RMP on-site quantities by chemical

(This table shows amounts of each chemical within processes that have worst-case accidents than could potentially reach off-site. Facilities that are no longer registered with RMP are not included.)


Table sorted by pounds in processes: re-sort using column headers

Chemical NameChemical Type# of facilitiesPounds in processes
Flammable MixtureFlammable87934,947,641,511
PropaneFlammable63411,151,054,831
Ammonia (anhydrous)Toxic6,98410,335,041,774
ButaneFlammable4268,353,062,828
EthaneFlammable622,778,708,315
Isobutane [Propane, 2-methyl]Flammable2092,218,260,475
Propylene [1-Propene]Flammable1461,516,608,721
Ethylene [Ethene]Flammable891,079,440,426
ChlorineToxic2,345844,296,914
2-Methylpropene [1-Propene, 2-methyl-]Flammable44800,636,495
Vinyl chloride [Ethene, chloro-]Flammable32782,736,462
PentaneFlammable205581,832,388
Vinyl acetate monomer [Acetic acid ethenyl ester]Toxic107471,559,277
1,3-ButadieneFlammable68367,235,369
Acrylonitrile [2-Propenenitrile]Toxic82342,858,977
Propylene oxide [Oxirane, methyl-]Toxic90340,036,961
1-ButeneFlammable57324,841,382
Ammonia (conc 20% or greater)Toxic428209,118,919
Ethylene oxide [Oxirane]Toxic86190,126,603
Isopentane [Butane, 2-methyl-]Flammable134188,785,449
Formaldehyde (solution)Toxic175174,619,895
Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide]Toxic44159,961,381
Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-]Toxic64137,583,102
Isoprene [1,3-Butadiene, 2-methyl-]Flammable30137,432,105
MethaneFlammable90135,657,239
Epichlorohydrin [Oxirane, (chloromethyl)-]Toxic49134,036,813
Chloroform [Methane, trichloro-]Toxic4098,060,064
Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) [Hydrofluoric acid]Toxic14186,769,662
1,3-PentadieneFlammable1362,279,062
Methyl chloride [Methane, chloro-]Toxic4461,188,634
Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-]Toxic2957,571,344
ButeneFlammable2252,535,666
Ethylenediamine [1,2-Ethanediamine]Toxic5248,970,456
Vinylidene chloride [Ethene, 1,1-dichloro-]Flammable1246,270,177
Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-]Toxic3444,400,182
Isopropylamine [2-Propanamine]Flammable2940,122,076
Sulfur dioxide (anhydrous)Toxic45039,793,235
Hydrochloric acid (conc 37% or greater)Toxic4739,480,830
1-PenteneFlammable1239,285,814
Carbon disulfideToxic3639,193,182
Nitric acid (conc 80% or greater)Toxic1638,673,838
Dimethylamine [Methanamine, N-methyl-]Flammable4338,021,477
AcetaldehydeFlammable2734,276,029
Trichlorosilane [Silane, trichloro-]Flammable2034,195,683
Methylamine [Methanamine]Flammable2633,133,405
Methyltrichlorosilane [Silane, trichloromethyl-]Toxic1427,489,078
Hydrogen chloride (anhydrous) [Hydrochloric acid]Toxic8026,678,491
Allyl alcohol [2-Propen-1-ol]Toxic1926,176,825
Phosphorus trichloride [Phosphorous trichloride]Toxic2425,316,895
Methyl mercaptan [Methanethiol]Toxic1124,836,494
Sulfur trioxideToxic2223,213,860
Ethyl ether [Ethane, 1,1'-oxybis-]Flammable3521,394,530
Ethyl chloride [Ethane, chloro-]Flammable1820,066,500
Trimethylchlorosilane [Silane, chlorotrimethyl-]Toxic1618,510,907
Dimethyldichlorosilane [Silane, dichlorodimethyl-]Toxic1017,842,938
Cyclohexylamine [Cyclohexanamine]Toxic3416,842,346
Difluoroethane [Ethane, 1,1-difluoro-]Flammable4916,035,793
Trimethylamine [Methanamine, N,N-dimethyl-]Flammable2615,984,714
HydrazineToxic1315,734,076
Propionitrile [Propanenitrile]Toxic914,570,033
PiperidineToxic914,565,618
Isobutyronitrile [Propanenitrile, 2-methyl-]Toxic314,188,342
