116.4—Designation of hazardous substances.

The elements and compounds appearing in Tables 116.4 A and B are designated as hazardous substances in accordance with section 311(b)(2)(A) of the Act. This designation includes any isomers and hydrates, as well as any solutions and mixtures containing these substances. Synonyms and Chemical Abstract System (CAS) numbers have been added for convenience of the user only. In case of any disparity the common names shall be considered the designated substance.
Table 116.4A—List of Hazardous Substances




Common name CAS No. Synonyms Isomers CAS No.
Acetaldehyde 75070 Ethanal, ethyl aldehyde, acetic aldehyde
Acetic acid 64197 Glacial acetic acid, vinegar acid
Acetic anhydride 108247 Acetic oxide, acetyl oxide
Acetone cyanohydrin 75865 2-methyllactonitrile, alpha-hydroxyisobutyronitrile
Acetyl bromide 506967
Code of Federal Regulations 137
Acetyl chloride 79367
Acrolein 107028 2-propenal, acrylic aldehyde, acrylaldehyde, acraldehyde
Acrylonitrile 107131 Cyanoethylene, Fumigrain, Ventox, propeneitrile, vinyl cyanide
Adipic acid 124049 Hexanedioic acid
Aldrin 309002 Octalene, HHDN
Allyl alcohol 107186 2-propen-1-ol, 1-propenol-3, vinyl carbinol
Allyl chloride 107051 3-chloropropene, 3-chloropropylene, Chlorallylene
Aluminum sulfate 10043013 Alum
Ammonia 7664417
Ammonium acetate 631618 Acetic acid ammonium, salt
Ammonium benzoate 1863634
Ammonium bicarbonate 1066337 Acid ammonium carbonate, ammonium hydrogen carbonate
Ammonium bichromate 7789095
Ammonium bifluoride 1341497 Acid ammonium fluoride, ammonium hydrogen fluoride
Ammonium bisulfite 10192300
Ammonium carbamate 1111780 Ammonium aminoformate
Ammonium carbonate 506876
Ammonium chloride 12125029 Ammonium muriate, sal ammoniac, salmiac, Amchlor
Ammonium chromate 7788989
Ammonium citrate dibasic 3012655 Diammonium citrate, citric acid diammonium salt
Ammonium fluoborate 13826830 Ammonium fluoroborate, ammonium borofluoride
Ammonium fluoride 12125018 Neutral ammonium fluoride
Ammonium hydroxide 1336216
Ammonium oxalate 6009707
5972736
14258492
Ammonium silicofluoride 16919190 Ammonium fluosilicate
Ammonium sulfamate 7773060 Ammate, AMS, ammonium amidosulfate
Ammonium sulfide 12135761
Ammonium sulfite 10196040
10192300
Ammonium tartrate 3164292 Tartaric acid ammonium salt
14307438
Ammonium thiocyanate 1762954 Ammonium rhodanide, ammonium sulfocyanate, ammonium sulfocyanide
Amly acetate 628637 Amylacetic ester iso- 123922
Pear oil sec- 626380
Banana oil tert- 625161
Aniline 62533 Aniline oil, phenylamine, aminobenzene, aminophen, kyanol
Antimony pentachloride 7647189
Antimony potassium tartrate 28300745 Tartar emetic, tartrated antimony, tartarized antimony, potassium antimonyltartrate
Antimony tribromide 7789619
Antimony trichloride 10025919 Butter of antimony
Antimony trifluoride 7783564 Antimony fluoride
Antimony trioxide 1309644 Diantimony trioxide, flowers of antimony
Arsenic disulfide 1303328 Red arsenic sulfide
Arsenic pentoxide 1303282 Arsenic acid anhydride, arsenic oxide
Arsenic trichloride 7784341 Arsenic chloride, arsenious chloride, arsenous chloride, butter of arsenic
Arsenic trioxide 1327533 Arsenious acid, arsenious oxide, white arsenic
Arsenic trisulfide 1303339 Arsenious sulfide, yellow arsenic sulfide
Barium cyanide 542621
Benzene 71432 Cyclohexatriene, benzol
Benzoic acid 65850 Benzenecarboxylic acid, phenylformic acid, dracylic acid
Benzonitrile 100470 Phenyl cyanide, cyanobenzene
