Long Range Basic Research Leading to the Development of Superior Propellants. Compounds of High Nitrogen Content in Propellent Compositions

摘要

Twelve high nitrogen compounds have been investigated in the laboratory as possible ingredients for propellant compositions for purposes of improving performance. Of these compounds, carbohydrazide oxalate, dinitrobiuret, diaminobiuret, hydrazine oxalate and hydrazine nitrate were found to be either unstable by themselves or not compatible with nitrocellulose. Urazine, N-guanyloxamic acid and cyamelide are inert, stable compounds of low energy content and good physical properties. Although these materials may yield satisfactory cool compositions, their present method of preparation does not make them feasible for large scale production. Although nitrobiuret undergoes decomposition at 100 C, it appears sufficiently stable and compatible with nitrocellulose at 75 C. This compound is of particular interest as a non-smoky flash reductant because it possesses a zero oxygen balance to carbon monoxide and water, requires energy to burn, and can be made readily available. Guanylaminotetrazole and guanylaminotetrazole nitrate, which contain 77% and 56% nitrogen, respectively, both possess negative energy contents for combustion but because of their plosophoric nature can be made to burn readily. Both compounds possess good physical properties and are compatible with nitrocellulose.