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Chemical Emergency Preparedness and Prevention Office (CEPPO)

CAA 112(r) List of Regulated Substances
Alphabetical Order

Use the following list of 112(r) regulated substances, including their synonyms, and threshold quantities (in pounds) to help you assess if  your process is subject to the RMP rule or the general duty clause.

NOTE: RMP*Submit may list the chemical by it's alias. To help you determine the alias(es) for a chemical, there is also a CAA 112(r) List of Regulated Substances - by CAS Number.

(as of October 30, 1998) 

  
Regulated Substance         CAS #       TQ  
1,1-Dichloroethylene               75-35-4      10,000 
1,1-Dimethyl hydrazine             57-14-7      15,000 
1,2-Ethanediamine                 107-15-3      20,000 
1,2-Propadiene                    463-49-0      10,000 
1,3-Butadiene                     106-99-0      10,000 
1,3-Butadiene, 2-methyl-           78-79-5      10,000 
1,3-Pentadiene                    504-60-9      10,000 
1-Buten-3-yne                     689-97-4      10,000 
1-Butene                          106-98-9      10,000 
1-Butyne                          107-00-6      10,000 
1-Chloropropylene                 590-21-6      10,000 
1-Pentene                         109-67-1      10,000 
1-Propene                         115-07-1      10,000 
1-Propene, 1-chloro-              590-21-6      10,000 
1-Propene, 2-chloro-              557-98-2      10,000 
1-Propene, 2-methyl-              115-11-7      10,000 
1-Propyne                          74-99-7      10,000 
2,2-Dimethylpropane               463-82-1      10,000 
2-Butenal                        4170-30-3      20,000 
2-Butenal, (e)-                   123-73-9      20,000 
2-Butene                          107-01-7      10,000 
2-Butene, (E)                     624-64-6      10,000 
2-Butene-cis                      590-18-1      10,000 
2-Butene-trans                    624-64-6      10,000 
2-Chloropropylene                 557-98-2      10,000 
2-Methyl-1-butene                 563-46-2      10,000 
2-Methylpropene                   115-11-7      10,000 
2-Pentene, (E)-                   646-04-8      10,000 
2-Pentene, (Z)-                   627-20-3      10,000 
2-Propanamine                      75-31-0      10,000 
2-Propen-1-amine                  107-11-9      10,000 
2-Propen-1-ol                     107-18-6      15,000 
2-Propenal                        107-02-8       5,000 
2-Propenenitrile                  107-13-1      20,000 
2-Propenenitrile, 2-methyl-       126-98-7      10,000 
2-Propenoyl chloride              814-68-6       5,000 
3-Methyl-1-butene                 563-45-1      10,000 
Acetaldehyde                       75-07-0      10,000 
Acetic acid ethenyl ester         108-05-4      15,000 
Acetylene                          74-86-2      10,000 
Acrolein                          107-02-8       5,000 
Acrylonitrile                     107-13-1      20,000 
Acrylyl chloride                  814-68-6       5,000 
Allyl alcohol                     107-18-6      15,000 
Allylamine                        107-11-9      10,000 
Ammonia (anhydrous)              7664-41-7      10,000 
Ammonia (conc 20% or greater)    7664-41-7      20,000 
Arsenous trichloride             7784-34-1      15,000 
Arsine                           7784-42-1       1,000 
Aziridine                         151-56-4      10,000 
Aziridine, 2-methyl                75-55-8      10,000 
Benzene, 1,3-diisocyanato 
     -2-methyl-                    91-08-7      10,000 
Benzene, 1,3-diisocyanatomethyl- 26471-62-5     10,000 
Benzene, 2,4-diisocyanato 
     -1-methyl-                   584-84-9      10,000 
Bis(chloromethyl) ether           542-88-1       1,000 
Borane, trichloro-              10294-34-5       5,000 
Borane, trifluoro-               7637-07-2       5,000 
