Environmental Engineering Reference
In-Depth Information
5.3.4.1 Chemical Physical Properties
Molecular formula: C 3 H 6 N 2 O 7
Chemical structure:
Molecular weight: 182.06
Oxygen balance:
17.58 % (CO 2 -based)
Nitrogen content: 15.38 %
The commercial isomers of glycerine dinitrate have a density of 1.47 (15
°
C) and
are frozen at 40
C
will not be decomposed. Glycerine dinitrate can be dissolved into most of organic
reagents, but carbon tetrachloride and gasoline. It can dissolve collodion easily. The
solubility in water is 8.6 % at 20
°
C. At the pressure of 15 mmHg, the distillate collected at 146
°
C[ 24 ].
The heat resistance of glycerine dinitrate is better than nitroglycerine. In the Abel
test, the decomposition phenomenon only can be observed at set temperature for
16 days. At 150
°
C, brown nitrogen oxide can be released. Its explosive decom-
position temperature is above 170
°
°
C.
5.3.4.2 Explosive Property of Glycerine Dinitrate
The explosive decomposition of glycerine dinitrate takes place based on the fol-
lowing equation.
C 3 H 5 OH
ðÞ
ð
ONO 2
Þ 2 !
2CO 2 þ
CO
þ
2H 2 O
þ
N 2 þ
H 2 þ
5024
:
98 J
=
g
The shock sensitivity of glycerine dinitrate is less than nitroglycerine with the
characteristic height of about 7
-
10 cm for 2 kg falling weight. The characteristic
ʱ
height is 90
-
100 cm for hydrate crystals of
-isomer and 30
-
40 cm for liquid
ʲ
-isomer.
The lead-block value with water
filling of glycerine dinitrate is 500 cm 3 , equals
to 82 % power of nitroglycerine. The detonation velocity of the blasting gelatin
with 92 % glycerine dinitrate is 3,320 m/s, while the corresponding value for
nitroglycerine is 7,400 m/s. The detonation velocity of dynamite explosive with
75 % diatomaceous earth produced by glycerine dinitrate is 4,300 m/s.
 
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