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R. Meyer J. Köhler A. Homburg Explosives

R. Meyer J. Köhler A. Homburg Explosives

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Nitroglycerine<br />

oxygen balance: +3.5%<br />

nitrogen content: 18.50%<br />

volume of explosion gases: 716 l/kg<br />

heat of explosion<br />

(H2O liq.): 1594 kcal/kg = 6671 kJ/kg<br />

(H2O gas): 1485 kcal/kg = 6214 kJ/kg<br />

specific energy: 106.6 mt/kg = 1045 kJ/kg<br />

density: 1.591 g/cm 3<br />

solidification point:<br />

+13.2 °C = 55.8 °F (stable modification)<br />

+2.2 °C = 35.6 °F (unstable modification)<br />

specific heat: 0.32 kcal/kg = 1.3 kJ/kg<br />

vapor pressure:<br />

Pressure Temperature<br />

millibar °C °F<br />

0.00033 20 68<br />

0.0097 50 122<br />

0.13 80 176<br />

0.31 90 194<br />

lead block test: 520 cm 3 /10 g<br />

detonation velocity, confined:<br />

7600 m/s = 25000 ft/s at r = 1.59 g/cm 3<br />

impact sensitivity: 0.02 kp m = 0.2 N m<br />

friction sensitivity:<br />

up to 36 kp = 353 N pistil load no reaction<br />

critical diameter of steel sleeve test: 24 mm<br />

224<br />

Nitroglycerine is almost insoluble in water, but is soluble in most<br />

organic solvents; it is sparingly soluble in carbon disulfide. It readily<br />

dissolves a large number of aromatic nitro compounds and forms gels<br />

with soluble guncotton. Its volatility is negligible, but is still sufficient to<br />

cause headaches.<br />

The acid-free product is very stable, but exceedingly sensitive to<br />

impact. The transportation of nitroglycerine and similar nitrate esters is<br />

permitted only in the form of solutions in non-explosive solvents or as<br />

mixtures with fine-powdered inert materials containing not more than<br />

5% nitroglycerine. To avoid dangers, internal transport within the<br />

factories is made by water injection (W Water-driven Injector Transport).<br />

Transport of pure nitroglycerine and similar products outside<br />

factory premises is difficult; in the U.S., special vessels have been<br />

developed in which the oil is bubble-free covered with water without air<br />

bubbles which raise the impact sensitivity considerably. The nitrogly-

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