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List: Hazardous Constituents (Resource Conservation and Recovery Act)
Description
The Hazardous Constituents list (Appendix VIII) of the Resource Conservation and Recovery Act (RCRA) is used to identify the universe of chemicals of concern under RCRA, the primary environmental law governing the proper disposal of hazardous wastes.

The Hazardous Constituents list includes substances that meet the following criteria:
1. Inclusion in the Clean Water Act list of priority pollutants
2. Chemicals considered hazardous to transport by the Department of Transportation
3. Chemicals identified as carcinogens by the U.S. EPA's Carcinogen Assessment Group
4. Chemicals with high acute toxicity, as identified by the National Institute for Occupational Safety and Health's Registry of Toxic Effects of Chemical Substances list.

Reference
Electronic Code of Federal Regulations. 40 CFR - CHAPTER I - PART 261. Appendix VIII to Part 261 -- Hazardous Constituents.
http://www.access.gpo.gov/nara/cfr/cfrhtml_00/Title_40/40cfr261_00.html
 
List of Chemicals
Note: For your convenience, these data are also available as a CSV file. Click here to download.

Chemical Name CAS Registry Number (or EDF Substance ID)
A221330558-43-1
ACETIC ACID, CHLORIDE75-36-5
ACETIC ACID, THALLIUM(1+) SALT563-68-8
ACETO TMTM97-74-5
ACETONITRILE75-05-8
ACETOPHENONE98-86-2
1-ACETYL-2-THIOUREA591-08-2
2-ACETYLAMINOFLUORENE53-96-3
ACROLEIN107-02-8
ACRYLAMIDE79-06-1
ACRYLONITRILE107-13-1
AFLATOXINS1402-68-2
ALDICARB116-06-3
ALDRIN309-00-2
ALLYL ALCOHOL107-18-6
ALLYL CHLORIDE107-05-1
ALPHA-NAPHTHYLAMINE134-32-7
ALUMINUM PHOSPHIDE20859-73-8
4-AMINOBIPHENYL92-67-1
5-(AMINOMETHYL)-3-ISOXAZOLOL2763-96-4
2-AMINONAPHTHALENE91-59-8
1-AMINOPROPANE107-10-8
AMITROLE61-82-5
AMMONIUM METAVANADATE7803-55-6
ANILINE62-53-3
ANTIMONY7440-36-0
ANTIMONY COMPOUNDSADQ500
ANTU86-88-4
ARAMITE140-57-8
ARSENIC7440-38-2
ARSENIC (ORGANIC OR INORGANIC COMPOUNDS)ARF750
ARSENIC ACID7778-39-4
ARSENIC OXIDE (3)1327-53-3
ARSENIC PENTOXIDE1303-28-2
ARSINE, DIETHYL-692-42-2
AURAMINE492-80-8
AZASERINE115-02-6
BARBAN101-27-9
BARIUM7440-39-3
BARIUM COMPOUNDSBAK500
BARIUM CYANIDE542-62-1
BENDIOCARB22781-23-3
BENDIOCARB PHENOL22961-82-6
BENOMYL17804-35-2
BENZ(A)ANTHRACENE56-55-3
BENZAL CHLORIDE98-87-3
BENZENE71-43-2
