Environmental emergencies: list of exploding or hazardous substances
This list of substances is divided into three parts. Each can be displayed in ascending or descending order by clicking on the appropriate arrow in any of the headings.
Part 1 - Substances that are likely to explode
Name of the substance | CAS registry number | UN number (if applicable) | Concentration (% mass/mass) | Minimum quantity (tonnes) |
---|---|---|---|---|
Ethyl ether (diethyl ether) |
60-29-7 |
1155 |
1 |
4.50 |
Benzene |
71-43-2 |
1114 |
1 |
10 |
Methane |
74-82-8 |
1971 & 1972 |
1 |
4.50 |
Ethane |
74-84-0 |
1035 & 1961 |
1 |
4.50 |
Ethylene |
74-85-1 |
1038 & 1962 |
1 |
4.50 |
Acetylene |
74-86-2 |
1001 |
1 |
4.50 |
Methylamine |
74-89-5 |
1061 |
1 |
4.50 |
Propane |
74-98-6 |
1978 |
1 |
4.50 |
Methylacetylene (propyne) |
74-99-7 |
1060 |
1 |
4.50 |
Ethyl chloride |
75-00-3 |
1037 |
1 |
4.50 |
Vinyl chloride |
75-01-4 |
1086 |
1 |
4.50 |
Vinyl fluoride |
75-02-5 |
1860 |
1 |
4.50 |
Ethylamine |
75-04-7 |
1036 & 2270 |
1 |
4.50 |
Acetaldehyde |
75-07-0 |
1089 |
1 |
4.50 |
Ethyl mercaptan |
75-08-1 |
2363 |
1 |
4.50 |
Dimethyl sulphide |
75-18-3 |
1164 |
1 |
150 |
Cyclopropane |
75-19-4 |
1027 |
1 |
4.50 |
Isobutane |
75-28-5 |
1969 |
1 |
4.50 |
2-Chloropropane (isopropyl chloride) |
75-29-6 |
1027 |
1 |
4.50 |
Isopropylamine |
75-31-0 |
1221 |
1 |
4.50 |
Vinylidene chloride |
75-35-4 |
1303 |
1 |
4.50 |
Difluoroethane (1,1-difluoroethane) |
75-37-6 |
1030 |
1 |
4.50 |
1,1-Difluoroethylene (vinylidene fluoride) |
75-38-7 |
1959 |
1 |
4.50 |
Trimethylamine |
75-50-3 |
1083 & 1297 |
1 |
4.50 |
tert-Butylamine (2-amino-2-methylpropane) |
75-64-9 |
1125 |
1 |
150 |
Tetramethylsilane |
75-76-3 |
2749 |
1 |
4.50 |
Isopentane (2-Methylbutane) |
78-78-4 |
1265 |
1 |
4.50 |
Isoprene |
78-79-5 |
1218 |
1 |
4.50 |
Trifluorochloroethylene (chlorotrifluoroethylene) |
79-38-9 |
1082 |
1 |
4.50 |
Ethylbenzene |
100-41-4 |
1175 |
1 |
7000 |
Styrene |
100-42-5 |
2055 |
10 |
4.50 |
Butane |
106-97-8 |
1011 |
1 |
4.50 |
1-Butene (alpha-butylene) |
106-98-9 |
1012 |
1 |
4.50 |
1,3-Butadiene |
106-99-0 |
1010 |
1 |
4.50 |
Ethylacetylene |
107-00-6 |
2452 |
1 |
4.50 |
2-Butene |
107-01-7 |
1055 |
1 |
4.50 |
Vinyl methyl ether |
107-25-5 |
1087 |
1 |
4.50 |
Methyl formate |
107-31-3 |
1243 |
1 |
4.50 |
Toluene |
108-88-3 |
1294 |
1 |
2500 |
n-pentane (Pentane) |
109-66-0 |
1265 |
1 |
4.50 |
1-Pentene |
109-67-1 |
1108 |
1 |
4.50 |
Vinyl ethyl ether (ethyl vinyl ether) |
109-92-2 |
1302 |
1 |
4.50 |
Ethyl nitrite |
109-95-5 |
