Environmental Engineering Reference
In-Depth Information
8
2
12
2
5
þ
16
Oxygen balance
¼
100
¼
10
:
1
%
316
In mixed explosive, its oxygen balance can be the total of oxygen balance of
each component multiplied its corresponding weight percentage.
For example, in the rock explosive containing NH
4
NO
3
(85 %) with oxygen
balance of +0.2 g/g, TNT (11 %) with oxygen balance of
0.74 g/g and wood powder
−
(4 %) with oxygen balance of
1.38 g/g, the oxygen balance is the following:
−
¼
þ
0
:
2
85
þ
ð
0
:
74
Þ
11
þ
ð
1
:
38
Þ
4
Oxygen balance
¼
0
:
0334 g
=
g
100
Oxygen balance values of some liquid explosives and their related substances
are shown in Table
3.1
.
3.1.1.2 Oxygen Coef
cient of Explosive
Oxygen coef
cient of explosive is the saturated degree of explosive molecule with
oxygen. For example, oxygen coef
cient of C
a
H
b
O
c
N
d
explosive can be calculated
according to the following equation:
Table 3.1 Oxygen balance values of some liquid explosives and their related substances [
1
]
Name
Formula or the mixture
Oxygen balance (g/g
of explosive)
Nitroglycerine
C
3
H
5
(ONO
2
)
3
+0.035
Ethylene glycol
dinitrate
C
2
H
4
(ONO
2
)
2
0
Nitromethane
CH
3
ONO
2
+0.49
Tetranitromethane
C (ONO
2
)
4
0.393
−
Dinitropropane
C
3
H
6
N
2
O
4
0.597
−
2,2-dinitropropanol
C
3
H
6
N
2
O
5
−
0.426
Nitric acid/toluene
explosive mixture
Nitric acid/toluene = 86:14
+0.108
Hydrazine nitrate
liquid
Hydrazine nitrate/hydrated hydrazine/
methylmethane = 70:20:10
+0.221
Aluminum powder
Al
−
0.89
Wood powder
C
39
H
70
O
28
−
1.38
Paraffin
C
18
H
38
3.46
−
Asphalt
C
30
H
18
O
−
2.76
Light diesel
C
16
H
32
−
3.42
Charcoal
C
2.667
−
Paper
C
39
H
70
O
28
1.3
−
Coal
C (80 %)
−
2.559
