Development of a Site-Marker Balloon Inflation System
MSA RESEARCH CORP EVANS CITY PA
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The report presents the results of the development of a sodium borohydride-dihydrazine sulfate gas generator as a site marker balloon inflation system. This combination generated gas with an average molecular weight of 6.0 compared to 4.0 for helium. Nitrogen, water and hydrogen sulfide were the principle contaminants. The addition of lithium hydride significantly reduced the water and hydrogen sulfide contents, lowering the molecular weight to approximately 4.3. Studies on the charge demonstrated that the burning rate was primarily a function of pressed charged density. The temperature of the gas generated by the solid charge was also shown to be a function of charge density and composition. Thermal stability tests on the final charge showed a premature gas release sufficient to consider it unsafe for storage. Reagent purification studies and microencapsulation of the basic ingredients failed to resolve this problem.
- Industrial Chemistry and Chemical Processing
- Hydraulic and Pneumatic Equipment
- Military Operations, Strategy and Tactics