Toxicological and Recalcitrant Properties of a Proposed Propellant Ingredient, Triaminoguanidine Nitrate (TAGN). I. Microbiological Study.

摘要

The toxicological and recalcitrant properties of a proposed propellant ingredient, triaminoguanidine nitrate (TAGN), were investigated. Pure cultures of microorganisms isolated from Eglin Air Force Base, Florida, as well as cultures obtained from US Army Natick Laboratories, Natick, Massachusetts were exposed to TAGN and evaluated. During the course of this investigation, it was determined that microbial populations were not adversely affected by short-term exposure to TAGN. The following parameters were not significantly altered by TAGN concentrations up to 50 ppm: growth rate, respiratory activity, and viability. At concentrations greater than 100 ppm, TAGN was bacteriostatic but not bacteriocidal. Of the two bacteria tested, Pseudomonas aeruginosa and Escherichia coli, both were capable of removing (degrading) TAGN from aqueous solution. (Author)