BENZENEARSONIC ACID98-05-5
BENZENETHIOL108-98-5
BENZIDINE92-87-5
BENZO(A)PYRENE50-32-8
BENZO(B)FLUORANTHENE205-99-2
BENZO(K)FLUORANTHENE207-08-9
BENZOIC TRICHLORIDE98-07-7
BENZO[J]FLUORANTHENE205-82-3
BENZYL BUTYL PHTHALATE85-68-7
BENZYL CHLORIDE100-44-7
BENZ[C]ACRIDINE225-51-4
BERYLLIUM7440-41-7
BERYLLIUM COMPOUNDSBFQ500
1,1'-BI(ETHYLENE OXIDE)1464-53-5
(1,1'-BIPHENYL)-4,4'-DIAMINE, 3,3'-DIMETHYL-119-93-7
BIS (PENTAMETHYLENE)-THIURAM TETRASULFIDE120-54-7
BIS(2-CHLORO-1-METHYLETHYL) ETHER108-60-1
BIS(2-CHLOROETHOXY)METHANE111-91-1
BIS(2-CHLOROETHYL) ETHER111-44-4
BIS(2-ETHYLHEXYL)PHTHALATE117-81-7
BIS(CHLOROMETHYL) ETHER542-88-1
BROMOACETONE598-31-2
4-BROMOPHENYL PHENYL ETHER101-55-3
BRUCINE357-57-3
BUTYLATE2008-41-5
CACODYLIC ACID75-60-5
CADMIUM7440-43-9
CADMIUM COMPOUNDSCAE750
CALCIUM CHROMATE13765-19-0
CALCIUM CYANIDE592-01-8
CAMPHECHLOR8001-35-2
CARBAMIC ACID, DIETHYLDITHIO-, SODIUM SALT148-18-5
CARBAMIC ACID, METHYL-, O-(((2,4-DIMETHYL-1, 3-DITHIOLAN-2-Y-METHYLENE)AMINO)-26419-73-8
CARBARYL63-25-2
CARBENDAZIM10605-21-7
CARBOFURAN1563-66-2
CARBON DISULFIDE75-15-0
CARBON TETRACHLORIDE56-23-5
CARBONYL FLUOIRDE353-50-4
CHINORTA311-45-5
2-CHLOR-1,3-BUTADIENE126-99-8
4-CHLOR-M-CRESOL59-50-7
CHLORAMBUCIL305-03-3
CHLORDANE57-74-9
CHLORDECONE (KEPONE)143-50-0
CHLORINATED BENZENES68411-45-0
CHLORINATED ETHANE BYPRODUCT RESIDUES68411-72-3
CHLORINATED NAPHTHALENECDV575
CHLORINATED PHENOLS,NOS1EDF-104
CHLOROACETALDEHYDE107-20-0
CHLOROALKYL ETHERSEDF-066
CHLOROBENZENE108-90-7
CHLOROBENZILATE510-15-6
2-CHLOROETHYL VINYL ETHER110-75-8
CHLOROFLUOROCARBONSEDF-079
CHLOROFORM67-66-3
CHLOROMETHANE74-87-3
CHLOROMETHYL METHYL ETHER107-30-2
2-CHLORONAPHTHALENE91-58-7
2-CHLOROPHENOL95-57-8
3-CHLOROPROPIONITRILE542-76-7
CHROMIUM7440-47-3
CHROMIUM COMPOUNDSCMJ500
CHRYSENE218-01-9
CIANURO DE NIQUEL557-19-7
CITRUS RED NO.26358-53-8
COAL TARS8007-45-2
COPPER CYANIDE544-92-3
COPPERDIMETHYLDITHIOCARBAMATE137-29-1
CREOSOTES8001-58-9
CRESOL (MIXED ISOMERS)1319-77-3
CROTONALDEHYDE4170-30-3
CYANOGEN460-19-5
CYANOGEN BROMIDE506-68-3
CYANOGEN CHLORIDE506-77-4
CYCASIN14901-08-7
CYCLOATE1134-23-2
CYCLOPHOSPHAMIDE50-18-0
2,4-D94-75-7
2,4-D, SALTS, ESTERSEDF-101
DAUNOMYCIN20830-81-3
DAZOMET533-74-4
DDD72-54-8
DDE72-55-9
DDT50-29-3
DI-N-OCTYL PHTHALATE117-84-0
DI-N-PROPYLNITROSAMINE621-64-7
DIALLATE2303-16-4
2,4-DIAMINOTOLUENE95-80-7
