Composition C is referred to as P.E. Paper caps containing more than .35 grain of explosive composition. page 45. 3 grams of potassium iodide and 5 grams of iodide in a beaker with 50 ml of water mixed all together. It is a cast-cured explosive composition made from a homogeneous mixture of RDX in a plasticized polyurethane rubber matrix. Incoming high explosive anti-tank rounds pierce the outer steel plate, then detonate the plastic explosive. An explosive perfectly capable of producing an explosion may liberate its energy without producing one. 1-1697 2/1/2006 Military Munitions and Explosives of Concern: A Handbook for Federal Land Managers, with Emphasis on Unexploded Ordnance BLM Handbook [H-1703-2] FWS Handbook 2006 Bureau of Land Management U.S. [8]:8–109 C3 was effective but proved to be too brittle in cold weather and was replaced with C4. Toy torpedoes containing more than 5 grains of an explosive composition. [8]:8–111, A 1.25 lb demolition charge of C4 explosive, A Marine shapes a charge of C4 to cut through solid steel at a demolitions range, "Plastique" redirects here. Plastic explosive is a soft and hand-moldable solid form of explosive material. It remained a service item through the Korean War, but had marginal plasticity at the very low temperatures encountered in Korean winters, and was significantly toxic, including by vapour and skin absorption. Composition C2 had a wider temperature range at which it remained plastic, from −30 to 52 degrees C. Composition C2 was replaced by Composition C3, which was a mixture of 77% RDX and 23% explosive plasticizer. While few chemicals find use as military explosives (), these can be combined with platiscizers and other materials to create a plethora of formulations. A common commercial use of plastic explosives is for shock hardening high manganese percentage steel,[2] a material typically used for train rail components and earth digging implements. Casting is performed under vacuum when reduction of voids is a concern. In this publication we will report on initiation and sensitivity of more common RDX based explosives known as C-4 and Composition B and will include previously unpublished manganin gauge records for sustained pulse shock initiation. at 2 rpm and 21° C.) the explosive composition has a viscosity from about 50,000 to 300,000 cps, preferably from 75,000 to 200,000 cps and, most preferably from 100,000 to 150,000 cps. 2 Explosive Heat of Detonation Heat of Combustion Composition B 1,515 cal./g. PDF | The most explosive basaltic scoria cone eruption yet documented (>20 km high plumes) occurred at Sunset Crater (Arizona) ca. MOD explosives: PE2 (sheet explosive, superseded by SX2). It comes in the form of white There are three fundamental types: mechanical, nuclear, and chemical. Composition C-3 was very similar to Composition C-1, but removed the solvent and varied the exact proportions of plasticisers to improve high temperature storage. Comp -2 indicates a mixture of RDX plus nitrocotton and an explosive plasticizer containing no tetryl. composition c-4, type ii sara title iii information: waste disposal method: store and handle waste explosives as class a explosives. It was also used for the explosive lenses in the first implosion-type nuclear weapons developed by the United States. [4] Prior to World War I, the British explosives chemist Oswald Silberrad obtained British and U.S. patents for a series of plastic explosives called "Nitrols", composed of nitrated aromatics, collodion, and oxidising inorganic salts. Plastic explosives are especially suited for explosive demolition. It is so successful that it remains in army service up to the current time without any significant changes. One of the first reported and tested compositions of C-3 was very similar to earlier Composition C-2 and contained 77% RDX, 3% tetryl, 4% TNT, 1% NC, 5% NT, and 10% DNT. made. It is still referred to by this name in France and also by some Americans. For its original military use it was manufactured under the name B 1. Based on its sensitivity, it is divided into two : Initiating Explosive; Non-initiating Explosive; The examples of Explosive Chemicals. In the first embodiment of invention, industrial explosive composition comprises hexogen with particle size less than 0.7 mm, liquid petroleum product with kinematic viscosity below 2400 mm 2 /s as measured at 20°C and/or coal powder, and dense granulated ammonium nitrate and/or porous granulated ammonium nitrate. The samples of explosive brought to the U.S. by the Tizard Mission had already been packaged by the SOE ready for dropping via parachute container to the French Resistance and were therefore labeled in French, as Explosif Plastique. Comp C-2 and C3 are similar except that an explosive plasticizer is used. The Composition C family is a family of related US-specified plastic explosives consisting primarily of RDX. In fact, several different compositions have been used throughout history. There are three classes of C4, with varying amounts of RDX and polyisobutylene. It is a yellow, putty-like material. HMX and TATB based explosives at various initial temperatures (1,2). Reactive armor in tanks uses plastic explosives sandwiched between two plates of steel. 