Explosive Properties and Thermal Stability of Urea-Hydrogen Peroxide Adduct

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39911152" target="_blank" >RIV/00216275:25310/17:39911152 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/prep.201600101" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/prep.201600101</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/prep.201600101" target="_blank" >10.1002/prep.201600101</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Explosive Properties and Thermal Stability of Urea-Hydrogen Peroxide Adduct

Popis výsledku v původním jazyce

The adduct of urea and hydrogen peroxide (UHP) is industrially produced material on a large scale. Although UHP is widely used as a bleaching and oxidizing agent, its properties as hazardous energetic material are generally overlooked. In this work we report comprehensive characterization of UHP thermal and explosive properties, and describe results of a series of tests typically used for evaluation of explosives. We found that UHP is a compound with a negative value of standard enthalpy of formation (-565.1 kJ·mol-1). It is not sensitive to impact and friction. However, we demonstrated that as-manufactured UHP (ρ = 0.93 g·cm-3; packed into a steel pipe with inner diameter of 206 mm) could be a detonable material with experimental velocity of detonation (VOD) of 3,600 m·s-1. Moreover, for UHP with maximal theoretical density (ρ = 1.43 g·cm-3), the calculated VOD reaches 5,219 m·s-1. Based on our findings, we recommend that present regulations regarding the handling, storage and transportation of the UHP should be revised, especially in cases where UHP is kept on a large scale, under confinement and at places where the temperature can reach above 60 ºC.

Název v anglickém jazyce

Explosive Properties and Thermal Stability of Urea-Hydrogen Peroxide Adduct

Popis výsledku anglicky

The adduct of urea and hydrogen peroxide (UHP) is industrially produced material on a large scale. Although UHP is widely used as a bleaching and oxidizing agent, its properties as hazardous energetic material are generally overlooked. In this work we report comprehensive characterization of UHP thermal and explosive properties, and describe results of a series of tests typically used for evaluation of explosives. We found that UHP is a compound with a negative value of standard enthalpy of formation (-565.1 kJ·mol-1). It is not sensitive to impact and friction. However, we demonstrated that as-manufactured UHP (ρ = 0.93 g·cm-3; packed into a steel pipe with inner diameter of 206 mm) could be a detonable material with experimental velocity of detonation (VOD) of 3,600 m·s-1. Moreover, for UHP with maximal theoretical density (ρ = 1.43 g·cm-3), the calculated VOD reaches 5,219 m·s-1. Based on our findings, we recommend that present regulations regarding the handling, storage and transportation of the UHP should be revised, especially in cases where UHP is kept on a large scale, under confinement and at places where the temperature can reach above 60 ºC.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Propellants Explosives Pyrotechnics

ISSN

0721-3115

e-ISSN

—

Svazek periodika

42

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

198-203

Kód UT WoS článku

000399735600011

EID výsledku v databázi Scopus

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