Dynamic vapor sorption study of MTX-1 alkali metal salt hydrates

Abstract. The formation of hydrates is a common phenomenon in crystalline materials. The presence of crystal water greatly impacts the properties of the resulting materials, which in the case of energetic materials leads to a decrease in sensitivity, density, and performance. The formation of MTX-1 alkali salt hydrates, a category of poorly described salts of the perspective primary explosive, was studied by the dynamic vapor sorption method, which allows for a rapid investigation of water sorption and/or desorption of substances in small sample quantities and over a wide range of humidity. The compounds were also used as materials for the assessment of the method's practicality in the study of energetic materials hydrate formation. The alkali salts were characterized by DTA, FT-IR, and elemental analysis. The water content in the dehydrated salts was determined by Karl-Fisher titration.