Common flammable gas explosion limits


Published.

2020-06-30

Common flammable gas explosion limits
From China Gas, Issue 2, 2007

Serial number Name Chemical formula Explosion limit in air/%
Lower limit Upper limit
30 aniline C6H5NH2 1.2 11
31 benzene C6H6 1.2 8
32 benzaldehyde C6H5CHO 1.4  
33 Benzyl chloride C6H5CH2Cl 1.1  
34 Bromobutane C3H7CH2Br 2.5  
35 ethyl bromide CH3CH2Br 6.7 11.3
36 butadiene CH2CHCHCH2 2.0 11.5
37 butane C4H10 1.9 8.5
38 butanol C4H9OH 1.4 11.3
39 butene C4H8 1.6 9.3
40 Butyraldehyde C3H3CHO 1.4 12.5
41 Butyl butyrate CH3COOCH 1.2 8.0
42 Butyl methyl ketone C4H9COCH3 1.2 8.0
43 carbon disulfide CS2 1.0 60
44 carbon monoxide CO 12.5 74
45 chlorobenzene C6H5Cl 1.3 11
46 Chlorobutane C3H7CH2Cl 1.8 10.1
47 Chloroethane CH3CH2Cl 3.8 15.4
48 Chloroethanol CH2ClCH2OH 5 16
49 vinyl chloride CH2CHCl 3.8 31
50 Chloromethane CH3Cl 8.1 17.4
51 2-Chloropropane CH3CHClCH3 2.6 11.1
52 Methylphenol C6H5OH 1.1  
53 Cyclobutane CH2CH2CH2CH2 1.8  
54 Cyclohexane CH2(CH2)4CH2 1.2 8.3
55 Cyclohexanol CH2(CH2)3CHOHCH2 1.2  
56 Cyclohexanone CH2(CH2)3COCH2 1.3 9.4
57 cyclopropane CH2CH2CH2 2.4 10.4
58 Naphthane C10H18 0.7 4.9
59 Cyclohexene CH2(CH2)2CHCHCH2 1.2  
60 Diacetone alcohol (CH3)2COHCH2COCH3 1.8 6.9
61 Dibutyl ether C4H9OC4H9 0.9 8.5
62 Dichlorobenzene C6H4C12 2.2 9.2
63 Diethylamine (C2H5)2NH 1.7 10.1
64 dimethylamine (CH3)2NH 2.8 14.4
65 Xylamine (CH3)2C6H3NH2 1.2 7
66 Dioxane (CH2)4O2 1.9 22.5
67 Propylene oxide OCH2CH2CH2 1.8 37
68 Ethoxyethanol C2H5OCH2CH2OH 2.1 15.7
69 ethyl acetate CH3COOC2H5 1.7 11.5
70 Ethyl acrylate CH2CHCO2C2H5 1.0 13
71 Phenylethane C6H5C2H5 2.6 7.8
72 ethylene oxide CH2CH2O 2.8 100
73 Ethanethiols C2H6S 2.0 18
74 Ethyl methyl ether C2H5OCH3 1.8 10.1
75 Ethyl methyl ketone C2H5COCH3 7 11.5
76 formaldehyde HCHO 0.9 73
77 Light oil   1.8 6
78 nitrobenzene C6H5NO2 7.1  
79 nitromethane CH3NO2 1.3 63
80 phenol C6H5OH 1.1 9.5
81 styrene C6H5CHCH2 1.0 8.0
82 ethylbenzene C6H5C2H5 1.0 7.8
83 Ethyl formate HCOOC2H5 2.7 16.5
84 p-Diane C4H8O2 2.0 22
85 isobutane i-C4H10 1.8 8.4
86 naphthalene C10H8 0.9 5.9
87 nonane CH3(CH2)7CH3 0.7 5.6
88 Nonanol CH3(CH2)7CH2OH 0.8 6.1
89 Secondary aldehyde (C2H4O)3 1.3  
90 pentane C5H12 1.1 8.0
91 amyl alcohol C5H11OH 1.2 10.5
92 Propylamine C3H7NH2 2.0 10.4
93 Propyl tetrayl ketone C3H7COCH3 1.5 8.2
94 pyridine C5H5N 1.7 12.0
95 Tetrahydrofuran C4H8O 2.0 12.4
96 Tetrahydrositol C4H7OICH2OH 1.5 9.7
97 diethylamine (C2H5)3N 1.2 8
98 Trimethylamine (CH3)3N 2.0 11.6
99 Trioxane (CH2O)3 3.0 29
100 turpentine   0.8  
101 hexane C6H14 1.2  
102 Hexanol C5H11CH2OH 1.2  
103 heptane CH3(CH2)5CH3 1.1 6.7
104 Isopropyl nitrate (CH3)2CHONO2 2 100
105 Methoxyethanol CH3OC2H4OH 2.5 14
106 Methyl acetate CH3OC2CH3 3.1 16
107 Methyl acrylate CH2CHCO2CH3 2.4 25
108 methylamine CH3NH2 4.9 20.7
109 Methylcyclohexane CH3C6CH11 1.15 6.7
110 Methyl formate HCO2CH3 5 23
111 Ethylamine (gas) C2H7N 3.5 14.0
112 Acetonitrile C2H3N 4.4 16.0
113 acetic anhydride C4H6O3 2.9 10.3
114 (n) Decane C10H22 0.8 5.4
115 propionaldehyde C3H6O 2.9 17
116 *** C3H4O 2.8 31
117 ethyl ether C2H6O 3.4 18
118 Methyl ether C3H8O9 2 10.1
119 Methanethiol CH4S 3.9 21.8
120 Methyl sulfoxide C2H6OS 2.6 28.5
121 isopropanol C3H8O 2.3 12.7
122 Isobutanol C4H10O 1.7
(100℃)
10.9
(100℃)
123 Isobutyl ether C4H14O 1.4 21
124 Isopropylamine C3H9N 2.0 10.4
125 (n) octane C8H18N 1.0 4.66
126 hydrazine N2H4 4.7 100
127 Carbon oxysulfide COS 12 29
128 Chloropropane C3H7Cl 2.6 11.1
129 Chloropropylene C3H5Cl 3.3 11.1
130 methyl bromide CH3Br 10 10

 

 

 

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