Environmental Engineering Reference
In-Depth Information
Table 3.4 Heat of formation of some substances and explosives under constant pressure at 18
°
C
or 291 K
Chemical
Formula weight
Formula
Formation heat
△
H
f
(kJ/mol)
Triazidomelamine
204
C
3
N
12
−
91.63
Nitromethane (NM)
61
CH
3
NO
2
91.42
Trinitromethane
151
CH(NO
2
)
3
79.91
Tetranitromethane
196
C(NO
2
)
4
−
35.15
Nitroguanidine
104
CH
4
N
2
O
2
91.46
Guanidine nitrate
122
CH
6
N
4
O
3
381.58
TNT
227
C
7
H
5
N
3
O
6
73.22
1,3,5-trinitrobenzene
213
C
6
H
3
(NO
2
)
3
47.7
Picric acid (PA)
229
C
6
H
3
N
3
O
7
227.61
2,4-dinitrotoluene
182
C
7
H
6
N
2
O
4
78.24
2,6-dinitrotoluene
182
C
7
H
6
N
2
O
4
19.66
m-nitrotoluene (MNT)
137
C
7
H
7
NO
2
47.77
Nitrosourea
105
CH
3
N
3
O
3
283.05
123
CH
5
N
3
O
4
564.17
Pentaerythritol tetranitrate (PETN)
316
C
5
H
8
N
4
O
12
541.28
Nitroglycerine (NG)
227
C
3
H
5
N
3
O
9
370.83
Nitroglycol
152
C
2
H
4
N
2
O
6
274.9
Ammonium nitrate
80
NH
4
NO
3
365.51
Sodium nitrate
85
NaNO
3
467.44
Potassium nitrate
101
KNO
3
494.09
Ammonium perchlorate
117.5
NH
4
ClO
4
293.72
Potassium perchlorate
138.5
KClO
4
437.23
Water (gas)
18
H
2
O
241.75
Water (liquid)
18
H
2
O
286.06
Carbon monoxide
28
CO
112.67
Carbon dioxide
44
CO
2
395.43
Nitric oxide
30
NO
−
91.37
Nitrogen dioxide (gas)
46
NO
2
−
51.04
Nitrogen dioxide (liquid)
46
NO
2
12.97
−
Ammonia
17
NH
3
46.02
Methane
16
CH
4
76.57
Acetylene
26
C
2
H
2
223
−
Ethylene
28
C
2
H
4
48.53
−
Paraf
n
a
254
C
18
H
38
558.56
Wood powder
a
986
C
39
H
70
O
28
5690.24
Asphalt
a
394
C
30
H
18
O
594.13
Light diesel
a
224
C
16
H
32
661.07
a
Constant-volume formation heat
