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RDX

RDX R.D.X. can be produced by the method given below. It is much easier to make in the home than all other high explosives, with the possible exception of ammonium nitrate. MATERIALS hexamine or methenamine 1000 ml beaker ice bath glass stirring rod thermometer funnel filter paper distilled water ammonium nitrate nitric acid (550 ml) blue litmus paper small ice bath 1) Place the beaker in the ice bath, (see page 15) and carefully pour 550 ml of concentrated nitric acid into the beaker. 2) When the acid has cooled to below 20°, add small amounts of the crushed fuel tablets to the beaker. The temperature will rise, and it must be kept below 30°, or dire consequences could result. Stir the mixture. 3) Drop the temperature below zero degrees celsius, either by adding more ice and salt to the old ice bath, or by creating a new ice bath. Continue stirring the mixture, keeping the temperature below zero for twenty minutes. 4) Pour the mixture into 1 liter of crushed ice. Shake and stir the mixture, and allow it to melt. Once it has melted, filter out the crystals, and dispose of the corrosive liquid. 5) Place the crystals into one half a liter of boiling distilled water. Filter the crystals, and test them with the blue litmus paper. Repeat steps 4 and 5 until the litmus paper remains blue. This will make the crystals more stable and safe. 6) Store the crystals wet until ready for use. Allow them to dry completely before using them. R.D.X. is not stable enough to use alone as an explosive. Composition C-1 can be made by mixing (measure by weight) R.D.X. 88% mineral oil11% lecithin 1% Knead these material together in a plastic bag. This is one way to desensitize the explosive. HMX. is a mixture of TNT and RDX; the ratio is 50/50, by weight. it is not as sensitive as unadultered RDX and it is almost as powerful as straight RDX. By adding ammonium nitrate to the crystals of RDX produced in step 5, it is possible to desensitize the R.D.X. and increase its power, since ammonium nitrate is very insensitive and powerful. Sodium or potassium nitrate could also be added; a small quantity is sufficient to stabilize the RDX. RDX. detonates at a rate of 8550 meters/second when it is compressed to a density of 1.55 g/cubic cm. Ammonium Nitrate (NH4NO3) Ammonium nitrate can be made by following the method given on page 10, or it could be obtained from a construction site, since it is commonly used in blasting, because it is very stable and insensitive to shock and heat. A well-funded researcher could also buy numerous "Instant Cold-Paks" from a drug store or medical supply store. The major disadvantage with ammonium nitrate, from a pyrotechnical point of view, is detonating it. A rather powerful priming charge must be used, or a booster charge must be added. [ ILLUSTRATIONS AVAILABLE ONLY IN COMMERICIAl PRINTED RELEASE ] The primer explodes, detonating the T.N.T., which detonates, sending a tremendous shockwave through the ammonium nitrate, detonating it. Ammonium Nitrate - Fuel Oil Solution Ammonium Nitrate - Fuel Oil Solution, also known as ANFO, is a commonly used high explosive. ANFO solves one of the major problem with ammonium nitrate: its tendency to pick up water vapor from the air. This absorption results in the explosive failing to detonate when fired. This is less of a problem with ANFO because it consists of 94% (by weight) ammonium nitrate mixed with 6% fuel oil (kerosene). The kerosene helps keep the ammonium nitrate from absorbing moisture from the air. This mixture, like straight ammonium nitrate, is very insensitive to shock. It requires a very powerful shockwave to detonate it, and is not very effective in small quantities. Usually a booster charge, consisting of dynamite or a commercial cast charge, is used for reliable detonation. Some commercial ANFO explosives have a small amount of aluminum added, increasing the power and sensitivity. These forms can often be reliably initiated by a No. 8 blasting cap. These disadvantages are outweighed by two important advantages of ammonium nitrate explosives- cost, and safety. In industrial blasting these factors are much more important than in recreational activities, and this has contributed to the popularity of these explosives. If the explosive is initiated without confinement it not propagate well, and most of the ammonium nitrate will burn and scatter, rather than detonation as most other high explosives would. Ammonium nitrate explosives are much cheaper per pound than most other explosives, with the price per pound at about 1/10 that of dynamite. Straight ammonium nitrate can be transported to the blasting site without the extract expenses incurred when transporting high explosives. At the site, the ammonium nitrate, in the form of small pellets, or prills, can be mixed with the fuel oil just prior to blasting. If too much oil is added the power of the mixture will decrease, because the extra oil will absorb some of the energy from the ammonium nitrate, and it tends to slow propagation. If commercial fertilizer is used to provide the ammonium nitrate, it must be crushed to be effective. This is because fertilizer grade ammonium nitrate is coated with a water resistant substance which helps keep moisture from decomposing the material. This material also keeps the fuel oil from soaking into the ammonium nitrate. If fertilizer grade material is poured into a vat of warm, liquified wax, the coating will be displaced by the wax, which can also serve as fuel for the ammonium nitrate. This form is more sensitive than the fuel oil mixture, and does not require as much confinement as ANFO. Bibliography:

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