The Gas Phase Kinetics of Methylhydrazine and Related Compounds.
Abstract
The following compounds have been pyrolyzed under very low pressure conditions (VLPP): Benzylamine; N-methylbenzylamine; N,N-dimethylbenzylamine; Monomethylhydrazine; Unsymmetrical dimethylhydrazine; Symmetrical dimethylhydrazine; and Tetramethylhydrazine. The rate constants (k(uni)) for the first order disappearance of these molecules have been determined. The k(uni) are not the rate constants of ultimate interest since they reflect the fact that energy transfer competes with the chemical decomposition. Use of the Rice-Ramsperger-Kassel-Marcus (RRKM) theory allows the determination of the rate constants associated with the purely chemical change (k(infinity)) if the mode of decomposition is known. The mechanism of pyrolysis of the three benzylamines is shown to occur through C-N bond homolysis. The results and other evidence lead to the conclusion that MMH decomposes via molecular concealed elimination of NH3 and H2 and not by N-N bond scission. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1970
- Accession Number
- AD0878425
Entities
People
- David M. Golden
- Norman A. Gac
- Richard K. Solly
Organizations
- SRI International