Pyrotechnically Relevant Salts of 1-(2-Chloroethyl)-5-nitriminotetrazole – Synthesis and Coloring Properties

Thomas M. Klapötke, Jörg Stierstorfer and Karina R. Tarantika

Abstract:  agents. Salts of strontium are responsible for a red green one and copper salts, only combined with a chlorine donor, are able to yield a blue To investigate the possibility of reducing the amount of metal in pyrotechnic formulations producing colored 1-(2-chloroethyl)-5-nitriminotetrazolato- nitrimino tetrazolate and trans-[diammine-bis{1-(2-chloroethyl)-5-nitrimino tetrazolate- were synthesized and characterized using IR and Raman spectroscopy, elemental analysis, and differential scanning calorimetry (DSC). Their sensitivities towards shock, friction, and electric discharge and the solubility in H calorimetric measurements. Crystal structures of all compounds have been determined by single crystal X-ray diffraction and a detailed description is given. Last but not least, all salts were tested with regard to their color  erformance.

Alkaline and alkaline earth metal salts are widely used in pyrotechnic formulations as colorantfl ame color, barium salts, mostly Ba(NO3)2, for afl ame color.fl ames, the strontium and barium salts of 1-(2-chloroethyl)-5-nitriminotetrazole, trans-[diaquabis{κ2N4,O5} copper(II)] dihydrate, copper(II) 1-(2-chloroethyl)-5-κ2N4,O1}copper(II)2O at ambient temperature were determined. Heats of formation were calculated using bomb

Keywords: pyrotechnics, coloring agent, tetrazoles, perchlorate-free.


Ref: JPyro, Issue 28, 2009, pp61-77
(J28_61)


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