Nitroglycerin-Nitrocellulose Dynamites

A mixture with nitroglycol is now generally used instead of pure nitroglycerine. Gelatine dynamites are similar in composition. They contain nitroglycerine (and nitroglycol) and are gelatinized with nitrocellulose. 

ETN forms colorless or white crystals, leaflets, or powder with a melting point of 61 Celsius. It is soluble in alcohol, ether, and glycerol, but insoluble in water. ETN explodes on strong percussion, but still requires a primary explosive for proper initiation when used in explosives compositions. ETN is used as a substitute for PETN in blasting cords, for use in explosives compositions, and nitroglycerine free dynamites when mixed with TNT, nitrocellulose, or ammonium nitrate. ... 

Nobel invented gelatinous dynamite in 1875 by accident. He investigated the effect of nitroglycerine on the collodion (nitrocellulose in a mixture of ether and alcohol) that he used to treat a cut finger and found that it produced a tough plastic material with adjustable viscosity and high water resistance. 

Other explosives, discovered in the nineteenth century, were nitroglycerine, a liquid that is absorbed in a solid to make dynamite, and nitrocellulose, a solid that produces less smoke (smokeless powder). They are made by heating glycerine and cellulose with nitric acid, a process that adds nitro (-NO2) groups. Another important explosive is trinitrotoluene, made by heating (very carefully) toluene in nitric acid,... 

Simultaneously, the discovery of nitroglycerine in 1845 by Sobrero in Italy, and Nobel s work with dynamite, led to the development of a new generation of true high explosives that were far superior to black powder for many blasting and explosives applications. The development of modern smokeless powder -using nitrocellulose and nitroglycerine - led to the demise of black powder as the main propellant for guns of all types and sizes. 

Nitrocellulose (NC) Main component in smokeless powder, i.e., gun cotton. Nitroglycerin (NG) Explosive material, originally the basis for dynamite. Oleander extract A poison. 

When nitrocellulose and nitroglycerine were invented, attempts were made to use these as ingredients for coal mining explosives instead of blackpowder but they were found not to be suitable for use in gaseous coal mines. It was not until the development of dynamite and blasting... 

Examples of secondary explosives are TNT, tetryl, picric acid, nitrocellulose, nitroglycerine, nitroguanidine, RDX, HMX and TATB. Examples of commercial secondary explosives are blasting gelatine, guhr dynamite and 60% gelatine dynamite. 

Gelatine dynamite 25-55% Nitroglycerine, 1-5% nitrocellulose, woodmeal Inorganic nitrates... 

Heat test (Abel test). The oldest and the most popular qualitative test is the heat test introduced in Great Britain by Abel in 1865 [86]. It is called the Abel test on the Continent of Europe and the KI starch test in the U.S.A. It consists in warming a sample of nitroglycerine or nitrocellulose (or dynamite or smokeless powder) in a test tube in which a potassium iodide-starch paper moistened with aqueous glycerol solution is suspended (Fig. 1). Warming is carried out until the... 

Dynamite was the first trade name introduced for a commercial explosive by Alfred Nobel it was nitroglycerine absorbed in kieselguhr (Guhr dynamite). Bonding of nitroglycerine by gelatinization with nitrocellulose was discovered by Nobel at a later date. 

Uses As gelatinizing agent for nitroglycerine in manufacture of Blasting Gelatine and Gelatine Dynamite. See Nitrocellulose, Oktonitrocellulose, Tetranitrocel-lulose, Enneanitrocellulose, Dekanitrocellulose. 

One of the most important prodncts in the explosives industry. For most purposes it is too sensitive to be used alone. It became the first high explosive for hlast-ing purposes when Nobel made its use comparatively safe by absorbing it in infusorial earth (See Dynamite). It was also Nobel who provided for maximum utilization of the explosive strength of nitroglycerine hy gelatinizing it with nitrocellulose (See Blasting Gelatine). 

The liquid is widely used when admixed with nitroglycerine for cold weather resistant dynamites and blasting compositions, It can be slurried with nitrocellulose, nitro starch, and other secondary explosives for use in blasting dynamites. EGDN is also... 

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