In this study, we present the synthesis of Cu–Cr–Pb nanocomposites by a simple co-precipitation method and evaluate the catalytic performance of the as-fabricated Cu–Cr–Pb nanocomposites on the thermal decomposition of ammonium perchlorate (AP). The X-ray diffraction, scanning electron microscopy, transmission electron microscopy and …
grinding is carried out by circulation of the suspension consisting of ammonium perchlorate and a dispersion liquid with a ratio of through parallel, two ball mills and one meshaal working capacity of 08 m 3 for 1 to 10 hours to obtain the particle size of the oxidizer from 2 to 1 μm for a onetime download of lecithin and within 8 to 16 hours for …
1. Introduction. Perchlorate (ClO 4 −), as an emerging pollutant, has been detected in drinking water and various edibles (Dyke et al., 2007, Shi et al., 2007, Srinivasan and Sorial, 2009, Yang and Her, 2011).Its detrimental effect as an inhibitor of iodide uptake by the thyroid is well-known. As a result, the secretion of thyroid hormones decreased, and …
Ammonium perchlorate is an inorganic compound with the formula NH4ClO4. It is the salt of perchloric acid and ammonia. It is a powerful oxidizer, which explains its main use in solid propellants, such as rockets and missiles. It has been involved in a number of accidents, such as the PEPCON disaster.
Ammonium perchlorate (AP) is a very labile species composed of the perchlorate ion ClO − 4, with chlorine in an oxidation state of +7.The high oxygen content and good thermal stability of perchlorates have made them indispensable ingredients for the pyrotechnics industry and key ingredients in solid rocket propellants [].AP-based composite …
Fluid energy mills usable for grinding or milling ammonium perchlorate, RDX or HMX and ammonium perchlorate hammer and pin mills and the following components. Больше примеров Результатов: 63, Время: 0.1259
Brief Profile. Diss Brief Profile. The Brief Profile summarizes the non-confidential data on substances as it is held in the databases of the European Chemicals Agency (ECHA), including data provided by third parties. The Brief Profile is automatically generated; note that it does not currently distinguish between harmonised classification and ...
The initiation portion consisted of 110 mg of HEP with a formulation of 80% ammonium perchlorate and 20% atomized aluminum which was inserted into a 14 mm long steel sleeve and pressed to a pressure of 2200 psi. Forty eight (48) mg of PETN was also inserted into the sleeve and also pressed to a pressure of 2200 psi.
Crystallization is the most critical step in the manufacture of ammonium perchlorate, which determines the size, shape, morphological characteristics, crystal strength, grinding characteristics ...
The catalytic effect on the thermal decomposition behavior of ammonium perchlorate (AP) of p-type nano-CuO and CuCr2O4 synthesized by an electrochemical method has …
The method involves obtaining a dispersion of ammonium perchlorate, grinding the suspension for 1 hour in the presence of grinding elements. The method is characterised by that the ammonium perchlorate is ground in a medium of …
Ammonium perchlorate (AP) is the workhorse oxidizer used in composite solid propellant. The doping of AP with transition metal compounds by physical mixing or cocrystallisation is a …
(Ammonium perchlorate is readily soluble in water.) Figure 2 illustrates how this ammonium perchlorate powder now repels water even when submerged under the water. Figure 3 shows two samples of ammonium perchlorate, one with SilanoxTM added and the other untreated, after extended exposure to a humid atmosphere.
The method involves obtaining a dispersion of ammonium perchlorate, grinding the suspension for 1 hour in the presence of grinding elements. The method is characterised by that the ammonium perchlorate is ground in a medium of butyl rubber with viscosity 1600…3000 P, with ratio of ammonium perchlorate to butyl rubber equal to 70:30.
Ammonium perchlorate (AP) is the universal oxidiser in use for all the solid rocket propellant motors used for space exploration due to its high available oxygen content and thermal decomposition without any solid residue. The inclusion of reactive species in AP directly affect the viscoelastic and ballistic properties of the propellant.
The comminution of ammonium perchlorate has been most commonly accomplished by various grinding techniques. More recently, the increased demand for very fast burning propellants has increased the search for a practical process of producing even finer ammonium perchlorate particles, that is, particles having an average particle diameter of less ...
