Hypergolic Propellants Based on High-Test Hydrogen Peroxide and Organic Compounds

The results of studies on determination of the ignition delay time of hypergolic low-toxicity ("green") propellants with high-test hydrogen peroxide as an oxidizer are discussed. The use of liquid and solid fuels containing compounds that catalyze the hydrogen peroxide decomposition (manganese and copper salts) or actively react with hydrogen peroxide (e.g., NaBH4) allows preparation of propellants with the ignition delay time shorter than 20 ms, which allows using these propellants in liquid or hybrid rocket engines. The use of ionic liquids as a fuel in most cases also requires introducing promoters.