Formula Containing Explosives

Explosifs 6 I aluminium. Fr for Aluminized Explosives. Several Fr formulations are listed in Vol I of Encycl under ALUMINUM CONTAINING EXPLOSIVES, on p A146-L. Examination in 1902 by CSE (Commission des Substances Explosives) showed that some of these exp Is, as, for example, Formula. 226 (p A146 L)> were more powerful than PA (Picric Acid). More recently (1948 1950), Medard (p A148-L) determined the properties of die following Fr aluminized explosives ... 

Sadovnikov [6] measured the change in pressure in explosions of hydrogen mixtures at p0 — 760 mm in a cylinder of 8 liters volume. His data on the cooling of the explosion products for different hydrogen mixtures all fit very well into an empirical formula containing the same constant for all mixtures ... 

Formula 226(Explosif). See under Aluminum — Containing Explosives A146-L... 

Fission Bomb, See under Atomic Bomb A490L Fission Reaction A501-L Fluorine Azide A53 L Forcites (Belgian and French) A36S(table) Formula 226(Explosif). See under Aluminum — Containing Explosives A146-L... 

When vapor bubbles eollapse inside the pump the liquid strikes the metal parts at the speed of sound. This is the elicking and popping noise we hear from outside the pump when we say that eavitation sounds like pumping marbles and roeks. Sound travels at 4,800 ft per second in water. The velocity head formula gives a elose approximation of the energy contained in an imploding cavitation bubble. Remember that implosion is an explosion in the opposite direction. 

Anhydrous Ethyl Ether. This is for those formulas calling for dry, pure, or anhydrous ether. The ether product from above is dried over thin slices of metallic sodium (metallic sodium wire works well also) for 24 hours. Then the ether is distilled on a water bath, over fresh (fresh means a different batch than what you used to dry with) metallic sodium. Note Ether develops explosive peroxides upon sitting for any length of time, even if just purchased from a supply house. Therefore, before handling ether, which has been stored, shake with ferrous sulphate or with lead peroxide. To keep peroxides from forming in fresh ether add several sections of copper or iron wire to the dark container and store in a cool place. 

The element carbon (symbol C) is almost always found in nature covalently bonded to other carbon atoms or to a variety of other elements (most commonly H, O, and N). Due to the presence of carbon-containing compounds in all living things, the chemistry of carbon compounds is known as organic chemistry. Most high explosives are organic compounds. TNT (trinitrotoluene), for example, consists of C, H, N, and O atoms, with a molecular formula of C yH 5N P e. We will encounter other organic compounds in our study of fuels and binders in pyrotechnic mixtures. 

An alternative method for calculating the oxygen balance is shown in Equation 5.2. Here, the oxygen balance Q is calculated from an explosive containing the general formula with molecular mass M. 

---