Boron trichloride               10294-34-5       5,000 
Boron trifluoride                7637-07-2       5,000 
Boron trifluoride compound 
     with methyl ether (1:1)      353-42-4      15,000 
Boron, trifluoro[oxybis[methane]] 
     -, (T-4)-                    353-42-4      15,000 
Bromine                          7726-95-6      10,000 
Bromotrifluoroethylene            598-73-2      10,000 
Butane                            106-97-8      10,000 
Butane, 2-methyl-                  78-78-4      10,000 
Butene                          25167-67-3      10,000 
Carbon disulfide                   75-15-0      20,000 
Carbon oxide sulfide (COS)        463-58-1      10,000 
Carbonic dichloride                75-44-5         500 
Carbonochloridic acid,  
     1-methylethyl ester          108-23-6      15,000 
Carbonochloridic acid,  
     methylester                   79-22-1       5,000 
Carbonochloridic acid,  
     propylester                  109-61-5      15,000 
Carbonyl sulfide                  463-58-1      10,000 
Chlorine                         7782-50-5       2,500 
Chlorine dioxide                10049-04-4       1,000 
Chlorine monoxide                7791-21-1      10,000 
Chlorine oxide                   7791-21-1      10,000 
Chlorine oxide (ClO2)           10049-04-4       1,000 
Chloroethane                       75-00-3      10,000 
Chloroform                         67-66-3      20,000 
Chloromethane                      74-87-3      10,000 
Chloromethyl ether                542-88-1       1,000 
Chloromethyl methyl ether         107-30-2       5,000 
Crotonaldehyde                   4170-30-3      20,000 
Crotonaldehyde, (E)-              123-73-9      20,000 
Cyanogen                          460-19-5      10,000 
Cyanogen chloride                 506-77-4      10,000 
Cyanogen chloride ((CN)Cl)        506-77-4      10,000 
Cyclohexanamine                   108-91-8      15,000 
Cyclohexylamine                   108-91-8      15,000 
Cyclopropane                       75-19-4      10,000 
Diborane                        19287-45-7       2,500 
Diborane(6)                     19287-45-7       2,500 
Dichloromethyl ether              542-88-1       1,000 
Dichlorosilane                   4109-96-0      10,000 
Difluoroethane                     75-37-6      10,000 
Dimethylamine                     124-40-3      10,000 
Dimethyldichlorosilane             75-78-5       5,000 
Dimethylhydrazine                  57-14-7      15,000 
Epichlorohydrin                   106-89-8      20,000 
Ethanamine                         75-04-7      10,000 
Ethane                             74-84-0      10,000 
Ethane, 1,1'-oxybis-               60-29-7      10,000 
Ethane, 1,1-difluoro-              75-37-6      10,000 
Ethane, chloro-                    75-00-3      10,000 
Ethanedinitrile                   460-19-5      10,000 
Ethaneperoxoic acid                79-21-0      10,000 
Ethanethiol                        75-08-1      10,000 
Ethene                             74-85-1      10,000 
Ethene, 1,1-dichloro-              75-35-4      10,000 
Ethene, 1,1-difluoro-              75-38-7      10,000 
Ethene, bromotrifluoro-           598-73-2      10,000 
Ethene, chloro-                    75-01-4      10,000 
Ethene, chlorotrifluoro-           79-38-9      10,000 
Ethene, ethoxy-                   109-92-2      10,000 
Ethene, fluoro-                    75-02-5      10,000 
Ethene, methoxy-                  107-25-5      10,000 
Ethene, tetrafluoro-              116-14-3      10,000 
Ethyl acetylene                   107-00-6      10,000 
Ethyl chloride                     75-00-3      10,000 
Ethyl cyanide                     107-12-0      10,000 
Ethyl ether                        60-29-7      10,000 
Ethyl mercaptan                    75-08-1      10,000 
Ethyl nitrite                     109-95-5      10,000 
Ethylene                           74-85-1      10,000 
