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 MixtureFlammable87039,550,554,048
PropaneFlammable64211,995,738,779
Ammonia (anhydrous)Toxic7,04110,490,688,224
ButaneFlammable4098,738,616,637
EthaneFlammable622,777,226,840
Isobutane [Propane, 2-methyl]Flammable2042,285,294,836
Propylene [1-Propene]Flammable1471,514,567,396
Ethylene [Ethene]Flammable891,075,976,239
ChlorineToxic2,429846,866,511
2-Methylpropene [1-Propene, 2-methyl-]Flammable43799,951,365
Vinyl chloride [Ethene, chloro-]Flammable33674,349,703
PentaneFlammable205542,261,136
Vinyl acetate monomer [Acetic acid ethenyl ester]Toxic104408,173,659
1,3-ButadieneFlammable71381,324,337
Propylene oxide [Oxirane, methyl-]Toxic89350,249,816
Acrylonitrile [2-Propenenitrile]Toxic84341,825,959
1-ButeneFlammable56317,058,850
Formaldehyde (solution)Toxic174211,666,300
Ammonia (conc 20% or greater)Toxic447210,486,496
Isopentane [Butane, 2-methyl-]Flammable133188,354,442
Ethylene oxide [Oxirane]Toxic85184,689,663
Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide]Toxic47184,230,642
Isoprene [1,3-Butadiene, 2-methyl-]Flammable28137,360,485
MethaneFlammable87128,772,370
Epichlorohydrin [Oxirane, (chloromethyl)-]Toxic48120,262,765
Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-]Toxic63118,856,913
Chloroform [Methane, trichloro-]Toxic3997,452,215
Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) [Hydrofluoric acid]Toxic14090,738,632
Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-]Toxic2578,962,031
Methyl chloride [Methane, chloro-]Toxic4559,832,327
1,3-PentadieneFlammable1355,342,636
ButeneFlammable2252,557,666
Ethylenediamine [1,2-Ethanediamine]Toxic5251,014,577
Sulfur dioxide (anhydrous)Toxic45047,691,747
Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-]Toxic3444,503,782
Vinylidene chloride [Ethene, 1,1-dichloro-]Flammable1142,430,177
Carbon disulfideToxic3741,518,548
Isopropylamine [2-Propanamine]Flammable2839,529,569
Hydrochloric acid (conc 37% or greater)Toxic4839,236,659
1-PenteneFlammable1339,183,436
Nitric acid (conc 80% or greater)Toxic1638,116,138
Dimethylamine [Methanamine, N-methyl-]Flammable4335,159,887
AcetaldehydeFlammable2833,906,042
Trichlorosilane [Silane, trichloro-]Flammable2033,732,421
Methylamine [Methanamine]Flammable2532,208,488
Methyltrichlorosilane [Silane, trichloromethyl-]Toxic1526,689,970
Hydrogen chloride (anhydrous) [Hydrochloric acid]Toxic8026,196,545
Phosphorus trichloride [Phosphorous trichloride]Toxic2826,088,345
Methyl mercaptan [Methanethiol]Toxic1225,390,252
Sulfur trioxideToxic2222,850,120
Allyl alcohol [2-Propen-1-ol]Toxic1721,496,659
Ethyl ether [Ethane, 1,1'-oxybis-]Flammable3521,100,323
Ethyl chloride [Ethane, chloro-]Flammable1819,886,500
Trimethylchlorosilane [Silane, chlorotrimethyl-]Toxic1618,220,995
HydrazineToxic1417,712,926
Dimethyldichlorosilane [Silane, dichlorodimethyl-]Toxic1017,472,769
Cyclohexylamine [Cyclohexanamine]Toxic3216,593,706
Trimethylamine [Methanamine, N,N-dimethyl-]Flammable2515,898,284
Propionitrile [Propanenitrile]Toxic915,338,933
PiperidineToxic1014,619,710
BromineToxic2414,546,508
Difluoroethane [Ethane, 1,1-difluoro-]Flammable4814,465,102
Isobutyronitrile [Propanenitrile, 2-methyl-]Toxic314,188,342
Methyl ether [Methane, oxybis-]Flammable4113,823,212
Phosphorus oxychloride [Phosphoryl chloride]Toxic2213,287,397
