thereof
60252, 25218644, 4233901, C06B 4704, F02K 900, A62D 900, C04K 3000, C01B 2138
Patent
active
060632194
ABSTRACT:
A high density inhibited red fuming nitric acid oxidizer gel is disclosed ich results in an improvement from 0.5% to about 1.0.% in the impulse over a baseline formulation containing 14% nitrogen tetroxide. An improvement from about 3.0% to about 6.0% is achieved in the density impulse baseline formulation. The higher density inhibited red fuming nitric acid is derived by adding from about 15 percent by weight to about 45 percent by weight percent of nitrogen tetroxide to nitric acid in an amount from about 80 percent by weight to about 40 percent by weight. The other ingredient of the oxidizer gel comprise a gellant of about 0-10 percent by weight, water from about 0-4 percent by weight, and an inhibitor agent of about 0-1 percent by weight. IRFNA is inhibited with phosphoric acid, iodine compounds, or hydrogen fluoride which is present in the oxidizer gel as an additive. The higher density IRFNA oxidizer gel or liquid can be used in airbreathing propulsion systems; a bipropellant formulation is used to provide variable thrust. The oxidizer can also be used with air turbo rocket propulsion systems to augment air combustion with fuel gases. It can be used in a liquid or gel/solid system wherein the oxidizer is sprayed in contact with a solid propellant.
REFERENCES:
patent: 3116187 (1963-12-01), Scanlon et al.
patent: 5133183 (1992-07-01), Asaoka et al.
Allan Barry D.
Thompson Darren M.
Bush Freddie M.
Griffin Steven P.
Medina Maribel
The United States of America as represented by the Secretary of
Tischer Arthur H.
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