Bismuth-based energetic materials

Inactive Publication Date: 2016-09-29
SELLIER & BELLOT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0030]It is generally known that very large anions, such as chlorate (ClO3—) and particularly perchlorate (ClO4—), feature a strongly dislocated charge and therefore a very low affinity to cations. In practice, the effect of this property—applicable primarily to perchlorates—is their extreme solubility, not only in water but also in various polar or non-polar solvents. With the exception of the salts of potassium, caesium and rubidium, perchlorates constitute the most soluble salts known, but their extreme solubility is not caused by their association with molecules of solvent. This is also relevant to perchlorates of precious and heavy metals. These facts are supported by the values of the G

Problems solved by technology

Unfortunately, the periodic system offers only a very limited selection, however there is still a metal that is ranked amongst the heaviest elements known and, in accord

Method used

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Embodiment Construction

Sample Embodiments of the Invention

[0038]The table below shows examples of energetic compounds that have been prepared using the method according to this invention.

suggested formulaBi contentexpl. Tfrictionalstarting compoundscompounds produced(wt. %)(° C.)sensitivitySodium azideBiON378320−Sodium picrate(NO2)3C6H2OBiO46240−Sodium styphnate(NO2)3C6H(OBiO)260220−Sodium trinitrophloroglucinol(NO2)3C6(OBiO)367175−4,6-sodium dinitroazidophenolate(NO2)2C6H2N3(OBiO)•Bi2O375200−4,6-potassium dinitrobenzo-furoxanate(NO2)2C6H2N2O2BiO46220−5,5′-sodium azotetrazolateN10C2Bi2(OH)464180+5,5′-sodium azotetrazolateN10C2(BiO)268180+5,5′-sodium azotetrazolateN20C4(BiO)5OH71180+5-potassium nitraminotetrazolateN5CHNO2Bi(OH)256190−5,5′-sodium bis-tetrazolateN8C2Bi2(OH)467280+5,5′-sodium diazoaminotetrazolateN11C2Bi3(OH)669240+5,5′-sodium bis tetrazolylhydrazinateN20C4H4 (BiO)5OH70150+5-sodium nitrotetrazolateN4CNO2Bi(OH)258196−

[0039]Each of the compounds had to be matched with the optimal precipitation ...

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Abstract

Energetic compounds based on bismuth salts with reduced toxicity that are obtained through the reaction of soluble bismuth salts with soluble salts of organic or inorganic energetic compounds based on azides, derivatives aromatic nitro compounds or nitrogenous heterocyclic compounds, together with the methods for their preparation and application.

Description

FIELD OF THE INVENTION[0001]This invention relates to bismuth-based energetic compounds and the method of their preparation and usage.BACKGROUND ART[0002]Recent years have seen a growing pressure on manufacturers dealing with the production and processing of the materials referred to as “energetic”, i.e. explosives and pyrotechnical compounds, including the producers of ammunition, with the aim of achieving the total elimination of the utilisation of toxic materials—primarily compounds based on toxic metals—as disclosed further. These are actually cations of mostly precious metals bonded within organic and inorganic molecules that are virtually irreplaceable, because they form compounds that have served as excellent primary explosives for more than 100 years now, i.e. primary explosives constituting the principal components of ignition systems in primers for ammunition of all calibres, electric matches and detonators of various types.[0003]Ammunition manufacturers have been particul...

Claims

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Application Information

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IPC IPC(8): C06B35/00C06B43/00C06B41/00C07F9/94C01G29/00
CPCC06B35/00C07F9/94C01G29/00B60R2021/26029C06B43/00C06C7/00C06C9/00C06B41/00
Inventor NESVEDA, JIRI
Owner SELLIER & BELLOT
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