A group of tertiary amine azides are useful as hypergolic fuels for hypergolic bipropellant mixtures. The fuels provide higher density impulses than monomethyl hydrazine (MMH) but are less toxic and have lower vapor pressures that MMH. In addition, the fuels have shorter ignition delay times than di
A group of tertiary amine azides are useful as hypergolic fuels for hypergolic bipropellant mixtures. The fuels provide higher density impulses than monomethyl hydrazine (MMH) but are less toxic and have lower vapor pressures that MMH. In addition, the fuels have shorter ignition delay times than dimethylaminoethylazide (DMAZ) and other potential reduced toxicity replacements for MMH.
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1. A hypergolic bipropellant combination comprising an oxidizer and a fuel, said fuel comprising an amine azide chemical having a structure of one of the structures of V, VI, VII, VIII, IX, X, XI, XII, or XIII: 2. The hypergolic bipropellant combination of claim 1, further comprising a gallant mixe
1. A hypergolic bipropellant combination comprising an oxidizer and a fuel, said fuel comprising an amine azide chemical having a structure of one of the structures of V, VI, VII, VIII, IX, X, XI, XII, or XIII: 2. The hypergolic bipropellant combination of claim 1, further comprising a gallant mixed with the fuel or the oxidizer. 3. The hypergolic bipropellant combination of claim 1, wherein the oxidizer is selected from IRFNA, hydrogen peroxide, nitrogen tetroxide, and hydroxyl ammonium nitrate. 4. The hypergolic bipropellant combination of claim 1, wherein the fuel is a mixture comprising the amino azide chemical as an additive. 5. A hypergolic bipropellant combination comprising an oxidizer and a fuel, said fuel comprising an amine azide chemical having the structure: 6. The hypergolic bipropellant combination of claim 5, further comprising a gellant mixed with the fuel or the oxidizer. 7. The hypergolic bipropellant combination of claim 5, wherein the oxidizer is selected from IRFNA, hydrogen peroxide, nitrogen tetroxide, and hydroxyl ammonium nitrate. 8. The hypergolic bipropellant combination of claim 5, wherein the fuel is a mixture comprising the amine azide chemical as an additive. 9. The hypergolic bipropellant combination of claim 5, wherein said fuel comprising an amine azide chemical having the structure XII: 10. The hypergolic bipropellant combination of claim 9, further comprising a gellant mixed with the fuel or the oxidizer. 11. The hypergolic bipropellant combination of claim 9, wherein the oxidizer is selected from IRFNA, hydrogen peroxide, nitrogen tetroxide, and hydroxyl ammonium nitrate. 12. The hypergolic bipropellant combination of claim 9, wherein the fuel is a mixture comprising the amine azide chemical as an additive. 13. The hypergolic bipropellant combination of claim 5, wherein said fuel comprising an amine azide chemical having the structure XIII: 14. The hypergolic bipropellant combination of claim 13, further comprising a gellant mixed with the fuel or the oxidizer. 15. The hypergolic bipropellant combination of claim 13, wherein the oxidizer is selected from IRFNA, hydrogen peroxide, nitrogen tetroxide, and hydroxyl ammonium nitrate. 16. The hypergolic bipropellant combination of claim 13, wherein the fuel is a mixture comprising the amine azide chemical as an additive.
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