Benzoyl chloride 98884 Benzenecarbonyl chloride
Benzyl chloride 100447
Beryllium chloride 7787475
Beryllium fluoride 7787497
Beryllium nitrate 7787555
13597994
Code of Federal Regulations 138
Butyl acetate 123864 Acetic acid butyl ester iso- 110190
sec- 105464
tert- 540885
Butylamine 109739 1-aminobutane iso- 78819
sec- 513495
sec- 13952846
tert- 75649
n/butyl phthalate 84742 1.2-benzenedicarboxylic acid, dibutyl ester, dibutyl phthalate
Butyric acid 107926 Butanoic acid, ethylacetic acid iso- 79312
Cadmium acetate 543908
Cadmium bromide 7789426
Cadmium chloride 10108642
Calcium arsenate 7778441 Tricalcium orthoarsenate
Calcium arsenite 52740166
Calcium carbide 75207 Carbide, acetylenogen
Calcium chromate 13765190 Calcium chrome yellow, geblin, yellow ultramarine
Calcium cyanide 592018
Calcium dodecylbenzenesulfonate 26264062
Calcium hypochlorite 7778543
Captan 133062 Orthocide-406, SR-406, Vancide-89
Carbaryl 63252 Sevin
Carbofuran 1563662 Furadan
Carbon disulfide 75150 Carbon bisulfide, dithiocarbonic anhydride
Carbon tetrachloride 56235 Tetrachloromethane Perchloromethane
Chlordane 57749 Toxichlor, chlordan
Chlorine 75003
Chlorobenzene 108907 Monochlorobenzene, benzene chloride
Chloroform 67663 Trichloromethane
Chlorpyrifos 2921882 Dursban
Chlorosulfonic acid 7790945 Sulfuric chlorohydrin
Chromic acetate 1066304
Chromic acid 11115745 Chromic anhydride, chromium trioxide
Chromic sulfate 10101538
Chromous chloride 10049055
Cobaltous bromide 7789437 Cobalt bromide
Coabaltous formate 544183 Cobalt formate
Cobaltous sulfamate 14017415 Cobalt sulfamate
Coumaphos 56724 Co-Ral
Cresol 1319773 Cresylic acid m- 108394
Hydroxytoluene o- 95487
p- 106445
Crotonaldehyde 4170303 2-butenal propylene aldelhyde
Cupric acetate 142712 Copper acetate, crystalized verdigris
Cupric acetoarsenite 12002038 Copper acetoarsenite, copper acetate arsenite, Paris green
Cupric chloride 7447394 Copper chloride
Cupric nitrate 3251238 Copper nitrate
Cupric oxalate 5893663 Copper oxalate
Cupric sulfate 7758987 Copper sulfate
Cupric sulfate, ammoniated 10380297 Ammoniated copper sulfate
Cupric tartrate 815827 Copper tartrate
Cyanogen chloride 506774
Cyclohexane 110827 Hexahydrobenzene, hexamethylene, hexanaphthene
2,4-D acid 94757 2,4-dichlorophenoxyacetic acid
2,4-D ester 94111 2,4-dichlorophenoxyacetic acid ester
94791
94804
1320189
1928387
1928616
1929733
2971382
25168267
53467111
DDT 50293 p,p′-DDT
Diazinon 333415 Dipofene, Diazitol, Basudin, Spectracide
Dicamba 1918009 2-methoxy-3,6-dichlorobenzoic acid
Dichlobenil 1194656 2,6-dichlorobenzonitrile, 2,6-DBN
Dichlone 117806 Phygon, dichloronaphthoquinone
Code of Federal Regulations 139
Dichlorobenzene 25321226 Di-chloricide Ortho 95501
Paramoth (Para) Para 106467
Dichloropropane 26638197 Propylene dichloride 1,1 78999
1,2 78875
1,3 142289
Dichloropropene 26952238 1,3 542756
2,3 78886
Dichloropropene-dichloropropane (mixture) 8003198 D-D mixture Vidden D
2,2-Dichloropropionic acid 75990 Dalapon
Dichlorvos 62737 2,2-dichlorovinyl dimethyl phosphate, Vapona
Dicofol 115322 Di(p-chlorophenyl)-trichloromethylcarbinol, DTMC, dicofol
Dieldrin 60571 Alvit
Diethylamine 109897
Dimethylamine 124403
Dinitrobenzene (mixed) 25154545 Dinitrobenzol m- 99650
o- 528290
p- 100254
Dinitrophenol 51285 Aldifen (2,5-) 329715
(2,4-)
(2,6-) 573568
Dinitrotoluene 25321146 DNT 2,4 121142
2,6 606202
3,4 610399
Diquat 85007 Aquacide
2764729 Dextrone, Reglone, Diquat dibromide
