40 CFR Table 1
Organic Hazardous Air Pollutants
June 9, 2020
You must use the organic HAP information listed in the following table to determine which of the liquids handled at your facility meet the HAP content criteria in the definition of Organic Liquid in §63.2406.
Open Table
| Compound name | CAS No.1 |
|---|---|
| 2,4-D salts and esters | 94-75-7 |
| Acetaldehyde | 75-07-0 |
| Acetonitrile | 75-05-8 |
| Acetophenone | 98-86-2 |
| Acrolein | 107-02-8 |
| Acrylamide | 79-06-1 |
| Acrylic acid | 79-10-7 |
| Acrylonitrile | 107-13-1 |
| Allyl chloride | 107-05-1 |
| Aniline | 62-53-3 |
| Benzene | 71-43-2 |
| Biphenyl | 92-52-4 |
| Butadiene (1,3-) | 106-99-0 |
| Carbon tetrachloride | 56-23-5 |
| Chloroacetic acid | 79-11-8 |
| Chlorobenzene | 108-90-7 |
| 2-Chloro-1,3-butadiene (Chloroprene) | 126-99-8 |
| Chloroform | 67-66-3 |
| m-Cresol | 108-39-4 |
| o-Cresol | 95-48-7 |
| p-Cresol | 106-44-5 |
| Cresols/cresylic acid | 1319-77-3 |
| Cumene | 98-82-8 |
| Dibenzofurans | 132-64-9 |
| Dibutylphthalate | 84-74-2 |
| Dichloroethane (1,2-) (Ethylene dichloride) (EDC) | 107-06-2 |
| Dichloropropene (1,3-) | 542-75-6 |
| Diethanolamine | 111-42-2 |
| Diethyl aniline (N,N-) | 121-69-7 |
| Diethylene glycol monobutyl ether | 112-34-5 |
| Diethylene glycol monomethyl ether | 111-77-3 |
| Diethyl sulfate | 64-67-5 |
| Dimethyl formamide | 68-12-2 |
| Dimethylhydrazine (1,1-) | 57-14-7 |
| Dioxane (1,4-) (1,4-Diethyleneoxide) | 123-91-1 |
| Epichlorohydrin (1-Chloro-2,3-epoxypropane) | 106-89-8 |
| Epoxybutane (1,2-) | 106-88-7 |
| Ethyl acrylate | 140-88-5 |
| Ethylbenzene | 100-41-4 |
| Ethyl chloride (Chloroethane) | 75-00-3 |
| Ethylene dibromide (Dibromomethane) | 106-93-4 |
| Ethylene glycol | 107-21-1 |
| Ethylene glycol dimethyl ether | 110-71-4 |
| Ethylene glycol monomethyl ether | 109-86-4 |
| Ethylene glycol monomethyl ether acetate | 110-49-6 |
| Ethylene glycol monophenyl ether | 122-99-6 |
| Ethylene oxide | 75-21-8 |
| Ethylidene dichloride (1,1-Dichloroethane) | 75-34-3 |
| Formaldehyde | 50-00-0 |
| Hexachloroethane | 67-72-1 |
| Hexane | 110-54-3 |
| Hydroquinone | 123-31-9 |
| Isophorone | 78-59-1 |
| Maleic anhydride | 108-31-6 |
| Methanol | 67-56-1 |
| Methyl chloride (Chloromethane) | 74-87-3 |
| Methylene chloride (Dichloromethane) | 75-09-2 |
| Methylenedianiline (4,4′-) | 101-77-9 |
| Methylene diphenyl diisocyanate | 101-68-8 |
| Methyl hydrazine | 60-34-4 |
| Methyl isobutyl ketone (Hexone) (MIBK) | 108-10-1 |
| Methyl methacrylate | 80-62-6 |
| Methyl tert-butyl ether (MTBE) | 1634-04-4 |
| Naphthalene | 91-20-3 |
| Nitrobenzene | 98-95-3 |
| Phenol | 108-9-52 |
| Phthalic anhydride | 85-44-9 |
| Polycyclic organic matter | 50-32-8 |
| Propionaldehyde | 123-38-6 |
| Propylene dichloride (1,2-Dichloropropane) | 78-87-5 |
| Propylene oxide | 75-56-9 |
| Quinoline | 91-22-5 |
| Styrene | 100-42-5 |
| Styrene oxide | 96-09-3 |
| Tetrachloroethane (1,1,2,2-) | 79-34-5 |
| Tetrachloroethylene (Perchloroethylene) | 127-18-4 |
| Toluene | 108-88-3 |
| Toluene diisocyanate (2,4-) | 584-84-9 |
| o-Toluidine | 95-53-4 |
| Trichlorobenzene (1,2,4-) | 120-82-1 |
| Trichloroethane (1,1,1-) (Methyl chloroform) | 71-55-6 |
| Trichloroethane (1,1,2-) (Vinyl trichloride) | 79-00-5 |
| Trichloroethylene | 79-01-6 |
| Triethylamine | 121-44-8 |
| Trimethylpentane (2,2,4-) | 540-84-1 |
| Vinyl acetate | 108-05-4 |
| Vinyl chloride (Chloroethylene) | 75-01-4 |
| Vinylidene chloride (1,1-Dichloroethylene) | 75-35-4 |
| Xylene (m-) | 108-38-3 |
| Xylene (o-) | 95-47-6 |
| Xylene (p-) | 106-42-3 |
| Xylenes (isomers and mixtures) | 1330-20-7 |
1CAS numbers refer to the Chemical Abstracts Services registry number assigned to specific compounds, isomers, or mixtures of compounds.
[69 FR 5063, Feb. 3, 2004, as amended at 71 FR 42913, July 28, 2006]
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