Environmental Engineering Reference
In-Depth Information
Table 7.35 Property comparison between Astrolite explosives and others [
1
]
Properties
A-1-5
G
TNT + Al
Nitromethane
TNT
RDX
Physical state
Liquid
or solid
Liquid
or solid
Solid
Liquid
Solid
Solid
Power factor
(Q
v
.V
e
)
1,600
1,175
792
1,133
675
1,162
/g cm
−
3
ρ
1.6
1.41
1.70
1.14
1.57
1.65
Shock sensitivity/
Nm
900
820
280
-
-
Effect of blasting
cone comparison
(relative value)
3
4.0
1.1
1.3
1.5
2.0
1.0
1.0
-
-
-
-
v
D
/ms
−
1
8,600
6,800
6,210
6,900
8,180
-
Table 7.36 Composition of Astrolite G [
1
]
No.
Hydrazine
nitrate
×
100
Hydrazine
perchlorate
×
100
Hydrazine
×
100
Ammonia
×
100
1
91
0
7
2
2
88
0
7
5
3
84
0
7
9
4
79
0
7
14
5
79
0
13
8
6
68
19
9
7
7
59
24
10
7
8
42
40
11
7
Table 7.37 Physical properties of some Astrolite G explosives [
1
]
No.
/g cm
−
3
v
D
/ms
−
1
Nitrogen content
×
100
ρ
ʸ
s
/
°
C
ʼ
m
/mPa.s
1
2
1.42
8,600
14.5
22
2
5
1.39
8,500
3.3
20
3
9
1.35
8,200
−
9.5
16
4
14
1.31
8,100
22.2
12
−
freezing point and viscosity, thus the solid explosives at ambient temperature will
become liquid even at very low temperatures. However, if the ratio of ammonia is
excessive, the density of liquid mixture will decrease, thus the explosion velocity
and power will be reduced. Hydrazine perchlorate can serve as a sensitizer for these
explosives to improve their ability to transmit detonation, while the impact sensi-
tivity is increased simultaneously. For this reason, the ratio of hydrazine perchlorate
in the liquid explosive mixtures is generally maintained less than hydrazine nitrate.
