Nitrogen Hemioxide: Properties and Neutralization Methods

摘要

The physical and chemical properties of N (2) O and methods for its trapping and decomposition are examined. It is found that organic solvents, water, hydrazine hydrate, and a solution of potassium bichromate in sulfuric acid dissolve N (2) O but its stabilization by this method is unreliable. Catalytic decomposition upon heating is acknowledged to be an effective method of neutralizing N (2) O. Different composite materials, including those containing d and AE' elements, were studied as catalysts. It was found that suitable composites for catalytic decomposition of N (2) O are SiO (2) -Cu, Al (2) O (3) -Ni at 150A degrees C and Al (2) O (3) -Cu, Al (2) O (3) -Fe, Al (2) O (3) -Ni, and SiO (2) -Cu at 250A degrees C. It was shown that the passage of ethanol vapors above the composites at the indicated temperature increases the degree of decomposition of N (2) O by a factor of 10. The results obtained were used to develop a gas-purification system in the technology for reprocessing spent nitride fuel.