R. Meyer J. Köhler A. Homburg Explosives

97 Dimethylhydrazine, unsymmetrical
has a lower explosive power than nitroglycerine, is less sensitive to
impact, and its gelatinizing effect on nitrocellulose is not as satisfactory.
Prolonged heating of glycerol yields diglycerol and a small amount of
other polyglycerols. If such mixtures of glycerol and diglycerol are
nitrated, mixtures of nitroglycerol and tetranitroglycerol are obtained;
they have a lower solidification temperature than pure nitroglycerine.
Tetranitrodiglycerol was used in the manufacture of non-freezing dynamites
when sufficient quantities of glycol from largescale industrial
syntheses were not available.
Diluent
An additive, usually inert, used to regulate the burning rate or temperature.
Dimethylhydrazine, unsymmetrical
Dimethylhydrazin; diméhylhydrazine; UDMH
colorless liquid
empirical formula: C2H8N2
molecular weight: 60.1
energy of formation: +247 kcal/kg = +1035 kJ/kg
enthalpy of formation: +198 kcal/kg = +828 kJ/kg
UDMH is used in liquid-fuel rockets both as fuel and as – Monergol by
catalytic decomposition. Precision pulses in U.S. space technique are
given by UDMH.