R. Meyer J. Köhler A. Homburg Explosives

201 Leading Lines
heat of explosion: 347 kcal/kg = 1453 kJ/kg
deflagration point: 275–280 °C = 527–535 °F
impact sensitivity: 0.25–0.5 kp m = 2.5–5 N m
Lead trinitroresorcinate is practically insoluble in water (0.04%), and is
sparingly soluble in acetone and ethanol; it is insoluble in ether,
chloroform, benzene and toluene. It is prepared by precipitation with a
solution of lead nitrate from a solution of magnesium trinitroresorcinate,
while maintaining certain concentration relationships and working
in a given temperature and pH range, with stirring, in a reaction
vessel which can be heated or cooled. The magnesium trinitroresorcinate
solution required for the precipitation of lead trinitroresorcinate
is obtained as a brown-to-black solution in a dissolving vessel by
reacting an aqueous suspension of trinitroresorcinol with magnesium
oxide powder while stirring.
Lead trinitroresorcinate is mostly employed as an initiating explosive in
the form of a mixture with lead azide forming the detonator charge; it is
particularly suited for this purpose, since it has a high ignition sensitivity,
and its hygroscopicity is low. It is also employed as the main
component of “sinoxide” charges in non-eroding percussion caps;
these charges also contain the usual additives and a low percentage
of tetrazene.
In the absence of any admixtures, lead trinitroresorcinate readily
acquires an electrostatic charge, easily causing explosion.
Specifications
net content: not less than 98 %
moisture: not more than
lead content (determination as
0.15 %
PbCrO4):
heavy metals other than lead:
43.2– 44.3 %
not more than 0.05 %
Ca + Mg: not more than 0.5 %
Na: not more than 0.07 %
pH: 5–7
nitrogen content: at least 8.8 %
bulk density: 1.3–1.5 g/cm 3
deflagration point: not below 270 °C = 518 °F
Leading Lines
Leading Wires; Zündkabel; ligne de fir
The wire(s) connecting the electrical power source with electric blasting
cap circuit.