It also opened the way to begin study of new non-explosive low-toxicity plasticisers (esters of dicarboxylic acid) and binder (branched polymers). C-4 or Composition C-4 is a powerful plastic explosive compound. H-1703-2 Military Munitions and Explosives of Concern (Public) BLM Manual Handbook iii Rel. made. It is used as the main explosive filling in artillery projectiles, rockets, land mines, hand grenades and various other munitions. While Composition C-3 had a much wider serviceable temperature range than Composition C, it could not be s… 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. 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. obtain approval for appropriate safety agency before disposal. It is understood that the compositions of these two explosives are as follows: RDX Composition C RDX Composition C2 Cyclonite, % 88.3 78.7 Plasticizer, % 11.7 - MNT, % - 2.70 DNT (oil), % 12.0 TNT, % 5.0 Wet nitrocellulose, pyroxylin, % 0.3 Wet' nitrocellulose, pyro, % 0.3 Special solvent, % 1.0 OBJECT: 2. Reactive armor in tanks uses plastic explosives sandwiched between two plates of steel. [3]:9, The first plastic explosive was gelignite, invented by Alfred Nobel in 1875. An insensitive melt-cast explosive composition incorporating on the one hand a meltable part formed of at least one meltable explosive and, on the other hand, a solid part incorporating oxynitrotriazole (ONTA) and cyclonite (RDX). [2] While Composition C-3 had a much wider serviceable temperature range than Composition C, it could not be stored at elevated temperatures. Variants have different proportions and plasticisers and include composition C-2, composition C-3, and composition C-4.[1]. 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. It is a yellow, putty-like material. Casting is performed under vacuum when reduction of voids is a concern. Comp -2 indicates a mixture of RDX plus nitrocotton and an explosive plasticizer containing no tetryl. The original use of Nobel 808 supplied by the SOE (see § History) was for sabotage of German installations and railways in Occupied Europe. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Plastic explosives are especially suited for explosive demolition. This absorbs the energy from the incoming tank round and shields the tank. Class 2 Composition A-5 will use only virgin RDX (see 6.12.1) in its feedstock for Composition A-5. [citation needed]. 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 … Class 2 - Explosive Composition A-5 which has passed the. 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. The specific explosive, Composition C, was 88.3% RDX and 11.7% non-oily, non-explosive plasticizer. [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. It is composed of explosives, plastic binder, plasticizer and usually a marker or odorizing taggant chemical, such as 2,3-dimethyl-2,3-dinitrobutane (DMDNB) to help detect the explosive and identify its source. It is a yellow, putty-like material. [citation needed], One of the simplest plastic explosives was Nobel's Explosive No. Firecrackers or salutes exceeding 5 inches in length or 3/4 inch in diameter. 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. All can be moulded by hand for use in demolition work and packed by hand into shaped charge devices. 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. There are three classes of C4, with varying amounts of RDX and polyisobutylene. [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. Comp C-2 and C3 are similar except that an explosive plasticizer is used. ), Composition C-3 consists of 77%–85% cyclonite (RDX) and 15%–23% gel made out of liquid nitro compounds (e.g. [4] liquid DNT and small amount of NT) and nitrocellulose or butyl phthalate and nitrocellulose.[3]. Composition C is referred to as P.E. Table 1 Table. 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. Comments, suggestions, or questions on this document should. It had the appearance of green plasticine with a distinctive smell of almonds. For other uses, see, Convention on the Marking of Plastic Explosives,,,,,,,,,, "Defence Standard 13–31 Demolition Stores and Equipment 1973 (Amended 1974)", "Joint Service Publication 403 Handbook of Defence Land Ranges Safety, Volume 5, Chapter 3", "CEUK Demolition Stores Capability Brochure", "Advanced Performance Bangalore Torpedo (2011 brochure)", "PW4 Mouldable Plastic Explosive Type [Circa 2010]", "PW4 Mouldable Plastic Explosive Type [Circa 2014]",,,, Short description is different from Wikidata, Articles with unsourced statements from November 2013, Articles with unsourced statements from October 2011, Creative Commons Attribution-ShareAlike License, Netherlands: Knaverit S1 (light orange-colored), South Africa: PE9 (Composition C-4 equivalent). Plastic explosive is a soft and hand-moldable solid form of explosive material. For its original military use it was manufactured under the name B 1. It was also used for the explosive lenses in the first implosion-type nuclear weapons developed by the United States. The original material was developed by the British during World War II, and was used in the Gammon bomb. 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. It suffered from a relatively limited range of serviceable temperatures, and was replaced by Composition C-2 around 1943. Expired - Fee … Since 1960 the mixture of C-3 has contained: It is less volatile than C-4 and has less tendency to harden at low temperature. 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. Composition C-1 contained a slightly smaller proportion of RDX, but used an explosive plasticiser, which contained tetryl, nitrocellulose and a mixture of nitroaromatics produced during the manufacture of TNT (containing trinitrotoluene, dinitrotoluene and mononitrotoluene), and a trace of solvent. Semtex became notoriously popular with terrorists because it was, until recently, extremely difficult to detect,2 as in the case of Pan Am Flight 103. The composition of black powder or gunpowder is not set. The origin of the obsolete term "plastique" dates back to the Nobel 808 explosive introduced to the U.S. by the British in 1940. The Composition C family is a family of related US-specified plastic explosives consisting primarily of RDX. Composition B, colloquially "Comp B", is an explosive consisting of castable mixtures of RDX and TNT. The British used a plastic explosive during World War II as a demolition charge. transport in accordance with the department of transportation regulations for class a explosives. Non-MOD explosives: Composition C-4 (M5A1 and M112 charges produced by Mondial Defence Systems), USA: Composition C-4 (pure white block or sheet, current in-service charges designated as M112 and M118), This page was last edited on 2 January 2021, at 12:09. 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). This explosive composition exhibits a shear thinning rheology. 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. This material consisted of 88.3% RDX and a mineral oil-based plasticiser and phlegmatiser. 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.