Ethylene oxide                     75-21-8      10,000 
Ethylenediamine                   107-15-3      20,000 
Ethyleneimine                     151-56-4      10,000 
Ethyne                             74-86-2      10,000 
Fluorine                         7782-41-4       1,000 
Formaldehyde                       50-00-0      15,000 
Formaldehyde (solution)            50-00-0      15,000 
Formic acid, methyl ester         107-31-3      10,000 
Furan                             110-00-9       5,000 
Hydrazine                         302-01-2      15,000 
Hydrazine, 1,1-dimethyl-           57-14-7      15,000 
Hydrazine, methyl-                 60-34-4      15,000 
Hydrochloric acid 
     (conc 37% or greater)       7647-01-0      15,000 
Hydrocyanic acid                   74-90-8       2,500 
Hydrofluoric acid  
     (conc. 50% or greater)      7664-39-3       1,000 
Hydrogen                         1333-74-0      10,000 
Hydrogen chloride (anhydrous)    7647-01-0       5,000 
Hydrogen chloride (gas only)     7647-01-0       5,000 
Hydrogen cyanide                   74-90-8       2,500 
Hydrogen fluoride (anhydrous)    7664-39-3       1,000 
Hydrogen selenide                7783-07-5         500 
Hydrogen sulfide                 7783-06-4      10,000 
Iron carbonyl (Fe(CO)5),  
     (TB-5-11)-                 13463-40-6       2,500 
Iron, pentacarbonyl-            13463-40-6       2,500 
Isobutane                          75-28-5      10,000 
Isobutyronitrile                   78-82-0      20,000 
Isopentane                         78-78-4      10,000 
Isoprene                           78-79-5      10,000 
Isopropyl chloride                 75-29-6      10,000 
Isopropyl chloroformate           108-23-6      15,000 
Isopropylamine                     75-31-0      10,000 
Methacrylonitrile                 126-98-7      10,000 
Methanamine                        74-89-5      10,000 
Methanamine, N,N-dimethyl-         75-50-3      10,000 
Methanamine, N-methyl-            124-40-3      10,000 
Methane                            74-82-8      10,000 
Methane, chloro-                   74-87-3      10,000 
Methane, chloromethoxy-           107-30-2       5,000 
Methane, isocyanato-              624-83-9      10,000 
Methane, oxybis-                  115-10-6      10,000 
Methane, oxybis[chloro-           542-88-1       1,000 
Methane, tetranitro-              509-14-8      10,000 
Methane, trichloro-                67-66-3      20,000 
Methanesulfenyl chloride, 
     trichloro-                   594-42-3      10,000 
Methanethiol                       74-93-1      10,000 
Methyl chloride                    74-87-3      10,000 
Methyl chlorocarbonate             79-22-1       5,000 
Methyl chloroformate               79-22-1       5,000 
Methyl ether                      115-10-6      10,000 
Methyl formate                    107-31-3      10,000 
Methyl hydrazine                   60-34-4      15,000 
Methyl isocyanate                 624-83-9      10,000 
Methyl mercaptan                   74-93-1      10,000 
Methyl thiocyanate                556-64-9      20,000 
Methyltrichlorosilane              75-79-6       5,000 
Monoethylamine                     75-04-7      10,000 
Monomethylamine                    74-89-5      10,000 
Nickel carbonyl                 13463-39-3       1,000 
Nitric acid (>= conc 80%)        7697-37-2      15,000 
Nitric oxide                    10102-43-9      10,000 
Nitrogen oxide (NO)             10102-43-9      10,000 
Nitrous acid, ethyl ester         109-95-5      10,000 
Oleum (fuming sulfuric acid)     8014-95-7      10,000 
Oxirane                            75-21-8      10,000 
Oxirane, (chloromethyl)-          106-89-8      20,000 
Oxirane, methyl-                   75-56-9      10,000 
Pentane                           109-66-0      10,000 
Peracetic acid                     79-21-0      10,000 
