Phase state stabilization of ammonium nitrate for creating an oxidizing agent for smokeless gas-generating formulations yielding no toxic combustion products

Головина, Н. И.; Nechiporenko, G. N.; Nemtsev, G. G.; Dolganova, G. P.; Roshchupkin, V.P.; Лемперт, Д. Б.; Манелис, Г. Б.

doi:10.1134/s1070427207010053

Cited by 18 publications

(4 citation statements)

References 4 publications

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“…We added smaller amounts of additives than previous researchers [11][12][13][14]. It is possible that if the amount of additives is large, perhaps the effects of hydrogen bonding are increased.…”

Section: Dsc Analysismentioning

confidence: 95%

Phase Stability of Ammonium Nitrate with Organic Potassium Salts

Wang

2016

Cent. Eur. J. Energ. Mater.

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Abstract:A study has been undertaken on the effect of additives on the phase transition of ammonium nitrate(V) (AN). Results obtained using Differential Scanning Calorimetry (DSC) showed that organic compounds and potassium salts of organic compounds have an effect on the phase transition behavior of AN. The samples were further analyzed using infrared (IR) and powder X-ray diffraction (XRD). The mechanism of phase stabilization of AN by compounds of this kind was examined. The present study showed that the influence of additives on the phase transition of AN occurs through the polar groups that are involved in intermolecular interactions of orbital and electrostatic types that form new hydrogen bonds. AN exists in only one phase in the temperature range from 30 °C to +100 °C, when a potassium salt of organic compounds was added. However, with organic compounds, the III→II phase transition was changed. IR and XRD of composites are characterized by new intermolecular interactions. Compacted samples of AN containing potassium salts of organic compounds exhibited better stability than AN containing organic compounds to multiple cyclic changes within a temperature range. This we named 'freezing and thawing analysis'. Additives have two functions on the AN phase transition. First, solid solutions of AN mixture were formed for K + replacement of NH4 + . Second, hydrogen bonds formed, which caused AN and salts of organic compounds to interact intimately

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Section: Dsc Analysismentioning

confidence: 95%

Phase Stability of Ammonium Nitrate with Organic Potassium Salts

Wang

2016

Cent. Eur. J. Energ. Mater.

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“…For pure AN sample, the main XRD peaks appeared at 18.18°, 22.64°, 29.11°, 33.03°, and 40.03°. Standard XRD pattern of pure phase IV of AN has XRD peaks at 17.9°, 22.43°, 28.9°, 32.88°, and 39.85° . At ambient temperature, the prepared pure AN sample was in phase IV.…”

Section: Resultsmentioning

confidence: 99%

Investigating the Effect of Copper(II) Coordination Compound with Azodicarbonamide Ligand on the Phase‐Stabilization of Ammonium Nitrate

Asgari

Ghani

Keshavarz

2017

Zeitschrift anorg allge chemie

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Abstract.A novel copper(II) coordination compound was synthesized using azodicarbonamide (ADC) as ligand (Cu II -ADC). The structural, morphological, and optical properties of the synthesized material are investigated using X-ray diffraction, field emission scanning electron microscopy, Fourier transform infrared, and diffuse reflectance spectroscopy. Evaluation of the obtained results indicates that ADC coordinated to copper ions. Ammonium nitrate (AN) is an affordable oxidant,

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“…The advantages of AN-based propellants can be expressed as their low cost, smooth burning without smoke and producing of high volume of gases [11]. Using the AN in large missile motors, despite these privileges, is restricted due to some disadvantages such as the room temperature volume changing phase transformations, adsorption of moisture, low energy, and low burning rate [12][13][14][15]. The phase transitions of AN which occur near room temperature, are accompanied by a remarkable volume expansion and result in crack formation in the propellant grain [16].There exist ve polymorphic phases of AN, which appear at other temperatures.…”

Section: Introductionmentioning

confidence: 99%

Investigating the effect of a zeolitic imidazolate framework, ZIF-8, on the phase transition and thermal decomposition of ammonium nitrate

Kazemshoar-Duzduzani,

Mousaviazar,

Ghani

et al. 2023

Preprint

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Ammonium nitrate (AN) is a well-known energetic material that is used as a chlorine-free oxidizer for substituting the ammonium perchlorate in composite and gas generators propellants. In this work, the phase transitions and the thermal decomposition of AN was investigated under the influence of a zeolitic imidazolate framework (ZIF-8). Different percentages of AN/ZIF-8, i.e., 0.95:0.05, 0.9:0.1, and 0.85:0.15, were prepared by the solvent and mechanical methods, and their phase transition and thermal decomposition have been studied by TG-DSC. To investigate the interactions between AN and ZIF-8, the UV–Vis-DRS, XRD, and FT-IR techniques were used. Accordingly, ZIF-8, despite its low weight percentage, stabilized the AN up to 125°C and improved its thermal decomposition behavior. In addition, the catalytic combustion of AN/ZIF-8 species showed exothermic peaks. Moreover, the results showed that ZIF-8, due to its Lewis acid-base sites as well as the porous structure, could be stated as an excellent catalyst that improves the AN thermal decomposition and removes its inappropriate phase transitions.

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Phase state stabilization of ammonium nitrate for creating an oxidizing agent for smokeless gas-generating formulations yielding no toxic combustion products

Cited by 18 publications

References 4 publications

Phase Stability of Ammonium Nitrate with Organic Potassium Salts

Phase Stability of Ammonium Nitrate with Organic Potassium Salts

Investigating the Effect of Copper(II) Coordination Compound with Azodicarbonamide Ligand on the Phase‐Stabilization of Ammonium Nitrate

Investigating the effect of a zeolitic imidazolate framework, ZIF-8, on the phase transition and thermal decomposition of ammonium nitrate

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