2,6-DIAMINOTOLUENE823-40-5
3,4-DIAMINOTOLUENE496-72-0
DIAMINOTOLUENE (MIXED ISOMERS)25376-45-8
DIBENZ(A,H)ANTHRACENE53-70-3
DIBENZO[A,E]PYRENE192-65-4
DIBENZO[A,H]PYRENE189-64-0
DIBENZO[A,I]PYRENE189-55-9
DIBENZ[A,H]ACRIDINE226-36-8
DIBENZ[A,J]ACRIDINE224-42-0
1,2-DIBROMO-3-CHLOROPROPANE (DBCP)96-12-8
1,2-DIBROMOETHANE106-93-4
DIBUTYL PHTHALATE84-74-2
((DIBUTYLAMINO)THIO)METHYLCARBAMIC ACID, 2,2-DIMETHYL-2,3-DIHYDRO-7-BENZOFURANYL ESTER55285-14-8
2,6-DICHLORFENOL87-65-0
1,4-DICHLORO-2-BUTENE764-41-0
1,4-DICHLOROBENZENE106-46-7
1,3-DICHLOROBENZENE541-73-1
1,2-DICHLOROBENZENE95-50-1
DICHLOROBENZENE (MIXED ISOMERS)25321-22-6
3,3'-DICHLOROBENZIDINE91-94-1
DICHLORODIFLUOROMETHANE75-71-8
1,1-DICHLOROETHANE75-34-3
1,2-DICHLOROETHANE107-06-2
1,1-DICHLOROETHYLENE75-35-4
DICHLOROMETHANE75-09-2
2,4-DICHLOROPHENOL120-83-2
DICHLOROPHENYLARSINE696-28-6
DICHLOROPROPANE26638-19-7
1,2-DICHLOROPROPANE78-87-5
DICHLOROPROPANOL,NOS126545-73-3
1,3-DICHLOROPROPENE (MIXED ISOMERS)542-75-6
DIELDRIN60-57-1
DIETHYL PHTHALATE84-66-2
DIETHYLENE GLYCOL,DICARBAMATE5952-26-1
1,2-DIETHYLHYDRAZINE1615-80-1
DIETHYLSTILBESTROL56-53-1
1,4-DIHYDRO-1,4-DIKETONAPHTHALENE130-15-4
2,3-DIHYDRO-2,2-DIMETHYL-7-BENZOFURANOL1563-38-8
DIHYDROSAFROLE94-58-6
DIISOPROPYLFLUOROPHOSPHATE55-91-4
DIMETHOATE60-51-5
3,3'-DIMETHOXYBENZIDINE119-90-4
1,1-DIMETHYL HYDRAZINE57-14-7
DIMETHYL PHTHALATE131-11-3
DIMETHYL SULFATE77-78-1
1,1-DIMETHYL-2-PHENYLETHYLAMINE122-09-8
4-DIMETHYLAMINOAZOBENZENE60-11-7
7,12-DIMETHYLBENZ(A)ANTHRACENE57-97-6
DIMETHYLCARBAMOYL CHLORIDE79-44-7
1,2-DIMETHYLHYDRAZINE540-73-8
2,4-DIMETHYLPHENOL105-67-9
DIMETILAN644-64-4
2,4-DINITRO-6-CYCLOHEXYL PHENOL131-89-5
4,6-DINITRO-O-CRESOL534-52-1
4,6-DINITRO-O-CRESOL SALTSEDF-102
DINITROBENZENE25154-54-5
DINITROBUTYL PHENOL88-85-7
2,4-DINITROPHENOL51-28-5
2,4-DINITROTOLUENE121-14-2
2,6-DINITROTOLUENE606-20-2
1,4-DIOXANE123-91-1
DIPHENYLAMINE122-39-4
1,2-DIPHENYLHYDRAZINE122-66-7
DISULFIRAM97-77-8
DISULFOTON298-04-4
DITHALLIUM TRIOXIDE1314-32-5
DITHIOBIURET541-53-7
ENDOSULFAN115-29-7
ENDOTHALL145-73-3
ENDRIN72-20-8
ENDRIN METABOLITESEDF-105
EPICHLOROHYDRIN106-89-8
EPINEPHRINE51-43-4
1,2-ETHANEDIAMINE, N,N-DIMETHYL-N'-2-PYRIDINYL-N'-(2-THIENYLMETHYL)-91-80-5
ETHYL CYANIDE107-12-0
ETHYL DIPROPYLTHIOCARBAMATE759-94-4
ETHYL METHANESULFONATE62-50-0
ETHYL PHOSPHOROTHIOATE ((ETO)3PS)126-68-1