Perchloromethyl mercaptan         594-42-3      10,000 
Phosgene                           75-44-5         500 
Phosphine                        7803-51-2       5,000 
Phosphorous trichloride          7719-12-2      15,000 
Phosphorus oxychloride          10025-87-3       5,000 
Phosphorus trichloride           7719-12-2      15,000 
Phosphoryl chloride             10025-87-3       5,000 
Piperidine                        110-89-4      15,000 
Plumbane, tetramethyl-             75-74-1      10,000 
Propadiene                        463-49-0      10,000 
Propane                            74-98-6      10,000 
Propane, 2,2-dimethyl-            463-82-1      10,000 
Propane, 2-chloro-                 75-29-6      10,000 
Propane, 2-methyl                  75-28-5      10,000 
Propanenitrile                    107-12-0      10,000 
Propanenitrile, 2-methyl-          78-82-0      20,000 
Propene                           115-07-1      10,000 
Propionitrile                     107-12-0      10,000 
Propyl chloroformate              109-61-5      15,000 
Propylene                         115-07-1      10,000 
Propylene oxide                    75-56-9      10,000 
Propyleneimine                     75-55-8      10,000 
Propyne                            74-99-7      10,000 
Silane                           7803-62-5      10,000 
Silane, chlorotrimethyl-           75-77-4      10,000 
Silane, dichloro-                4109-96-0      10,000 
Silane, dichlorodimethyl-          75-78-5       5,000 
Silane, tetramethyl-               75-76-3      10,000 
Silane, trichloro-              10025-78-2      10,000 
Silane, trichloromethyl-           75-79-6       5,000 
Sulfur dioxide (anhydrous)       7446-09-5       5,000 
Sulfur fluoride (SF4), (T-4)-    7783-60-0       2,500 
Sulfur tetrafluoride             7783-60-0       2,500 
Sulfur trioxide                  7446-11-9      10,000 
Sulfuric acid (fuming)           8014-95-7      10,000 
Sulfuric acid, mixture with 
     sulfur trioxide             8014-95-7      10,000 
Tetrafluoroethylene               116-14-3      10,000 
Tetramethyllead                    75-74-1      10,000 
Tetramethylsilane                  75-76-3      10,000 
Tetranitromethane                 509-14-8      10,000 
Thiocyanic acid, methyl ester     556-64-9      20,000 
Thiomethanol                       74-93-1      10,000 
Titanium chloride (TiCl4)  
     (T-4)-                      7550-45-0       2,500 
Titanium tetrachloride           7550-45-0       2,500 
Toluene diisocyanate  
     (unspecified isomer)       26471-62-5      10,000 
Toluene-2,4-diisocyanate          584-84-9      10,000 
Toluene-2,6-diisocyanate           91-08-7      10,000 
Toluenediisocyanate  
     (mixed isomers)            26471-62-5      10,000 
Trichloromethanesulfenyl  
     chloride                     594-42-3      10,000 
Trichlorosilane                 10025-78-2      10,000 
Trifluorochloroethylene            79-38-9      10,000 
Trimethylamine                     75-50-3      10,000 
Trimethylchlorosilane              75-77-4      10,000 
Vinyl acetate                     108-05-4      15,000 
Vinyl acetate monomer             108-05-4      15,000 
Vinyl acetylene                   689-97-4      10,000 
Vinyl chloride                     75-01-4      10,000 
Vinyl ethyl ether                 109-92-2      10,000 
Vinyl fluoride                     75-02-5      10,000 
Vinyl methyl ether                107-25-5      10,000 
Vinylidene chloride                75-35-4      10,000 
Vinylidene fluoride                75-38-7      10,000 
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Maintained by the Chemical Emergency Preparedness and Prevention Office (CEPPO), Office of Solid Waste and Emergency Response (OSWER), U.S. Environmental Protection Agency (EPA)
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Last Updated: December 21, 1998