Peracetic acid [Ethaneperoxoic acid]Toxic511,784,298
Methyl hydrazine [Hydrazine, methyl-]Toxic511,720,924
Ethylamine [Ethanamine]Flammable1211,393,350
Propyleneimine [Aziridine, 2-methyl-]Toxic311,383,408
Ethyleneimine [Aziridine]Toxic211,357,144
Methacrylonitrile [2-Propenenitrile, 2-methyl-]Toxic211,275,793
Ethyl mercaptan [Ethanethiol]Flammable5910,725,391
HydrogenFlammable10210,534,665
Hydrocyanic acidToxic1510,300,051
2-Methyl-1-buteneFlammable1310,219,422
Crotonaldehyde [2-Butenal]Toxic29,039,608
2-Butene-trans [2-Butene, (E)]Flammable147,830,080
2-Butene-cisFlammable157,656,151
Hydrogen sulfideToxic506,283,812
Vinyl methyl ether [Ethene, methoxy-]Flammable35,469,000
Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-]Toxic134,661,164
2-ButeneFlammable123,975,622
FuranToxic33,780,367
Acrolein [2-Propenal]Toxic143,236,895
Methyl formate [Formic acid, methyl ester]Flammable82,967,702
Vinylidene fluoride [Ethene, 1,1-difluoro-]Flammable72,613,000
Acetylene [Ethyne]Flammable362,448,624
2-Pentene, (E)-Flammable62,323,672
Chlorine dioxide [Chlorine oxide (ClO2)]Toxic601,934,223
2-Pentene, (Z)-Flammable51,646,553
3-Methyl-1-buteneFlammable81,607,094
Trifluorochloroethylene [Ethene, chlorotrifluoro-]Flammable61,525,000
Phosgene [Carbonic dichloride]Toxic151,355,643
2-Chloropropylene [1-Propene, 2-chloro-]Flammable31,283,292
Boron trifluoride [Borane, trifluoro-]Toxic161,172,200
Isopropyl chloride [Propane, 2-chloro-]Flammable31,156,000
CBI Flammable SubstanceFlammable7960,977
SilaneFlammable5936,812
Vinyl fluoride [Ethene, fluoro-]Flammable2880,000
Isopropyl chloroformate [Carbonochloridic acid, 1-methylethy ester]Toxic7811,710
2,2-Dimethylpropane [Propane, 2,2-dimethyl-]Flammable5649,000
Tetrafluoroethylene [Ethene, tetrafluoro-]Flammable4606,000
1-Chloropropylene [1-Propene, 1-chloro-]Flammable3580,737
Dichlorosilane [Silane, dichloro-]Flammable4556,000
Propyl chloroformate [Carbonochloridic acid, propylester]Toxic6510,550
Chloromethyl methyl ether [Methane, chloromethoxy-]Toxic2490,112
Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-]Toxic1450,000
Tetramethylsilane [Silane, tetramethyl-]Flammable5372,792
Methyl chloroformate [Carbonochloridic acid, methylester]Toxic3350,398
Vinyl acetylene [1-Buten-3-yne]Flammable4306,074
Allylamine [2-Propen-1-amine]Toxic2267,366
1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-]Toxic3219,313
Propyne [1-Propyne]Flammable4156,000
Ethyl acetylene [1-Butyne]Flammable4124,718
Boron trichloride [Borane, trichloro-]Toxic3114,500
Propadiene [1,2-Propadiene]Flammable2102,000
Crotonaldehyde, (E)- [2-Butenal, (E)-]Toxic199,608
ArsineToxic970,603
Tetranitromethane [Methane, tetranitro-]Toxic168,263
Vinyl ethyl ether [Ethene, ethoxy-]Flammable156,500
FluorineToxic550,027
CBI AcidsToxic149,000
Acrylyl chloride [2-Propenoyl chloride]Toxic148,000
Hydrogen selenideToxic446,111
Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-]Toxic138,500
PhosphineToxic231,276
Nitrogen TetroxideToxic130,000
Chloromethyl ether [Methane, oxybis[chloro-]Toxic114,477
Total----86,099,095,559


This search was done on October 22, 2017. It was compiled from government data last released on January 31, 2017. This search result was produced by RTK NET. The data were obtained from the U.S. EPA's Risk Management System database (RMP).