4.6 Article

Amine-Boranes: Green Hypergolic Fuels with Consistently Low Ignition Delays

Journal

CHEMISTRY-A EUROPEAN JOURNAL
Volume 20, Issue 51, Pages 16869-16872

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201405224

Keywords

amine-borane; drop test; hypergol; ignition delay; propellants

Funding

  1. H. C. Brown Center for Borane Research
  2. U.S. Army Research Office under the Multi-University Research Initiative [W911NF-08-1-0171]
  3. U.S. Department of Defense through the National Defense Sci. & Eng. Graduate Fellowship Program

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Complexation of amines with borane converts them to hypergols or decreases their ignition delays (IDs) multifold (with white fuming nitric acid as the oxidant). With consistently low IDs, amine-boranes represent a class of compounds that can be promising alternatives to toxic hydrazine and its derivatives as propellants. A structure-hypergolicity relationship study reveals the necessary features for the low ID.

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