Topic
Ammonium perchlorate
About: Ammonium perchlorate is a research topic. Over the lifetime, 2359 publications have been published within this topic receiving 33412 citations. The topic is also known as: AP.
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TL;DR: The behavior of ammonium perchlorate (AP) was studied as a function of temperature (to 693 K) and high pressure (to ≈ 26 GPa) in a diamond anvil cell.
17 citations
TL;DR: The nuclear quadrupole interaction tensor of 14N and 35Cl in ammonium perchlorate at room temperature has been determined from nuclear magnetic resonance rotation studies of single crystals as discussed by the authors.
Abstract: The nuclear quadrupole interaction tensor of 14N and 35Cl and the diamagnetic shielding tensor of 35Cl in ammonium perchlorate at room temperature have been determined from nuclear magnetic resonance rotation studies of single crystals.
17 citations
Patent•
10 Mar 1972
TL;DR: In this paper, a curable homogeneous gas-generating composition composed essentially of oxalyl dihydrazide coolant combined with a perchlorate oxidizer selected from the group consisting of ammonium perchlorates, the alkali metal per chlorates, and the alkaline earth metal percillates, a combustible fuel binder, and propellant adjuvants is presented.
Abstract: A curable homogeneous gas-generating composition composed essentially of oxalyl dihydrazide coolant combined with: (a) a perchlorate oxidizer selected from the group consisting of ammonium perchlorate, the alkali metal perchlorates, and the alkali earth metal perchlorates, (b) a combustible fuel binder, and (c) propellant adjuvants.
17 citations
TL;DR: In this article, the decomposition preceding autoignition of an ammonium-perchlorate-based composite propellant was experimentally investigated, using thermogravimetric analysis/Fourier transform infrared spectroscopy, and hot-stage microscopy.
Abstract: The decomposition preceding autoignition of an ammonium-perchlorate-based composite propellant was experimentally investigated. Autoignition temperature is measured for a selected heating rate. At that same heating rate, differential scanning calorimetry, thermogravimetric analysis, Fourier transform infrared spectroscopy, and hot-stage microscopy are employed to study the propellant behavior leading to reaction. These experiments are conducted on both cured composite propellant and individual ingredients, including neat ammonium perchlorate and a cured binder. For a heating rate of 2 °C/min., it is determined using thermogravimetric analysis/Fourier transform infrared that ammonium perchlorate and the binder begin to react together near 150°C, whereas differential scanning calorimetry shows initial exothermic behavior after the orthorhombic-to-cubic phase transition near 240°C. This disparity is discussed and further investigated using larger-scale cubes of propellant heated in ovens at the same heating ...
17 citations
Patent•
22 Jan 1998
TL;DR: In this paper, a low temperature autoignition composition for safely initiating combustion of a main pyrotechnic charge in a gas generator or pyrochnic device exposed to flame or a high temperature environment is presented.
Abstract: The present invention relates to a low temperature autoignition composition for safely initiating combustion of a main pyrotechnic charge in a gas generator or pyrotechnic device exposed to flame or a high temperature environment. The low temperature autoignition compositions of the invention include a mixture of an oxidizer and a powdered metal, wherein the oxidizer includes silver nitrate or a comelt or mixture comprising silver nitrate and at least one of an alkali metal nitrate, an alkaline earth metal nitrate, a complex salt nitrate, a dried, hydrated nitrate, an alkali metal chlorate, an alkali metal perchlorate, an alkaline earth metal chlorate, an alkaline earth metal perchlorate, ammonium perchlorate, sodium nitrite, potassium nitrite, silver nitrite, a complex salt nitrite, a solid organic nitrate, a solid organic nitrite, or a solid organic amine, and where the metal fuel and oxidizer are present in amounts sufficient to provide an autoignition composition having an autoignition temperature of no more than about 232° C. The present invention also relates to a method for initiating a gas generator or pyrotechnic composition in a gas generator or pyrotechnic device exposed to flame or a high temperature environment. In the method of the invention, the gas generator or pyrotechnic composition is placed in thermal contact with a low temperature autoignition composition of the invention.
17 citations