The effectiveness of the burning rate accelerator, iron oxide (Fe 2 Ob.3), is enhanced, and a markedly improvement in the mechanical properties of a propellant composition are simultaneously achieved as a result of grinding a composite propellant paste in a roller mill instead of in a conventional sigma blade propellant mixer. The propellant paste is composed of …
Previous methods involved the mixing of dry powders by way of grinding or applying an ultrasonic bath to pulverize the larger agglomerates in the powder additive. Dry titania nanoparticles were...
US4115166A US05/003,548 US354870A US4115166A US 4115166 A US4115166 A US 4115166A US 354870 A US354870 A US 354870A US 4115166 A US4115166 A US 4115166A Authority US United States Prior art keywords ammonium perchlorate propellant divinylbenzene adduct butylene Prior art date Legal status (The legal status is an assumption and …
* Ammonium Perchlorate may affect the kidneys. * Ammonium Perchlorate is a HIGHLY REACTIVE CHEMICAL and a DANGEROUS EXPLOSION HAZARD. IDENTIFICATION Ammonium Perchlorate is an odorless, white, sand-like powder. It is used in analytical chemistry and as an etching and engraving agent. It is also used as an animal fattening agent and in …
US3498759A US459571A US3498759DA US3498759A US 3498759 A US3498759 A US 3498759A US 459571 A US459571 A US 459571A US 3498759D A US3498759D A US 3498759DA US 3498759 A US3498759 A US 3498759A Authority US United States Prior art keywords crystals zone ammonium perchlorate crystallizer dissolving Prior art date 1965-05 …
The thermal decomposition of ammonium perchlorate in vacuo and under small initial pressures of nitrogen, to suppress sublimation, has been investigated in the temperature ranges 220 to 280°C and 380 to 450°C. The experimental techniques for following the decomposition and subsequent analysis of the products are described and gas analysis results given.
Ammonium Perchlorate - 90 micron down, ground superfines - Stock #C109A - OX Slightly finer than the 90 micron listed above, requires no grinding for use when a powder AP is called for. PH 6.5 to 7.0. No ATFE required to purchase any of our ammonium perchlorate in less than full drum quantities.
Ammonium nitrate, without a reasonable amount of fuel had essentially zero risk of detonating. Obviously, this does not apply to grinding premixed pyrotechnic materials that include ammonium nitrate and fuels. Thus still will not result in a detonation, but could very well ignite and burst the grinder or blender.
For example, ammonium perchlorate cannot be fused by itself since its melting point is above its decomposition point. Thus, in order to utilize ammonium perchlorate one would first melt hydrazine nitrate and incorporate the unmelted ammonium perchlorate into the molten or heated hydrazine nitrate whereby fusion of the ammonium perchlorate with ...
Ammonium perchlorate (AP) is the most widely used oxidizer in modern CSP. Since AP account for 65e85 wt% of the total CSP, its thermal decomposition …
the method includes the steps that the powdery solid fuel air explosive containing ammonium perchlorate and a certain amount of water and surfactant are mixed to …
Composite propellant based on hydroxyl-terminated polybutadiene and ammonium perchlorate (AP) has become the workhorse propellant for modern-day missiles and space vehicles. AP is the main ingredient and is used as an oxidizer in composite propellant and accounts for approximately 70%–80% of the composition. AP plays a vital role in tailoring ...
Ammonium Perchlorate Suppliers USA. Find where to buy products from suppliers in the USA, including: distributors, industrial manufacturers in America, bulk supplies and wholesalers of raw ingredients & finished goods.. Search for products or services, then visit the American suppliers website for prices, SDS or more information. You can also view suppliers in Australia, NZ or …
In this article, nano-CuCr 2 O 4 (copper chromite)/ultrafine ammonium perchlorate (AP) composites were prepared by a ultrasonic dispersion method and a mechanical grinding method. A series of nano-CuCr 2 O 4 /ultrafine AP composites with different dispersions were prepared by controlling the compounding time to study the best catalytic effect of nano-CuCr 2 O 4 on the …