Investigation of Potassium Dinitrobenzofuroxan (KDNBF) to Provide Data Necessary for the Preparation of a Military Specification.

摘要

Research has defined the critical properties of KDNBF (commonly known as potassium dinitrobenzo -furoxan, but more accurately designated as potassium 4, 6 dinitro- 7 hydroxy-7 hydro-benzofuroxan), established a self-checking testing procedure, and set tolerances which can be used as a basis for a rigorous military specification. KDNBF's of both particularly high and low purity and quality were tested, concurrently with KDNBF's obtained from three commercial sources to provide a broad diversity of data. The functioning of KDNBF was defined from pressure-time traces obtained from firings in a 1-ml(milliliter) pressure bomb, and it was related to purity as determined by nuclear magnetic resonance, X-ray diffraction, and elemental analysis. The thermal stability, as measured by differential thermal analysis and gas evolution at 120C, also was related to KDNBF purity and function. A specific test based on solubility in methanol was devised to detect contamination of KDNBF by a hydrolysis decomposition product and, in addition, storage under absolute methanol in sealed containers was recommended. Of secondary importance were tests related to color, form, granulation, and bulk density, which were used mainly to describe a form of KDNBF suitable for use in automatic-loading machinery. The manufacturing parameters for KDNBF were systematically varied and a recommended process of manufacture is presented. (Author)