Regulations last checked for updates: May 14, 2024

Title 40 - Protection of Environment last revised: May 10, 2024
All TitlesTitle 40Chapter IPart 63Subpart FFFFAppendix - Table 8 to Subpart FFFF of Part 63—Partially Soluble Hazardous Air Pollutants
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Appendix - Table 8 to Subpart FFFF of Part 63—Partially Soluble Hazardous Air Pollutants

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:

Chemical name . . . CAS No.
1. 1,1,1-Trichloroethane (methyl chloroform)71556
2. 1,1,2,2-Tetrachloroethane79345
3. 1,1,2-Trichloroethane79005
4. 1,1-Dichloroethylene (vinylidene chloride)75354
5. 1,2-Dibromoethane106934
6. 1,2-Dichloroethane (ethylene dichloride)107062
7. 1,2-Dichloropropane78875
8. 1,3-Dichloropropene542756
9. 2,4,5-Trichlorophenol95954
10. 1,4-Dichlorobenzene106467
11. 2-Nitropropane79469
12. 4-Methyl-2-pentanone (MIBK)108101
13. Acetaldehyde75070
14. Acrolein107028
15. Acrylonitrile107131
16. Allyl chloride107051
17. Benzene71432
18. Benzyl chloride100447
19. Biphenyl92524
20. Bromoform (tribromomethane)75252
21. Bromomethane74839
22. Butadiene106990
23. Carbon disulfide75150
24. Chlorobenzene108907
25. Chloroethane (ethyl chloride)75003
26. Chloroform67663
27. Chloromethane74873
28. Chloroprene126998
29. Cumene98828
30. Dichloroethyl ether111444
31. Dinitrophenol51285
32. Epichlorohydrin106898
33. Ethyl acrylate140885
34. Ethylbenzene100414
35. Ethylene oxide75218
36. Ethylidene dichloride75343
37. Hexachlorobenzene118741
38. Hexachlorobutadiene87683
39. Hexachloroethane67721
40. Methyl methacrylate80626
41. Methyl-t-butyl ether1634044
42. Methylene chloride75092
43. N-hexane110543
44. N,N-dimethylaniline121697
45. Naphthalene91203
46. Phosgene75445
47. Propionaldehyde123386
48. Propylene oxide75569
49. Styrene100425
50. Tetrachloroethylene (perchloroethylene)127184
51. Tetrachloromethane (carbon tetrachloride)56235
52. Toluene108883
53. Trichlorobenzene (1,2,4-)120821
54. Trichloroethylene79016
55. Trimethylpentane540841
56. Vinyl acetate108054
57. Vinyl chloride75014
58. Xylene (m)108383
59. Xylene (o)95476
60. Xylene (p)106423
[68 FR 63888, Nov. 10, 2003, as amended at 70 FR 38560, July 1, 2005; 71 FR 40341, July 14, 2006]
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.
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