Environmental Engineering Reference
In-Depth Information
Table 5.43
pH values of nitroglycerine in water at 110
°
C
Nitroglycerine mass (g)
pH value at 110
°
C in different heating time
1h
2h
3h
4h
5
5.88
5.40
4.90
4.31
10
11.82
10.90
9.36
7.63
Fig. 5.15
Plot of pH of
nitroglycerine at 110
°
C
versus time [
3
]
7
6
5
4
3
2
0
1
2
3
4
Time(h)
Fig. 5.16
The decomposition
behavior of nitroglycerine on
a hot metal plate [
3
]
40
30
20
10
0
100
200
300
400
500
600
700
Temperature (°C)
ball and be burnt moderately. The explosion behavior of nitroglycerine on a hot
metal plate is shown in Fig.
5.16
.
The decomposition curve of nitroglycerine on a hot metal plate can be seen in
Fig.
5.16
. The activation energy E of the thermal decomposition of nitroglycerine
can be calculated. The activation energy E is 156.48 kJ/mol in the temperature
range of 215
C.
The activation energies of nitroglycerine decomposition at low temperatures of
150
250
°
C and 20.82 kJ/mol at 470
°
-
190
°
C, 125
150
°
C, and 20
125
°
C are 209.2, 188.28, and 178.24 kJ/mol,
-
-
-
respectively.
Nitroglycerine could be gradually and slowly decomposed under ultraviolet
irradiation for 1
3
days. In the experiment of the irradiation of light ray, which was obtained by
incandescent lights going through a 3,200
-
2 min. The decomposition behavior will be terminated after 2
-
Å
-
4,100
filter, if 3 g nitroglycerine was
irradiated at 15
C for 60 min and 6 h, pH was measured as 6.86 and 6.12,
respectively. If nitroglycerine is heated to 100
°
°
C and then irradiated by ultraviolet