Disulfoton 298044 Di-syston
Diuron 330541 DCMU, DMU
Dodecylbenzenesulfonic acid 27176870
Endosulfan 115297 Thiodan
Endrin 72208 Mendrin, Compound 269
Epichlorohydrin 106898 -chloropropylene oxide
Ethion 563122 Nialate, ethyl methylene, phosphorodithioate
Ethylbenzene 100414 Phenylethane
Ethylenediamine 107153 1,2-diaminoethane
Ethylenediamine-tetraacetic acid (EDTA) 60004 Edetic acid, Havidote, (ethylenedinitrilo)-tetraacetic acid
Ethylene dibromide 106934 1,2-dibromoethane acetylene dibromide sym-dibromoethylene
Ethylene dichloride 107062 1,2-dichloroethane sym-bichloroethane
Ferric ammonium citrate 1185575 Ammonium ferric citrate
Ferric ammonium oxalate 2944674 Ammonium ferric oxalate
55488874
Ferric chloride 7705080 Flores martis, iron trichloride
Ferric fluoride 7783508
Ferric nitrate 10421484 Iron nitrate
Ferric sulfate 10028225 Ferric persulfate, ferric sesquisulfate, ferric tersulfate
Ferrous ammonium sulfate 10045893 Mohr's salt, iron ammonium sulfate
Ferrous chloride 7758943 Iron chloride, iron dichloride, iron protochloride
Ferrous sulfate 7720787 Green vitriol
7782630 Iron vitriol, iron sulfate, iron protosulfate
Formaldehyde 50000 Methyl aldehyde, methanal, formalin
Formic acid 64186 Methanoic acid
Fumaric acid 110178 Trans-butenedioic acid, trans-1,2-ethylenedicarboxylic acid, boletic acid, allomaleic acid
Furfural 98011 2-furaldehyde, pyromucic aldehyde
Guthion 86500 Gusathion, azinphos-methyl
Heptachlor 76448 Velsicol-104, Drinox, Heptagran
Hexachlorocyclopentadiene 77474 Perchlorocyclopentadiene
Hydrochloric acid 7647010 Hydrogen chloride, muriatic acid
Hydrofluoric acid 7664393 Fluohydric acid
Hydrogen cyanide 74908 Hydrocyanic acid
Hydrogen sulfide 7783064 Hydrosulfuric acid sulfur hydride
Isoprene 78795 2-methyl-1,3-butadiene
Isopropanolamine dodecylbenzenesulfonate 42504461
Kepone 143500 Chlordecone 1,1a,3,3a,4,5,5,5a,5b,6-decachlorooctahydro-1,3,4-metheno-2H-cyclobuta(cd)pentalen-2-one
Lead acetate 301042 Sugar of lead
Code of Federal Regulations 140
Lead arsenate 7784409
7645252
10102484
Lead chloride 7758954
Lead fluoborate 13814965 Lead fluoroborate
Lead fluoride 7783462 Lead difluoride, plumbous fluoride
Lead iodide 10101630
Lead nitrate 10099748
Lead stearate 7428480 Stearic acid lead salt
1072351
52652592
Lead sulfate 7446142
Lead sulfide 1314870 Galena
Lead thiocyanate 592870 Lead sulfocyanate
Lindane 58899 Gamma-BHC, gamma-benzene hexachloride
Lithium chromate 14307358
Malathion 121755 Phospothion
Maleic acid 110167 Cis-butenedioic acid, cis-1,2-ethylenedicarboxylic acid, toxilic acid
Maleic anhydride 108316 2,5-furandione, cis-butenedioic anhydride, toxilic anhydride
Mercaptodimethur 203657 Mesurol
Mercuric cyanide 592041 Mercury cyanide
Mercuric nitrate 10045940 Mercury nitrate, mercury pernitrate
Mercuric sulfate 7783359 Mercury sulfate, mercury persulfate
Mercuric thiocyanate 592858 Mercury thiocyanate, mercuric sulfocyanate, mercuric sulfocyanide
Mercurous nitrate 7782867
10415755 Mercury protonitrate
Methoxychlor 72435 DMDT, methoxy-DDT
Methyl mercaptan 74931 Methanethiol, mercaptomethane, methyl sulfhydrate, thiomethyl alcohol
Methyl methacrylate 80626 Methacrylic acid methyl ester, methyl-2-methyl-2-propenoate
Methyl parathion 298000 Nitrox-80
Mevinphos 7786347 Phosdrin
Mexacarbate 315184 Zectran
Monoethylamine 75047 Ethylamine, aminoethane
Monomethylamine 74895 Methylamine, aminomethane
Naled 300765 Dibrom
Naphthalene 91203 White tar, tar camphor, naphthalin