44, : Fuel and Related Compositions, subclasses 506+ for a solid fuel combined with a composition of this class, subclasses 520+ and 530+ for a solid fuel product having a defined shape or structure and subclasses 542+ for a solid fuel composition coated or impregnated for easier ignition. The most important later innovation of C-3 introduced the non-explosive plasticiser butyl phthalate instead of this mixture of nitro compounds. Petroleum jelly and potassium chlorate in a 1 to 1 ratio by weight makes a totally safe when wet compound but is highly explosive and shock sensitive when dry. Packing: 25 ±0.2 kg / sealed plastic bag 1 plastic bag / cardboard box Box Dimensions: 380 x 375 x 335 mm Box Gross Weight: 27 kg Composition A-3 Explosive Comp A-3 (RDX / Wax) Description Comp A-3 explosive consists of a pressable mixture of RDX and desensitizing wax. This explosive composition exhibits a shear thinning rheology. During World War II it was extensively used by the British Special Operations Executive (SOE) at Aston House for sabotage missions. Moisture content of composition is below 1.8% (in excess of 100%). explosive composition weight explosive Prior art date 2001-02-09 Legal status (The legal status is an assumption and is not a legal conclusion. Add 20ml of ammonium hydroxide (Ammonia water 10%) Filter. Semtex is a general-purpose plastic explosive containing RDX and PETN.1 It is used in commercial blasting, demolition, and in certain military applications. Together with RDX, these incorporate various plasticizers to decrease sensitivity and make the composition plastic. Composition B, colloquially "Comp B", is an explosive consisting of castable mixtures of RDX and TNT. C4 has a detonation velocity of 8092 m/s (26550 ft/s) at high density and velocity of 7550 m/s (24770 ft/s) at low density 1.48 g/ml. Explosive Materials Disposal Department of the Treasury Bureau of Alcohol, Tobacco and Firearms. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) The first manufactured plastic explosive was gelignite in 1875, invented by Alfred Nobel. Expired - Fee … It is used as a blasting powder and a propellant for firearms, rockets, and fireworks. Within the field of explosives engineering, plastic explosives are also known as putty explosives.[1]. Composition C4 1,575 cal./g. Detonating Cord – a flexible cord containing a center core of high explosives used to detonate other explosives. density/sensitivity test (100% inspection, see 4.5.3.1 & 4.5.3.2). Variants have different proportions and plasticisers and include composition C-2, composition C-3, and composition C-4.[1]. The original material was developed by the British during World War II, and was used in the Gammon bomb. 808, also known as Nobel 808 (often just called Explosive 808 in the British Armed Forces during the Second World War), developed by the British company Nobel Chemicals Ltd well before World War II. Composition C was superseded by Composition C2, which used a mixture of 80% RDX and 20% plasticizer. [citation needed]. [7] The material was plastic between 0 and 40 degrees C, but was brittle at colder temperatures and gummy at higher temperatures. Pursuant to the provisions of section 841(d) of Title 18, United States Code, and 27 CFR 55.23, the Director, Bureau of Alcohol, Tobacco and Firearms, must publish and revise at least annually in the FEDERAL REGISTER, a list of explosives determined to be within the coverage of 18 U.S.C. They are generally not used for ordinary blasting as they tend to be significantly more expensive than other materials that perform just as well in this application. Composition C2 had a wider temperature range at which it remained plastic, from −30 to 52 degrees C. Composition C2 was replaced by Composition C3, which was a … The composition of black powder or gunpowder is not set. The specific explosive, Composition C, was 88.3% RDX and 11.7% non-oily, non-explosive plasticizer. Packing: 25 ±0.2 kg / sealed plastic bag 1 plastic bag / cardboard box Box Dimensions: 380 x 375 x 335 mm Box Gross Weight: 27 kg Composition A-5 Explosive Comp A-5 (RDX / Stearic Acid) Description Comp A-5 explosive consists of a pressable mixture of RDX … 2 PROPERTIES OF EXPLOSIVES Since we understand an explosive material to be one which is capable of producing an explosion by its own energy, we have opened the way to a consideration of diverse possibilities. Explosive chemicals can be divided into two, as follows : 1. All can be moulded by hand for use in demolition work and packed by hand into shaped charge devices. [citation needed]. This absorbs the energy from the incoming tank round and shields the tank. Once cured, the material cannot be easily restored to a liquid state. It is a yellow, putty-like material. It had the appearance of green plasticine with a distinctive smell of almonds. production. transport in accordance with the department of transportation regulations for class a explosives. Black powder, for Cannons, canes, pistols or other devices designed for use otherwise than with paper caps. The term composition is used for any explosive material compounded from several ingredients. An explosive composition comprising 81% to 98% by weight of an explosive agent, 1% to 15% by weight of a solid fuel and 0.5% to 2% by weight of a polymeric adherent wherein the explosive agent, solid fuel and polymeric adherent are dispersed throughout the composition. [2] While Composition C-3 had a much wider serviceable temperature range than Composition C, it could not be stored at elevated temperatures. obtain approval for appropriate safety agency before disposal. Class 2 Composition A-5 will use only virgin RDX (see 6.12.1) in its feedstock for Composition A-5. It also opened the way to begin study of new non-explosive low-toxicity plasticisers (esters of dicarboxylic acid) and binder (branched polymers). An early use of plastic explosives was in the warhead of the Petard demolition mortar of the British Armoured Vehicle Royal Engineers (AVRE); said mortar was used to destroy concrete fortifications encountered during Operation Overlord (D-Day). Experimental Technique Table 1 Table. Black powder is the name given to the earliest known chemical explosive. It suffered from a relatively limited range of serviceable temperatures, and was replaced by Composition C-2 around 1943. In particular, in the 1940s the format "Composition
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