1194 |
1 |
4.50 |
Cyclohexane |
110-82-7 |
1145 |
1 |
550 |
Propylene |
115-07-1 |
1077 |
1 |
4.50 |
Dimethyl ether (methyl ether) |
115-10-6 |
1033 |
1 |
4.50 |
Isobutylene (2-Methylpropene) |
115-11-7 |
1055 |
1 |
4.50 |
Tetrafluoroethylene |
116-14-3 |
1081 |
1 |
4.50 |
Dimethylamine |
124-40-3 |
1032 & 1160 |
1 |
4.50 |
Cyanogen |
460-19-5 |
1026 |
1 |
4.50 |
Propadiene |
463-49-0 |
2200 |
1 |
4.50 |
Carbonyl sulphide (cabon oxysulfide) |
463-58-1 |
2204 |
1 |
4.50 |
2,2-Dimethylpropane |
463-82-1 |
2044 |
1 |
4.50 |
1,3-Pentadiene |
504-60-9 |
No number |
1 |
4.50 |
2-Chloropropene (2-chloropropylene) |
557-98-2 |
2456 |
1 |
4.50 |
3-Methyl-1-butene |
563-45-1 |
2561 |
1 |
4.50 |
2-Methyl-1-butene |
563-46-2 |
2459 |
1 |
4.50 |
Cis-2-Butene (2-butene-cis) |
590-18-1 |
1055 |
1 |
4.50 |
1-Chloropropene (1-chloropropylene) |
590-21-6 |
No number |
1 |
4.50 |
Bromotrifluoroethylene |
598-73-2 |
2419 |
1 |
4.50 |
trans-2-Butene (2-Butene-trans) |
624-64-6 |
1055 |
1 |
4.50 |
Cis-2-Pentene (beta-cis-amylene) |
627-20-3 |
No number |
1 |
4.50 |
trans-2-Pentene (trans-beta-amylene) |
646-04-8 |
No number |
1 |
4.50 |
1-Buten-3-yne (vinyl acetylene) |
689-97-4 |
No number |
1 |
4.50 |
Xylenes |
1330-20-7 |
1307 |
1 |
8000 |
Hydrogen |
1333-74-0 |
1966 |
1 |
4.50 |
Dichlorosilane |
4109-96-0 |
2189 |
1 |
4.50 |
Ammonium nitrate, solid |
6484-52-2 |
1942, 2067, 2068, 2069, 2070, 2071, 2072 & 2426 |
60 |
20 |
Ammonium nitrate, solution |
6484-52-2 |
1942, 2067, 2068, 2069, 2070, 2071, 2072 & 2426 |
81 |
20 |
Hydrogen peroxide |
7722-84-1 |
2015 |
10 |
9.10 |
Sodium chlorate |
7775-09-9 |
1495 |
10 |
6.80 |
Ammonium perchlorate |
7790-98-9 |
1442 |
10 |
4.50 |
chlorine monoxide (dichlorine oxide) |
7791-21-1 |
No number |
10 |
4.50 |
Silane |
7803-62-5 |
2203 |
10 |
4.50 |
Liquefied natural gas |
8006-14-2 |
1972 |
10 |
9.10 |
Unleaded gasoline |
8006-61-9 |
1203 |
10 |
9.10 |
Naphtha |
8030-30-6 |
1268 |
10 |
6.80 |
Trichlorosilane |
10025-78-2 |
1295 |
1 |
4.50 |
Butylene (butene) |
25167-67-3 |
1012 |
10 |
2.27 |
Gasoline (motor fuel) |
86290-81-5 |
1203 |
1 |
4.50 |
Part 2 - Substances hazardous when inhaled
Name of the substance | CAS registry number | UN number (if applicable) | Concentration (% mass/mass) | Minimum quantity (tonnes) |
---|---|---|---|---|
Formaldehyde, solution |
50-00-0 |
1198 & 2209 |
10 |
6.80 |
1,1-Dimethylhydrazine |
57-14-7 |
1163 |
10 |
6.80 |
Methylhydrazine (monomethyl hydrazine) |
60-34-4 |
1244 |
10 |
6.80 |
Acetic acid |
64-19-7 |
2789 & 2790 |
95 |
6.80 |
