A Mechanism for Ignition of High-Temperature Gaseous Nitromethane - The Key Role of the Nitro Group in Chemical Explosives

A Mechanism for Ignition of High-Temperature Gaseous Nitromethane - The Key Role of the Nitro Group in Chemical Explosives
Title A Mechanism for Ignition of High-Temperature Gaseous Nitromethane - The Key Role of the Nitro Group in Chemical Explosives PDF eBook
Author R. Guirguis
Publisher
Pages 29
Release 1985
Genre
ISBN

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A detailed chemical mechanism describing ignition of high-temperature pure gaseous nitromethane was compiled and tested using shock were n the tange 1000 to 1600 K and 1 to 10 atm. Measurements were made of the timew efolution of the pressure at the end wall, as well as of dte simultaneous pressure and NO avsorption a short, fixed distance from the end wall. Mass and infrared spectoscopy were used to identify the final products. In the reaction mechanism proposed, initiation starts with the C-N bond breaking which yields CH3 and NO2. Methoxy and CH2NO2 proposed, initiation starts with the C-N bond breaking which yields CH and NO2. Methoxy and CH2NO2 radicals then propagate the reaction through two major parallel pathways, both producilng CH2O. Formaldehyde is then reduced to HCO and carries the rraction towards completion. The radical reactions do not release enough energy to compensate for the energy consumed in breaking the C-N bond. Although most of the radicals reach their maximum concentration early lin the reaction process, ignition does not occur until virtually all f the nitromethane is consumed. THe calculations show thar the nitro group is the key to explosion: NO2 produces OH through its reacxtion wilth H radicals. Hydroxyl reactions, which are fast and exothermic, lead t an accelerated consumption to the explosive with heat release. Comparison with the experiments shows that the mechanism predicts correct induction times for the pressure and tempetature range of dthe experiments. Keywords: Chemical kinetics; Explosives.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports
Title Scientific and Technical Aerospace Reports PDF eBook
Author
Publisher
Pages 1160
Release 1986
Genre Aeronautics
ISBN

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Applied Mechanics Reviews

Applied Mechanics Reviews
Title Applied Mechanics Reviews PDF eBook
Author
Publisher
Pages 1052
Release 1985
Genre Mechanics, Applied
ISBN

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The Modern High Explosives

The Modern High Explosives
Title The Modern High Explosives PDF eBook
Author Manuel Eissler
Publisher
Pages 376
Release 1884
Genre Explosives
ISBN

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Nitro-Explosives: A Practical Treatise

Nitro-Explosives: A Practical Treatise
Title Nitro-Explosives: A Practical Treatise PDF eBook
Author P. Gerald Sanford
Publisher DigiCat
Pages 257
Release 2022-11-21
Genre Fiction
ISBN

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Nitro-Explosives: A Practical Treatise is a paper written by P. Gerald Sanford. It delves into the properties, manufacture and analysis of nitrated substances including the fulminates, smokeless powders, and celluloids that are used for the fabrication of the volatile substance.

Nitro Compounds

Nitro Compounds
Title Nitro Compounds PDF eBook
Author Tadeusz Urbański
Publisher Elsevier
Pages 559
Release 2013-09-03
Genre Science
ISBN 1483284425

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Nitro Compounds provides information pertinent to the formation, mechanism, synthesis, and structure of nitro compounds. This book discusses the behavioral uniqueness of the nitro group in electric field. Organized into 50 chapters, this book begins with an overview of the amphoterism of HNO3 and its role in the reactions of HNO3 with organic substances. This text then examines the secondary nitroheptane obtained byvapor-phase nitration of n-heptane with nitrogen dioxide. Other chapters consider the explosion hazard of gaseous mixtures in exothermic reactions of oxidation and nitration. This book discusses as well the method used for the investigation of nitration of phenosulphonic acids. The final chapter deals with the relationship between the structure of nitrofuranoic compounds and the fungicidal, bactericidal, and herbicidal activity. This book is a valuable resource for chemists and organic chemists. Chemical researchers who are interested in the mechanism and synthesis of nitro compounds will also find this book useful.

Nitro-explosives

Nitro-explosives
Title Nitro-explosives PDF eBook
Author Percy Gerald Sanford
Publisher London : C. Lockwood
Pages 364
Release 1896
Genre Celluloid
ISBN

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