ETHYL ZIRAM14324-55-1
ETHYLENE GLYCOL MONOETHYL ETHER110-80-5
ETHYLENE OXIDE75-21-8
ETHYLENE THIOUREA96-45-7
ETHYLENEBISDITHIOCARBAMIC ACID, SALTS AND ESTERS111-54-6
ETHYLENEIMINE151-56-4
FAMPHUR52-85-7
FERBAM14484-64-1
FLUORANTHENE206-44-0
FLUORINE7782-41-4
FLUOROACETAMIDE640-19-7
FLUOROACETIC ACID, SODIUM SALT62-74-8
FORMALDEHYDE50-00-0
FORMETANATE HYDROCHLORIDE23422-53-9
FORMIC ACID64-18-6
FORMPARANATE17702-57-7
FULMINATE DE MERCURE628-86-4
GAMMA-LINDANE58-89-9
GLYCIDALDEHYDE765-34-4
7H-DIBENZO[C,G]CARBAZOLE194-59-2
HALOMETHANESEDF-070
HEPTACHLOR76-44-8
HEPTACHLOR EPOXIDE1024-57-3
HEPTACHLORODIBENZO-P-DIOXINSEDF-354
HEPTACHLORODIBENZOFURAN38998-75-3
HEXACHLORO-1,3-BUTADIENE87-68-3
1,1,2,3,3,3-HEXACHLORO-1-PROPENE1888-71-7
HEXACHLOROBENZENE118-74-1
HEXACHLOROCYCLOPENTADIENE77-47-4
HEXACHLORODIBENZODIOXIN34465-46-8
HEXACHLORODIBENZOFURAN55684-94-1
HEXACHLOROETHANE67-72-1
HEXACHLOROPHENE (HCP)70-30-4
HEXAETHYL TETRAPHOSPHATE AND COMPRESSED GAS MIXTURE757-58-4
HYDRAZINE302-01-2
HYDROFLUORIC ACID7664-39-3
HYDROGEN CYANIDE74-90-8
HYDROGEN SULFIDE7783-06-4
INDENO(1,2,3-CD)PYRENE193-39-5
3-IODO-2-PROPYNYL BUTYLCARBAMATE55406-53-6
ISODRIN465-73-6
ISOPROPYLMETHYLPYRAZOLYL DIMETHYLCARBAMATE119-38-0
ISOSAFROLE120-58-1
LASIOCARPINE303-34-4
LEAD7439-92-1
LEAD ACETATE301-04-2
LEAD COMPOUNDSLCT000
LEAD PHOSPHATE7446-27-7
LEAD SUBACETATE1335-32-6
MALEIC ANHYDRIDE108-31-6
MALONONITRILE109-77-3
MANGANESEDIMETHYLDITHIOCARBAMATE15339-36-3
MECHLORETHAMINE51-75-2
MELPHALAN148-82-3
MERCAPTODIMETHUR2032-65-7
MERCURY7439-97-6
MERCURY COMPOUNDSEDF-033
2-MESYL-2-METHYLPROPIONALDEHYDE O-METHYLCARBAMOYLOXIME1646-88-4
METHACRYLONITRILE126-98-7
METHAM SODIUM137-42-8
METHANAMINE, N-METHYL-N-NITROSO62-75-9
METHANETHIOL74-93-1
METHOMYL16752-77-5
METHOXYCHLOR72-43-5
METHYL BROMIDE74-83-9
METHYL CHLOROCARBONATE79-22-1
METHYL ETHYL KETONE78-93-3
METHYL ETHYL KETONE PEROXIDE1338-23-4
METHYL ETHYL PHOSPHORODITHIOATE (ETO)-2(MES)PS3288-58-2
METHYL HYDRAZINE60-34-4
METHYL IODIDE74-88-4
METHYL ISOCYANATE624-83-9
METHYL METHACRYLATE80-62-6
METHYL METHANESULFONATE66-27-3
METHYL PARATHION298-00-0
1-METHYL-1-NITROSO-3-NITROGUANIDINE70-25-7
2-METHYL-1-PROPANOL78-83-1
2-METHYL-2-PROPENOIC ACID, ETHYL ESTER97-63-2
3-METHYLCHLORANTHRENE56-49-5
METHYLENE BROMIDE74-95-3
4,4'-METHYLENEBIS(2-CHLOROANILINE)101-14-4