Chloroform (trochloromethane) |
67-66-3 |
1888 |
10 |
9.10 |
Methyl bromide |
74-83-9 |
1062 |
10 |
2.27 |
Methyl chloride |
74-87-3 |
1063 |
10 |
4.50 |
Methyl iodide |
74-88-4 |
2644 |
10 |
4.50 |
Hydrogen cyanide (Hydrocyanic acid) |
74-90-8 |
1051, 1613 & 1614 |
10 |
1.13 |
Methyl mercaptan |
74-93-1 |
1064 |
10 |
4.50 |
Dichloromethane (methylene chloride) |
75-09-2 |
1593 |
1 |
9.10 |
Carbon disulphide |
75-15-0 |
1131 |
10 |
9.10 |
Ethylene oxide |
75-21-8 |
1040 |
10 |
4.50 |
Phosgene |
75-44-5 |
1076 |
1 |
0.22 |
Propyleneimine |
75-55-8 |
1921 |
10 |
4.50 |
Propylene oxide |
75-56-9 |
1280 |
10 |
4.50 |
Tetramethyl lead |
75-74-1 |
No number |
10 |
4.50 |
Trimethylchlorosilane (chlorotrimethysilane) |
75-77-4 |
1298 |
10 |
4.50 |
Dimethyldichlorosilane (dichlorodimethylsilane) |
75-78-5 |
1162 |
10 |
2.27 |
Methyltrichlorosilane |
75-79-6 |
1250 |
10 |
2.27 |
Chloropicrin (trichloronitromethane) |
76-06-2 |
1580 |
10 |
2.27 |
Tetraethyl lead |
78-00-2 |
1649 |
10 |
2.27 |
Isobutyronitrile |
78-82-0 |
2284 |
10 |
9.10 |
Peroxyacetic acid (peracetic acid) |
79-21-0 |
3107 |
10 |
4.50 |
Methyl chloroformate |
79-22-1 |
1238 |
10 |
2.27 |
Toluene-2,6-diisocyanate |
91-08-7 |
2078 |
10 |
4.50 |
Epichlorohydrin |
106-89-8 |
2023 |
10 |
9.10 |
Acrolein |
107-02-8 |
1092 |
10 |
2.27 |
Allyl chloride |
107-05-1 |
1100 |
10 |
9.10 |
Ethylene dichloride (1,2-dichloroethane) |
107-06-2 |
1184 |
10 |
6.80 |
Ethylene chlorohydrin (2-Chloroethanol) |
107-07-3 |
1135 |
10 |
4.50 |
Allylamine |
107-11-9 |
2334 |
10 |
4.50 |
Propionitrile |
107-12-0 |
2404 |
10 |
4.50 |
Acrylonitrile |
107-13-1 |
1093 |
10 |
9.10 |
Ethylenediamine |
107-15-3 |
1604 |
10 |
9.10 |
Allyl alcohol |
107-18-6 |
1098 |
10 |
6.80 |
Methyl chloromethyl ether (Chloromethyl methyl ether) |
107-30-2 |
1339 |
10 |
2.27 |
Vinyl acetate |
108-05-4 |
1301 |
10 |
6.80 |
Isopropyl chloroformate |
108-23-6 |
2407 |
10 |
6.80 |
Cyclohexylamine |
108-91-8 |
2357 |
10 |
6.80 |
Phenol |
108-95-2 |
1671, 2312 & 2821 |
10 |
9.10 |
n-propyl chloroformate (Propyl chloroformate) |
109-61-5 |
2740 |
10 |
6.80 |
Furan |
110-00-9 |
2389 |
10 |
2.27 |
Piperidine |
110-89-4 |
2401 |
10 |
6.80 |
trans-Crotonaldehyde |
123-73-9 |
1143 |
10 |
9.10 |
Methylacrylonitrile |
126-98-7 |
3079 |
10 |
4.50 |
Ethyleneimine |
151-56-4 |
1185 |
10 |
4.50 |
Hydrazine |
302-01-2 |
2029 |
10 |
6.80 |
Boron trifluoride dimethyl etherate |
353-42-4 |
2965 |
10 |
6.80 |
Ketene |
463-51-4 |
No number |
1 |
0.22 |
Cyanogen bromide |
506-68-3 |
1889 |
10 |
4.50 |