Naphthenic acid 1338245 Cyclohexanecarboxylic acid, hexahydrobenzoic acid
Nickel ammonium sulfate 15699180 Ammonium nickel sulfate
Nickel chloride 37211055 Nickelous chloride
7718549
Nickel hydroxide 12054487 Nickelous hydroxide
Nickel nitrate 14216752
Nickel sulfate 7786814 Nickelous sulfate
Nitric acid 7697372 Aqua fortis
Nitrobenzene 98953 Nitrobenzol, oil of mirbane
Nitrogen dioxide 10102440 Nitrogen tetraoxide
Nitrophenol (mixed) 25154556 Mononitrophenol m- 554847
o- 88755
p- 100027
Nitrotoluene 1321126 Ortho 88722
Meta 99081
Para 99990
Paraformaldehyde 30525894 Paraform, Formagene, Triformol, polymerized formaldehyde, polyoxymethylene
Parathion 56382 DNTP, Niran
Pentachlorophenol 87865 PCP, Penta
Phenol 108952 Carbolic acid, phenyl hydroxide, hydroxybenzene, oxybenzene
Phosgene 75445 Diphosgene, carbonyl chloride, chloroformyl chloride
Phosphoric acid 7664382 Orthophosphoric acid
Phosphorus 7723140 Black phosphorus, red phosphorus, white phosphorus, yellow phosphorus
Phosphorus oxychloride 10025873 Phosphoryl chloride, phosphorus chloride
Phosphorus pentasulfide 1314803 Phosphoric sulfide, thiophosphoric anhydride, phosphorus persulfide
Phosphorus trichloride 7719122 Phosphorous chloride
Code of Federal Regulations 141
Polychorinated biphenyls 1336363 PCB, Aroclor, polychlorinated diphenyls
Potassium arsenate 7784410
Potassium arsenite 10124502 Potassium metaarsenite
Potassium bichromate 7778509 Potassium dichromate
Potassium chromate 7789006
Potassium cyanide 151508
Potassium hydroxide 1310583 Potassium hydrate, caustic potash, potassa
Potassium permanganate 7722647 Chameleon mineral
Propargite 2312358 Omite
Propionic acid 79094 Propanoic acid, methylacetic acid, ethylformic acid
Propionic anhydride 123626 Propanoic anhydride, methylacetic anhydride
Propylene oxide 75569 Propene oxide
Pyrethrins 121299 Pyrethrin I
121211 Pyrethrin II
Quinoline 91225 1-benzazine, benzo(b)pyridine, leuocoline, chinoleine, leucol
Resorcinol 108463 Resorcin, 1,3-benzenediol, meta-dihydroxybenzene
Selenium oxide 7446084 Selenium dioxide
Silver nitrate 7761888 Nitric acid silver (1 ) salt lunar caustic
Sodium 7440235 Natrium
Sodium arsenate 7631892 Disodium arsenate
Sodium arsenite 7784465 Sodium metaarsenite
Sodium bichromate 10588019 Sodium dichromate
Sodium bifluoride 1333831
Sodium bisulfite 7631905 Sodium acid sulfite, sodium hydrogen sulfite
Sodium chromate 7775113
Sodium cyanide 143339
Sodium dodecylbenzene-sulfonate 25155300
Sodium fluoride 7681494 Villiaumite
Sodium hydrosulfide 16721805 Sodium hydrogen sulfide
Sodium hydroxide 1310732 Caustic soda, soda lye, sodium hydrate
Sodium hypochlorite 7681529 Bleach
10022705
Sodium methylate 124414 Sodium methoxide
Sodium nitrite 7632000
Sodium phosphate, dibasic 7558794
10039324
10140655
Sodium phosphate, tribasic 7785844
7601549
10101890
10361894
7758294
10124568
Sodium selenite 10102188
7782823
Strontium chromate 7789062
Strychnine 57249
Styrene 100425 Vinylbenzene, phenylethylene, styrol, styrolene, cinnamene, cinnamol
Sulfuric acid 7664939 Oil of vitriol, oleum
Sulfur monochloride 12771083 Sulfur chloride
2,4,5-T acid 93765 2,4,5-trichlorophenoxyacetic acid
2,4,5-T amines 6369966 Acetic acid (2,4,5-trichlorophenoxy)-compound with N,N-dimethylmethanamine (1:1)
6369977 Acetic acid (2,4,5-trichlorophenoxy)-compound with N-methylmethanamine (1:1)
1319728 Acetic acid (2,4,5-trichlorophenoxy)-compound with 1-amino-2-propanol (1:1)