{"data":{"id":"us/40-cfr-table-8-to-subpart-ffff-of-part-63","jurisdiction":"us","citation":"40 CFR Table 8 to Subpart FFFF of Part 63","heading":"Table 8 to Subpart FFFF of Part 63—Partially Soluble Hazardous Air Pollutants","body":"As specified in § 63.2485, the partially soluble HAP in wastewater that are subject to management and treatment requirements in this subpart FFFF are listed in the following table:\nChemical name . . . CAS No.\n1. 1,1,1-Trichloroethane (methyl chloroform) 71556\n2. 1,1,2,2-Tetrachloroethane 79345\n3. 1,1,2-Trichloroethane 79005\n4. 1,1-Dichloroethylene (vinylidene chloride) 75354\n5. 1,2-Dibromoethane 106934\n6. 1,2-Dichloroethane (ethylene dichloride) 107062\n7. 1,2-Dichloropropane 78875\n8. 1,3-Dichloropropene 542756\n9. 2,4,5-Trichlorophenol 95954\n10. 1,4-Dichlorobenzene 106467\n11. 2-Nitropropane 79469\n12. 4-Methyl-2-pentanone (MIBK) 108101\n13. Acetaldehyde 75070\n14. Acrolein 107028\n15. Acrylonitrile 107131\n16. Allyl chloride 107051\n17. Benzene 71432\n18. Benzyl chloride 100447\n19. Biphenyl 92524\n20. Bromoform (tribromomethane) 75252\n21. Bromomethane 74839\n22. Butadiene 106990\n23. Carbon disulfide 75150\n24. Chlorobenzene 108907\n25. Chloroethane (ethyl chloride) 75003\n26. Chloroform 67663\n27. Chloromethane 74873\n28. Chloroprene 126998\n29. Cumene 98828\n30. Dichloroethyl ether 111444\n31. Dinitrophenol 51285\n32. Epichlorohydrin 106898\n33. Ethyl acrylate 140885\n34. Ethylbenzene 100414\n35. Ethylene oxide 75218\n36. Ethylidene dichloride 75343\n37. Hexachlorobenzene 118741\n38. Hexachlorobutadiene 87683\n39. Hexachloroethane 67721\n40. Methyl methacrylate 80626\n41. Methyl-t-butyl ether 1634044\n42. Methylene chloride 75092\n43. N-hexane 110543\n44. N,N-dimethylaniline 121697\n45. Naphthalene 91203\n46. Phosgene 75445\n47. Propionaldehyde 123386\n48. Propylene oxide 75569\n49. Styrene 100425\n50. Tetrachloroethylene (perchloroethylene) 127184\n51. Tetrachloromethane (carbon tetrachloride) 56235\n52. Toluene 108883\n53. Trichlorobenzene (1,2,4-) 120821\n54. Trichloroethylene 79016\n55. Trimethylpentane 540841\n56. Vinyl acetate 108054\n57. Vinyl chloride 75014\n58. Xylene (m) 108383\n59. Xylene (o) 95476\n60. Xylene (p) 106423","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES","Subpart FFFF—National Emission Standards for Hazardous Air Pollutants: Miscellaneous Organic Chemical Manufacturing"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"9ac482ab1c663cab41d5606903b84fb6e8dec23c8143b74f6687bf1ac0913b80","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-7-to-subpart-ffff-of-part-63","next":"us/40-cfr-table-9-to-subpart-ffff-of-part-63"},"notice":"GroundRules: Original legal text. Not legal advice."}