The Heterogeneous Decomposition of Hydrazine. Part 4. The Kinetics of the Decomposition of Liquid Hydrazine on a Supported Rhodium Catalyst
ROCKET PROPULSION ESTABLISHMENT WESCOTT (UNITED KINGDOM)
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The kinetics of the decomposition of liquid hydrazine on a supported rhodium catalyst exhibit a change from half order for low concentration of hydrazine to zero order for high concentrations of hydrazine. The reaction follows the stoichiometry 2N2H4 to N2 H2 2NH3. The observed kinetics have been explained by deriving the rate equations from the Langmuir adsorption isotherm on the assumption that the hydrazine molecules are dissociatively adsorbed as NH2 radicals. A mechanism is postualted which involves a Langmuir- Rideal type of reaction between adsorbed radicals and a liquid phase hydrazine molecule.
- Inorganic Chemistry
- Physical Chemistry
- Liquid Rocket Propellants