40 CFR Table 4 to Subpart F of Part 63
Organic Hazardous Air Pollutants Subject to Cooling Tower Monitoring Requirements in §63.104
June 9, 2020
Open Table
| Chemical name | CAS Numbera |
|---|---|
| Acetaldehyde | 75070 |
| Acetonitrile | 75058 |
| Acetophenone | 98862 |
| Acrolein | 107028 |
| Acrylonitrile | 107131 |
| Allyl chloride | 107051 |
| Aniline | 62533 |
| Anisidine (o-) | 90040 |
| Benzene | 71432 |
| Benzyl chloride | 100447 |
| Biphenyl | 92524 |
| Bromoform | 75252 |
| Butadiene (1,3-) | 106990 |
| Carbon disulfide | 75150 |
| Carbon tetrachloride | 56235 |
| Chloroacetophenone (2-) | 532274 |
| Chlorobenzene | 108907 |
| 2-Chloro-1,3-butadiene (Chloroprene) | 126998 |
| Chloroform | 67663 |
| Cresol and cresylic acid (o-) | 95487 |
| Cresol and cresylic acid (m-) | 108394 |
| Cresol and cresylic acid (p-) | 106445 |
| Cumene | 98828 |
| Dichlorobenzene (p-) | 106467 |
| Dichlorobenzidine (3,3″-) | 91941 |
| Dichloroethane (1,2-) (Ethylene dichloride) (EDC) | 107062 |
| Dichloroethyl ether (Bis(2-chloroethyl)ether) | 111444 |
| Dichloropropene (1,3-) | 542756 |
| Diethylene glycol diethyl ether | 112367 |
| Diethylene glycol dimethyl ether | 111966 |
| Diethyl sulfate | 64675 |
| Dimethylaniline (N,N-) | 121697 |
| Dimethylhydrazine (1,1-) | 57147 |
| Dimethyl phthalate | 131113 |
| Dimethyl sulfate | 77781 |
| Dinitrophenol (2,4-) | 51285 |
| Dinitrotoluene (2,4-) | 121142 |
| Dioxane (1,4-) (1,4-Diethyleneoxide) | 123911 |
| Epichlorohydrin (1-Chloro-2,3-epoxypropane) | 106898 |
| Ethyl acrylate | 140885 |
| Ethylbenzene | 100414 |
| Ethyl chloride (Chloroethane) | 75003 |
| Ethylene dibromide (Dibromoethane) | 106934 |
| Ethylene glycol dimethyl ether | 110714 |
| Ethylene glycol monobutyl ether | 111762 |
| Ethylene glycol monobutyl ether acetate | 112072 |
| Ethylene glycol monoethyl ether acetate | 111159 |
| Ethylene glycol monoethyl ether | 110805 |
| Ethylene glycol monomethyl ether | 109864 |
| Ethylene glycol monomethyl ether acetate | 110496 |
| Ethylene glycol monopropyl ether | 2807309 |
| Ethylene oxide | 75218 |
| Ethylidene dichloride (1,1-Dichloroethane) | 75343 |
| Formaldehyde | 50000 |
| Hexachlorobenzene | 118741 |
| Hexachlorobutadiene | 87683 |
| Hexachloroethane | 67721 |
| Hexane | 110543 |
| Isophorone | 78591 |
| Methanol | 67561 |
| Methyl bromide (Bromomethane) | 74839 |
| Methyl chloride (Chloromethane) | 74873 |
| Methyl hydrazine | 60344 |
| Methyl isobutyl ketone (Hexone) | 108101 |
| Methyl methacrylate | 80626 |
| Methyl tert-butyl ether | 1634044 |
| Methylene chloride (Dichloromethane) | 75092 |
| Methylenedianiline (4,4″-) | 101779 |
| Naphthalene | 91203 |
| Nitrobenzene | 98953 |
| Nitropropane (2-) | 79469 |
| Phenol | 108952 |
| Phenylenediamine (p-) | 106503 |
| Phosgene | 75445 |
| Propionaldehyde | 123386 |
| Propylene dichloride (1,2-Dichloropropane) | 78875 |
| Propylene oxide | 75569 |
| Quinone | 106514 |
| Styrene | 100425 |
| Tetrachloroethane (1,1,2,2-) | 79345 |
| Tetrachloroethylene (Perchloroethylene) | 127184 |
| Toluene | 108883 |
| Toluidine (o-) | 95534 |
| Trichlorobenzene (1,2,4-) | 120821 |
| Trichloroethane (1,1,1-) (Methyl chloroform) | 71556 |
| Trichloroethane (1,1,2-) (Vinyl trichloride) | 79005 |
| Trichloroethylene | 79016 |
| Trichlorophenol (2,4,5-) | 95954 |
| Triethylamine | 121448 |
| Trimethylpentane (2,2,4-) | 540841 |
| Vinyl acetate | 108054 |
| Vinyl chloride (chloroethylene) | 75014 |
| Vinylidene chloride (1,1-Dichloroethylene) | 75354 |
| Xylene (m-) | 108383 |
| Xylene (o-) | 95476 |
| Xylene (p-) | 106423 |
aCAS Number = Chemical Abstract Service number.
[62 FR 2740, Jan. 17, 1997, as amended at 71 FR 76614, Dec. 21, 2006]
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