2-METHYLLACTONITRILE75-86-5
2-METHYLPYRIDINE109-06-8
METHYLTHIOURACIL56-04-2
METOLCARB1129-41-5
MEXACARBATE315-18-4
MITOMYCIN C50-07-7
MOLINATE2212-67-1
MUSTARD GAS505-60-2
N,N-BIS(2-CHLOROETHYL)-2-NAPHTHYLAMINE (CHLORNAPAZINE)494-03-1
N-ETHYL-N-NITROSOUREA759-73-9
N-NITROSO-N-METHYLUREA684-93-5
N-NITROSO-N-METHYLURETHANE615-53-2
N-NITROSODI-N-BUTYLAMINE924-16-3
N-NITROSODIETHANOLAMINE1116-54-7
N-NITROSODIETHYLAMINE55-18-5
N-NITROSOMETHYLETHYLAMINE10595-95-6
N-NITROSOMETHYLVINYLAMINE4549-40-0
N-NITROSOMORPHOLINE59-89-2
N-NITROSONORNICOTINE16543-55-8
N-NITROSOPIPERIDINE100-75-4
N-NITROSOPYRROLIDINE930-55-2
N-NITROSOSARCOSINE13256-22-9
NAPHTHALENE91-20-3
NICKEL7440-02-0
NICKEL CARBONYL13463-39-3
NICKEL COMPOUNDSNDB000
NICOTINE AND SALTS54-11-5
NITRIC ACID, THALLIUM(1+) SALT10102-45-1
NITRIC OXIDE10102-43-9
5-NITRO-O-TOLUIDINE99-55-8
NITROBENZENE98-95-3
NITROGEN DIOXIDE10102-44-0
NITROGEN MUSTARD N-OXIDE126-85-2
NITROGEN MUSTARD, N-OXIDE, HYDRO-CHLORIDE SALTEDF-106
NITROGLYCERIN55-63-0
4-NITROPHENOL100-02-7
2-NITROPROPANE79-46-9
NITROSAMINESNJH000
O,O-DIETHYL O-PYRAZINYL PHOSPHOROTHIOATE297-97-2
O-TOLUIDINE95-53-4
O-TOLUIDINE HYDROCHLORIDE636-21-5
OCTAMETHYLDIPHOSPHORAMIDE152-16-9
OSMIUM OXIDE OSO4 (T-4)20816-12-0
OXAMYL23135-22-0
P-CHLOROANILINE106-47-8
P-NITROANILINE100-01-6
P-TOLUIDINE106-49-0
PARALDEHYDE123-63-7
PARATHION56-38-2
PEBULATE1114-71-2
PENTACHLOROBENZENE608-93-5
PENTACHLORODIBENZO-P-DIOXIN36088-22-9
PENTACHLORODIBENZOFURAN30402-15-4
PENTACHLOROETHANE76-01-7
PENTACHLOROPHENOL87-86-5
PHENACETIN62-44-2
PHENOL108-95-2
PHENOL, 3-(1-METHYLETHYL)-, METHYLCARBAMATE64-00-6
PHENYLENEDIAMINE25265-76-3
PHENYLMERCURIC ACETATE62-38-4
PHENYLTHIOUREA103-85-5
PHORATE298-02-2
PHOSGENE75-44-5
PHOSPHINE7803-51-2
PHTHALIC ACID ESTERS,NOS1EDF-107
PHTHALIC ANHYDRIDE85-44-9
PHYSOSTIGMINE57-47-6
PHYSOSTIGMINE, SALICYLATE (1:1)57-64-7
POLYCHLORINATED BIPHENYLS1336-36-3
POTASSIUM CYANIDE151-50-8
POTASSIUM DIMETHYLDITHIOCARBAMATE128-03-0
POTASSIUM HYROXYMETHYL-N-METHYL-DITHIOCARBAMATE51026-28-9
POTASSIUM N-METHYLDITHIOCARBAMATE137-41-7
POTASSIUM SILVER CYANIDE506-61-6
POTASSIUMPENTACHLOROPHENATE7778-73-6
PROMECARB2631-37-0
PRONAMIDE23950-58-5
PROPANE SULTONE1120-71-4
PROPARGYL ALCOHOL107-19-7
PROPHAM122-42-9
PROPOXUR114-26-1
PROPYLENEIMINE75-55-8
PROPYLTHIOURACIL51-52-5
PROSULFOCARB52888-80-9
PYRIDINE110-86-1
