Environmental Fate of Hydrazines

Abstract

Kinetic and mechanistic studies of the oxidative reactions of hydrazine, monomethylhydrazine (MMH), and unsymmetrical dimethylhydrazine (UDMH) have been studied to assess the impact of these propellants on the atmosphere. Studies were conducted using an environmental chamber, a packed flow-reactor, and a new type of laminar flow reactor designed to minimize wall effects. Air- oxidation rates in a 6515-liter fluorocarbon-film environmental chamber were found to be much slower than the loss due to adsorption and permeation through the walls. Half-lives of 40, 19, and 60 hours were found for hydrazine, MMH, and UDMH, respectively. Metal surfaces were found to increase the rates of oxidation, and bayerite-coated aluminum (corroded aluminum) was found to be a particularly effective oxidation catalyst for hydrazine.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1989
Accession Number
ADA242930

Entities

People

  • Dennis D. Davis
  • Jan E. Kilduff
  • Nathalie B. Martin
  • William C. Mahone

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Biomedical
  • C4I
  • Ground and Sea Platforms
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Alkenes
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Dielectric Gases
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Monte Carlo Method
  • Nitrogen
  • Nitrogen Oxides
  • Organic Chemistry
  • Oxidation

Readers

  • Environmental Engineering
  • Organic Chemistry
  • Underwater engineering and Marine Technology.