Cyanogen chloride |
506-77-4 |
1589 |
10 |
4.50 |
Tetranitromethane |
509-14-8 |
1510 |
10 |
4.50 |
Dichlorodimethyl ether [Bis(chloromethyl) ether] |
542-88-1 |
2249 |
1 |
0.45 |
Methyl thiocyanate |
556-64-9 |
No number |
10 |
9.10 |
Toluene-2,4-diisocyanate |
584-84-9 |
2078 |
10 |
4.50 |
Perchloromethyl mercaptan |
594-42-3 |
1670 |
10 |
4.50 |
Methyl isocyanate |
624-83-9 |
2480 |
10 |
4.50 |
Carbon monoxide |
630-08-0 |
1016 |
10 |
6.80 |
Acryloyl chloride (acrylyl chloride) |
814-68-6 |
No number |
10 |
2.27 |
Sulphur hexafluoride (Sulfur hexafluoride) |
2551-62-4 |
1080 |
10 |
9.10 |
Crotonaldehyde |
4170-30-3 |
1143 |
10 |
9.10 |
Mercury |
7439-97-6 |
2809 |
N/A |
1.00 |
Sulphur dioxide |
7446-09-5 |
1079 |
10 |
2.27 |
Sulphur trioxide |
7446-11-9 |
1829 |
10 |
4.50 |
Titanium tetrachloride |
7550-45-0 |
1838 |
10 |
1.13 |
Perchloryl fluoride (trioxychlorofluoride) |
7616-94-6 |
3083 |
10 |
6.80 |
Boron trifluoride |
7637-07-2 |
1008 |
10 |
2.27 |
Hydrochloric acid |
7647-01-0 |
1789 |
30 |
6.80 |
Hydrogen chloride, anhydrous |
7647-01-0 |
1789 |
10 |
2.27 |
Hydrofluoric acid |
7664-39-3 |
1790 |
50 |
0.45 |
Hydrogen fluoride, anhydrous |
7664-39-3 |
1052 |
1 |
0.45 |
Ammonia, anhydrous |
7664-41-7 |
2073 & 2672 |
10 |
4.50 |
Ammonia solution |
7664-41-7 |
2073 & 2672 |
20 |
9.10 |
Nitric acid |
7697-37-2 |
2031 & 2032 |
80 |
6.80 |
Thionyl chloride |
7719-09-7 |
1836 |
10 |
6.80 |
Phosphorus trichloride |
7719-12-2 |
1809 |
10 |
6.80 |
Phosphorus, white |
7723-14-0 |
2447 |
N/A |
1.00 |
Bromine |
7726-95-6 |
1744 |
10 |
4.50 |
Fluorine |
7782-41-4 |
1045 |
1 |
0.45 |
Chlorine |
7782-50-5 |
1017 |
10 |
1.13 |
Hydrogen sulphide |
7783-06-4 |
1053 |
10 |
4.50 |
Hydrogen selenide |
7783-07-5 |
2202 |
1 |
0.22 |
Sulphur tetrafluoride |
7783-60-0 |
2418 |
10 |
1.13 |
Arsenic trichloride (arsenous trichloride) |
7784-34-1 |
1560 |
10 |
6.80 |
Arsine |
7784-42-1 |
2188 |
1 |
0.45 |
Chlorosulphonic acid |
7790-94-5 |
1754 |
10 |
2.27 |
Phosphine |
7803-51-2 |
2199 |
10 |
2.27 |
Stibine |
7803-52-3 |
2676 |
10 |
2.27 |
Sulphuric acid, fuming (oleum) |
8014-95-7 |
1831 |
N/A |
4.50 |
Phosphorus oxychloride |
10025-87-3 |
1810 |
10 |
2.27 |
Hydrogen bromide (Hydrobromic acid) |
10035-10-6 |
1048 & 1788 |
10 |
1.13 |
Chlorine dioxide |
10049-04-4 |
No number |
1 |
0.45 |
Nitric oxide (nitrogen monoxide) |
10102-43-9 |
1660 |
10 |
4.50 |
Nitrogen dioxide |
10102-44-0 |
1067 |
10 |
1.13 |
Boron trichloride |
10294-34-5 |
1741 |
10 |
2.27 |
Nickel carbonyl |
13463-39-3 |
1259 |
1 |
0.45 |
