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A diffuse reflectance infrared Fourier transform spectroscopic study of adsorbed hydrazinesDiffuse reflectance spectroscopy of fuel hydrazines adsorbed on silica, silica-alumina and alimina surfaces indicates that the primary surface-hydrazine interaction is hydrogen bonding. Hydrazine, on adsorption to a deuterated silica surface, undergoes a rapid H/D exchange with deuterated surface silanol (Si-OD) groups. Adsorption equilibria are rapidly established at room temperature. Monomethylhydrazine and unsymmetrical dimethylhydrazine are similarly adsorbed. On adsorption, the C-H stretching and methyl deformation modes of the methylhydrazines are shifted to higher frequencies by 10 to 20 cm(-1). These shifts are postulated to be due to changes in the lone-pair electro-density on the adjacent nitrogen atom and an electronegativity effect.
Document ID
19900001854
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Davis, Dennis D.
(White Sands Test Facility Las Cruces, NM., United States)
Kilduff, Jan E.
(White Sands Test Facility Las Cruces, NM., United States)
Koontz, Steven L.
(NASA White Sands Test Facility NM., United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Publication Information
Publication: Hazardous Materials Technical Center, The Third Conference on the Environmental Chemistry of Hydrazine Fuels
Subject Category
Propellants And Fuels
Accession Number
90N11170
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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