Early explosion

Baratol 76% Ba(N03)2 + 24% TNT Low VOD castable explosive used in early explosive lenses... 

Early explosion. In this type of accident a shell explodes too early before the shell reaches the expected altitude in the sky. It often occurs, when the composition of the fuse is too soft and causes rapid fire, or when the length of the fuse is too short. When a Poka shell is too weak... 

Early explosion tests with gas clouds were used to derive simple empirical correlations concerning flame extension or lifetime as a function of fuel mass released, e.g., WHAZAN, a software package of the World Bank [115]. Other approaches are subjected to a turbulent jet flame [74] or the dynamics of a rising and expanding fire ball or the impact by the heat radiation flux [31]. Common to all models is the fact that they are based on a more or less empirical approach with a contentious capability of predicting the consequences of an explosion. 

Nitroglycerine and later TNT were early explosives in which all the necessary elements were in one molecule. Because the fuel and oxygen source are in one molecule, it can burn faster than a mixture. In essence, TNT has a faster detonation rate of 22,600 feet per second than, say, black powder at 1500 feet per second. 

An alternative method for ascertaining the end of the reaction, which does not involve the removal of the cover, is to conduct the exit gas through an empty wash bottle (to eict as a trap in case of sucking back ) and then collect a sample in a test-tube over water. If an inflammable gas (hydrogen) is absent, the reaction may be considered complete. Under no circumstances should the reaction be stopped until all the sodium has completely reacted too early arrest of the reaction may result in the product containing sodium hydride, which appears to be partially responsible for the explosive properties of the impure substance ... 

A product may also be defective because it was sold with iaadequate wamiags. Burch vs Amsterdam Corporatioa (11) is an early example of a failure-to-wam case. A plaintiff was badly burned ia an explosion and flash fire that occurred while he was applyiag a floor tile adhesive sold by the defendant. The label on the can of mastic adhesive warned that the product was extremely flammable and should not be used near a fire or flame. 

Although the field of controlled release technology is only a few decades old, the late 1980s and early 1990s have seen an explosion in research aimed at creating new dmg dehvery systems (12) as well as numerous pubHcations that discuss controlled release. In addition, journals and societies have been estabUshed that are devoted to the advancement of dmg dehvery systems. 

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