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Synthesis method of BNCP (cis-bis-(5-nitrotetrazolato)tetraminecobalt (III) perchlorate) as initiating explosive

A technology of nitrotetrazole and synthesis method, applied in chemical instruments and methods, cobalt organic compounds, compounds containing elements of Group 8/9/10/18 of the periodic table, etc., can solve the risk of nitric acid-carbonate-tetrazolium Cobalt ammine synthesis conditions are difficult to control and other problems, to achieve the effect of improving yield, optimizing synthesis process, improving efficiency and yield

Inactive Publication Date: 2017-08-18
NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0005] Aiming at the existing risks of preparing and storing 5-nitrotetrazole sodium and the difficulty in controlling the synthesis conditions of nitric acid-carbonate-tetraammine cobalt, the invention provides a primer perchloric acid-tetraammine-cobalt The synthetic method of bis(5-nitrotetrazole) cobalt, the method is easy to industrialize, and the reaction yield and the purity of the product are all higher

Method used

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  • Synthesis method of BNCP (cis-bis-(5-nitrotetrazolato)tetraminecobalt (III) perchlorate) as initiating explosive

Examples

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Embodiment 1

[0021] Solution A: Add 120 mL of water to the beaker, slowly add 11 mL (158.89 mmol) of 35% dilute nitric acid, 8.3 g (97.65 mmol) of 5-aminotetrazole, and 1 g (4.01 mmol) of copper sulfate pentahydrate under stirring conditions, and stir thoroughly. It is a light blue transparent solution.

[0022] Solution B: Place a three-necked flask in an ice bath, add 200 mL of water, add 30 g (434.78 mmol) of sodium nitrite and 12.7 g (50.88 mmol) of copper sulfate pentahydrate under mechanical stirring, and the system is a dark green solution.

[0023] Add the prepared solution A dropwise to solution B, control the reaction temperature to not exceed 8°C, continue stirring for 1 hour after the addition is complete, after the reaction is completed, the reaction solution is suction filtered and washed with water to obtain 5-nitrotetrazolium copper salt solid. Transfer the 5-nitrotetrazolium copper salt solid to a three-necked flask containing 200 mL of water, mechanically stir, heat to 70°C, a...

Embodiment 2

[0029] This example is basically the same as Example 1, except that the dosage of 5-aminotetrazole is 41.5g (488.24mmol), the mass ratio of NaNT and CTCN is 5:1, and a 900mL solution containing about 50g of NaNT is obtained, BNCP The yield was 59%.

Embodiment 3

[0031] This example is basically the same as Example 1, except that the amount of NaNT is 20g (145.98mmol), the amount of CTCN crystal is 10.6g (42.58mmol), and the mass ratio of NaNT and CTCN is 2:1. The yield of BNCP was 61%.

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Abstract

The invention discloses a synthesis method of BNCP (cis-bis-(5-nitrotetrazolato)tetraminecobalt (III) perchlorate) as an initiating explosive. According to the method, NaNT (sodium 5-nitrotetrazolate) and CTCN (cobalt carbonatotetraamine nitrate) are prepared from 5-aminotetrazole and cobalt nitrate as raw materials, and BNCP is synthesized from NaNT and CTCN as raw materials. The yield of BNCP synthesized with the method can reach 60% or higher, and product purity is higher. The raw materials are simple and easily available, a synthesis route is simple, and industrial production is facilitated.

Description

Technical field [0001] The invention belongs to the technical field of detonator synthesis and relates to a method for synthesizing detonator perchloric acid-tetraammonium-bis(5-nitrotetrazole)cobalt. Background technique [0002] Explosive is the most sensitive and first-acting ignition material. It controls the sensitivity, intensity and various effects of pyrotechnics, so its safety, reliability and efficiency have attracted much attention. [0003] High-nitrogen compounds contain a large number of N-N, N-C high-energy chemical bonds and have high positive enthalpy of formation. The low carbon and hydrogen content is conducive to quickly reaching zero oxygen equilibrium, increasing molecular density and energy, and causing little pollution by decomposition products. Especially for the structure of high-nitrogen heterocyclic coordination compounds, the stability of the compound can be designed through the selection of non-lead low-toxic central metal ions, the selection of...

Claims

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Application Information

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IPC IPC(8): C07F15/06
CPCC07F15/065
Inventor 杨红伟朱宇程马晋超程广斌
Owner NANJING UNIV OF SCI & TECH
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