Methyl ether [Methane, oxybis-]Flammable4214,052,806
Phosphorus oxychloride [Phosphoryl chloride]Toxic2213,675,397
BromineToxic2213,647,305
Peracetic acid [Ethaneperoxoic acid]Toxic911,978,156
HydrogenFlammable10111,932,645
Methyl hydrazine [Hydrazine, methyl-]Toxic511,628,324
Propyleneimine [Aziridine, 2-methyl-]Toxic311,383,408
Ethyleneimine [Aziridine]Toxic211,357,144
Methacrylonitrile [2-Propenenitrile, 2-methyl-]Toxic211,275,793
Ethylamine [Ethanamine]Flammable1111,228,350
Ethyl mercaptan [Ethanethiol]Flammable5310,930,104
Hydrocyanic acidToxic159,163,033
Crotonaldehyde [2-Butenal]Toxic39,109,608
2-Butene-trans [2-Butene, (E)]Flammable148,030,080
2-Methyl-1-buteneFlammable128,019,422
2-Butene-cisFlammable157,756,151
Hydrogen sulfideToxic466,529,589
Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-]Toxic155,691,425
Vinyl methyl ether [Ethene, methoxy-]Flammable35,469,000
2-ButeneFlammable124,075,622
FuranToxic33,780,367
Acrolein [2-Propenal]Toxic153,284,055
Methyl formate [Formic acid, methyl ester]Flammable82,963,617
Acetylene [Ethyne]Flammable382,416,864
Vinylidene fluoride [Ethene, 1,1-difluoro-]Flammable72,392,000
2-Pentene, (E)-Flammable62,323,672
Trifluorochloroethylene [Ethene, chlorotrifluoro-]Flammable62,275,000
Chlorine dioxide [Chlorine oxide (ClO2)]Toxic591,918,287
2-Pentene, (Z)-Flammable51,646,553
3-Methyl-1-buteneFlammable81,607,094
SilaneFlammable61,386,812
Phosgene [Carbonic dichloride]Toxic151,367,643
Isopropyl chloride [Propane, 2-chloro-]Flammable41,320,843
2-Chloropropylene [1-Propene, 2-chloro-]Flammable31,284,203
Boron trifluoride [Borane, trifluoro-]Toxic161,172,200
CBI Flammable SubstanceFlammable71,013,718
Vinyl fluoride [Ethene, fluoro-]Flammable2878,000
Dichlorosilane [Silane, dichloro-]Flammable7854,000
Isopropyl chloroformate [Carbonochloridic acid, 1-methylethy ester]Toxic7771,710
2,2-Dimethylpropane [Propane, 2,2-dimethyl-]Flammable5649,000
1-Chloropropylene [1-Propene, 1-chloro-]Flammable3582,979
Tetrafluoroethylene [Ethene, tetrafluoro-]Flammable3548,000
Chloromethyl methyl ether [Methane, chloromethoxy-]Toxic2490,112
Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-]Toxic1450,000
Tetramethylsilane [Silane, tetramethyl-]Flammable6398,532
Methyl chloroformate [Carbonochloridic acid, methylester]Toxic4375,398
Vinyl acetylene [1-Buten-3-yne]Flammable4306,074
Propyl chloroformate [Carbonochloridic acid, propylester]Toxic4272,550
Allylamine [2-Propen-1-amine]Toxic2267,366
1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-]Toxic3194,313
Ethyl acetylene [1-Butyne]Flammable4168,718
Propyne [1-Propyne]Flammable5167,000
Crotonaldehyde, (E)- [2-Butenal, (E)-]Toxic2145,608
Boron trichloride [Borane, trichloro-]Toxic3114,500
Propadiene [1,2-Propadiene]Flammable3113,000
ArsineToxic1082,570
Tetranitromethane [Methane, tetranitro-]Toxic168,263
Hydrogen selenideToxic558,065
Vinyl ethyl ether [Ethene, ethoxy-]Flammable156,500
CBI AcidsToxic149,000
FluorineToxic448,027
Acrylyl chloride [2-Propenoyl chloride]Toxic148,000
Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-]Toxic138,500
PhosphineToxic237,000
Nitrogen TetroxideToxic130,000
Chloromethyl ether [Methane, oxybis[chloro-]Toxic114,477
Total----80,214,206,420


This search was done on December 10, 2018. It was compiled from government data last released on April 30, 2018. This search result was produced by RTK NET. The data were obtained from the U.S. EPA's Risk Management System database (RMP).