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: In this article, molybdenum disulfide with high-active 1T phase (1T-MoS2) was engineered by a phase-manipulation strategy through chemical Li-intercalation from its original state (2H-MOS2).
22 citations
TL;DR: In this article, an experimental investigation on the determination of ballistic properties and burning behavior of a composite solid propellant for airbag application was conducted using a high-pressure optical strand burner.
22 citations
TL;DR: The contribution of exotherme, condensed-phase reactions to ignition and deflagration of propellants is examined in this paper, where the authors show that a thermal runaway in the condensed phase can account for the ignition phenomena observed.
22 citations
Patent•
16 Mar 1971TL;DR: In this article, a process for preparing ultra-fine ammonium perchlorate particles is described, in which an aqueous solution of ammonium permchlorate is dispersed in an organic liquid to form a water-in-oil emulsion.
Abstract: A process for preparing ultra-fine ammonium perchlorate particles is provided. In this process an aqueous solution of ammonium perchlorate is dispersed in an organic liquid to form a water-in-oil emulsion. The emulsion is frozen and freeze dried to produce the ultra-fine particles.
22 citations
TL;DR: It is concluded that ammonium ions contribute significantly to the toxicity of AP but not to the direct antithyroid effects of perchlorate.
Abstract: Ammonium perchlorate (AP) is a widespread military waste product in the United States and is a potent thyroid function disruptor in all vertebrates tested thus far. To determine the relative contribution of ammonium ions to the toxicity of AP, we exposed embryonic and larval Xenopus laevis to various concentrations of sodium perchlorate (SP) or ammonium chloride (AC). Ammonium perchlorate was significantly more lethal than SP; 5-d LC50s were 83 and 2,780 mg/L, respectively. To determine whether ammonium ions contribute to the antithyroid effects of AP, we exposed embryonic and larval X. laevis to two sublethal, environmentally relevant concentrations of AP or identical concentrations of AC or SP. At the smaller concentration, only AP delayed metamorphosis and reduced hindlimb growth. Sodium perchlorate and AP, but not AC, prevented metamorphosis and reduced hindlimb growth at the greater concentration. Although AP was slightly more effective in reducing outward manifestations of thyroid disruption, both perchlorate salts, unlike AC, caused profound histopathologic changes in the thyroid. Exposure to the higher concentration of either perchlorate salt produced a feminizing effect, resulting in a skewed sex ratio. We conclude that ammonium ions contribute significantly to the toxicity of AP but not to the direct antithyroid effects of perchlorate.
22 citations