Iron pentacarbonyl |
13463-40-6 |
1994 |
10 |
1.13 |
Diborane |
19287-45-7 |
1911 |
10 |
1.13 |
Osmium tetroxide |
20816-12-0 |
2471 |
1 |
0.22 |
Toluene diisocyanate |
26471-62-5 |
2078 |
10 |
4.50 |
Part 3 - Other hazardous substances
Name of the substance | CAS registry number | UN number (if applicable) | Concentration (% mass/mass) | Minimum quantity (tonnes) |
---|---|---|---|---|
Tetrachloromethane (carbon tetrachloride) |
56-23-5 |
1846 |
10 |
0.22 |
Trichloroethylene (TCE) |
79-01-6 |
1710 |
10 |
1.13 |
Naphthalene (liquid) |
91-20-3 |
2304 |
10 |
4.50 |
3,3′-Dichlorobenzidine |
91-94-1 |
No number |
10 |
1.13 |
p-Nonylphenol |
104-40-5 |
No number |
10 |
1.13 |
Tetrachloroethylene (perchloroethylene) |
127-18-4 |
1897 |
10 |
1.13 |
Nickel acetate |
373-02-4 |
No number |
10 |
0.22 |
Arsenic pentoxide |
1303-28-2 |
1559 |
10 |
0.22 |
Cadmium oxide |
1306-19-0 |
No number |
10 |
0.22 |
Cadmium sulphide |
1306-23-6 |
No number |
10 |
0.22 |
Nickel oxide |
1313-99-1 |
No number |
10 |
0.22 |
Arsenic trioxide [arsenic(III) oxide] |
1327-53-3 |
1561 |
10 |
0.22 |
Chromium trioxide |
1333-82-0 |
1463 & 1755 |
10 |
0.22 |
Nickel carbonate |
3333-67-3 |
|
10 |
0.22 |
Arsenic |
7440-38-2 |
1558 |
10 |
0.22 |
Nickel chloride |
7718-54-9 |
No number |
10 |
0.22 |
Chromic acid |
7738-94-5 |
1463 & 1755 |
10 |
0.22 |
Sodium chromate |
7775-11-3 |
No number |
10 |
0.22 |
Arsenic acid |
7778-39-4 |
1553 & 1554 |
10 |
0.22 |
Sodium arsenate, dibasic |
7778-43-0 |
1685 |
10 |
0.22 |
Sodium arsenite |
7784-46-5 |
1686 & 2027 |
10 |
0.22 |
Nickel(II) sulphate [Nickel(II) sulfate] |
7786-81-4 |
No number |
10 |
0.22 |
Potassium chromate |
7789-00-6 |
No number |
10 |
0.22 |
Sodium arsenate, dibasic, heptahydrate |
10048-95-0 |
1685 |
10 |
0.22 |
Nickel(II) sulphate, hexahydrate [Nickel(II) sulfate, hexahydrate] |
10101-97 |
No number |
10 |
0.22 |
Cadmium chloride |
10108-64-2 |
No number |
10 |
0.22 |
Cadmium sulphate |
10124-36-4 |
No number |
10 |
0.22 |
Sodium dichromate |
10588-01-9 |
No number |
10 |
0.22 |
Nickel nitrate [nickel(II) nitrate] |
13138-45-9 |
2725 |
10 |
0.22 |
Nickel(II) nitrate, hexahydrate |
13478-00-7 |
2725 |
10 |
0.22 |
Nickel ammonium sulphate (Nickel ammonium sulfate) |
15699-18-0 |
No number |
10 |
0.22 |
Nonylphenol (mixed isomer) |
25154-52-3 |
No number |
10 |
1.13 |
Tributyl tetradecyl phosphonium chloride (TTPC) |
81741-28-8 |
No number |
10 |
0.22 |
4-tert-Nonylphenol |
84852-15-3 |
No number |
10 |
1.13 |
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