PYRIDINE, 4-AMINO-504-24-5
QUINONE106-51-4
QUINTOZENE82-68-8
RESERPINE50-55-5
RESORCINOL108-46-3
SACCHARIN81-07-2
SAFROLE94-59-7
SELENIOUS ACID7783-00-8
SELENIUM7782-49-2
SELENIUM COMPOUNDSSBP500
SELENIUM SULFIDE7446-34-6
SELENIUM, TETRAKIS(DIMETHYL-DITHIOCARBAMATE144-34-3
2-SELENOUREA630-10-4
SILVER7440-22-4
SILVER COMPOUNDSSDO000
SILVER CYANIDE506-64-9
SODIUM CYANIDE143-33-9
SODIUM DIMETHYLDITHIOCARBAMATE128-04-1
SODIUM PENTACHLOROPHENATE131-52-2
SODIUMDIBUTYLDITHIOCARBAMATE136-30-1
STREPTOZOTOCIN18883-66-4
STRYCHNINE57-24-9
SULFALLATE95-06-7
SULFOTEP3689-24-5
2,4,5-T93-76-5
TEPP107-49-3
TETRABUTYLTHIURAMDISULFIDE1634-02-2
1,2,4,5-TETRACHLORBENZOL95-94-3
2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN (TCDD)1746-01-6
TETRACHLORODIBENZOFURAN30402-14-3
1,1,1,2-TETRACHLOROETHANE630-20-6
1,1,2,2-TETRACHLOROETHANE79-34-5
TETRACHLOROETHYLENE127-18-4
2,3,4,6-TETRACHLOROPHENOL58-90-2
2,3,4,6-TETRACHLOROPHENOL,POTASSIUM SALT53535-27-6
2,3,4,6-TETRACHLOROPHENOL,SODIUM SALT25567-55-9
TETRAETHYLLEAD78-00-2
1,2,3,6-TETRAHYDRO-3,6-DIOXOPYRIDAZINE123-33-1
TETRANITROMETHANE509-14-8
THALLIUM7440-28-0
THALLIUM CHLORIDE TLCL7791-12-0
THALLIUM COMPOUNDSTEJ500
THALLIUM SELENIDE12039-52-0
THALLIUM(I) CARBONATE6533-73-9
THALLIUM(I) SULFATE7446-18-6
THIOACETAMIDE62-55-5
THIODICARB59669-26-0
THIOFANOX39196-18-4
THIOPHANATE-METHYL23564-05-8
THIOSEMICARBAZIDE79-19-6
THIOUREA62-56-6
THIOUREA, (2-CHLOROPHENYL)-5344-82-1
THIRAM137-26-8
TOLUENE108-88-3
TOLUENE DIISOCYANATE (MIXED ISOMERS)26471-62-5
2,4,5-TP ACID (SILVEX)93-72-1
1,2-TRANS-DICHLOROETHYLENE156-60-5
TRIALLATE2303-17-5
TRIBROMOMETHANE75-25-2
2,2,2-TRICHLOROACETALDEHYDE75-87-6
1,2,4-TRICHLOROBENZENE120-82-1
1,1,2-TRICHLOROETHANE79-00-5
1,1,1-TRICHLOROETHANE71-55-6
TRICHLOROETHYLENE79-01-6
TRICHLOROFLUOROMETHANE75-69-4
TRICHLOROMETHANETHIOL75-70-7
2,4,6-TRICHLOROPHENOL88-06-2
2,4,5-TRICHLOROPHENOL95-95-4
1,2,3-TRICHLOROPROPANE96-18-4
TRIETHYLAMINE121-44-8
1,3,5-TRINITROBENZENE99-35-4
TRIS(1-AZIRIDINYL) PHOSPHINE SULFIDE (THIOTEPA)52-24-4
TRIS(2,3-DIBROMOPROPYL) PHOSPHATE126-72-7
TRYPAN BLUE72-57-1
URACIL MUSTARD66-75-1
URETHANE51-79-6
VANADIUM OXIDE (5)1314-62-1
VERNOLATE1929-77-7
VINYL CHLORIDE75-01-4
WARFARIN AND SALTS81-81-2
ZINC CYANIDE557-21-1
ZINC PHOSPHIDE1314-84-7
ZIRAM137-30-4

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