 | Chemical Name | CAS Number | EPCRA TPQ Sec. 302 (in Pounds) | EPCRA Sec. 304 (in Pounds) | CERCLA RQ Sec. 103 (in Pounds) | TRI Sec. 313 | RCRA Code | RMP TQ Sec. 112r (in Pounds) | |
 | T |
| |
 | Tabun | 77-81-6 | [10] | [10] |  |  |  |  |  |
| Tebuthiuron | 34014-18-1 |  |  |  | [313] |  |  |  |
 | Tellurium hexafluoride | 7783-80-4 | [100] | [100] |  |  |  |  |  |
| Temephos | 3383-96-8 |  |  |  | [313] |  |  |  |
 | TEPP | 107-49-3 | [100] | [10] | [10] |  | [P111] |  |  |
| Terbacil | 5902-51-2 |  |  |  | [313] |  |  |  |
 | Terbufos | 13071-79-9 | [100] | [100] |  |  |  |  |  |
| tert-Amyl acetate | 625-16-1 |  |  | [5,000] |  |  |  |  |
 | tert-Butyl acetate | 540-88-5 |  |  | [5,000] |  |  |  |  |
| tert-Butyl alcohol | 75-65-0 |  |  |  | [313] |  |  |  |
 | tert-Butylamine | 75-64-9 |  |  | [1,000] |  |  |  |  |
| Tetrabromobisphenol A | 79-94-7 |  |  |  | [313] |  |  |  |
 | Tetrachloroethylene | 127-18-4 |  |  | [100] | [313] | [U210] |  |  |
| Tetrachlorvinphos | 961-11-5 |  |  |  | [313] |  |  |  |
 | Tetracycline hydrochloride | 64-75-5 |  |  |  | [313] |  |  |  |
| Tetraethyl lead | 78-00-2 | [100] | [10] | [10] | [313c] | [P110] |  |  |
 | Tetraethyl pyrophosphate | 107-49-3 | [100] | [10] | [10] |  | [P111] |  |  |
| Tetraethyldithiopyrophosphate | 3689-24-5 | [500] | [100] | [100] |  | [P109] |  |  |
 | Tetraethyltin | 597-64-8 | [100] | [100] |  |  |  |  |  |
| Tetrafluoroethylene | 116-14-3 |  |  |  | [313] |  | [10,000] |  |
 | Tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione | 533-74-4 |  |  |  | [X] |  |  |  |
| Tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione, ion(1-), sodium | 53404-60-7 |  |  |  | [X] |  |  |  |
 | Tetrahydro-5,5-dimethyl-2(1H)-pyrimidinone(3-(4-(trifluoromethyl)phenyl)-1-(2-(4-(trifluoromethyl)phenyl)ethenyl)-2-propenylidene)hydrazone | 67485-29-4 |  |  |  | [X] |  |  |  |
| Tetramethrin | 7696-12-0 |  |  |  | [313] |  |  |  |
 | Tetramethyllead | 75-74-1 | [100] | [100] |  | [313c] |  | [10,000] |  |
| Tetramethylsilane | 75-76-3 |  |  |  |  |  | [10,000] |  |
 | Tetranitromethane | 509-14-8 | [500] | [10] | [10] | [313] | [P112] | [10,000] |  |
| Thallic oxide | 1314-32-5 |  |  | [100] | [313c] | [P113] |  |  |
 | Thallium | 7440-28-0 |  |  | [1,000] | [313] |  |  |  |
| Thallium chloride TlCl | 7791-12-0 | [100/10,000] | [100] | [100] | [313c] | [U216] |  |  |
 | Thallium Compounds | 1-1-1 |  |  | [&] | [313] |  |  |  |
| Thallium sulfate | 10031-59-1 | [100/10,000] | [100] | [100] | [313c] |  |  |  |
 | Thallium(I) acetate | 563-68-8 |  |  | [100] | [313c] | [U214] |  |  |
| Thallium(I) carbonate | 6533-73-9 | [100/10,000] | [100] | [100] | [313c] | [U215] |  |  |
 | Thallium(I) nitrate | 10102-45-1 |  |  | [100] | [313c] | [U217] |  |  |
| Thallium(I) sulfate | 7446-18-6 | [100/10,000] | [100] | [100] | [313c] | [P115] |  |  |
 | Thallous carbonate | 6533-73-9 | [100/10,000] | [100] | [100] | [313c] | [U215] |  |  |
| Thallous chloride | 7791-12-0 | [100/10,000] | [100] | [100] | [313c] | [U216] |  |  |
 | Thallous malonate | 2757-18-8 | [100/10,000] | [100] |  |  |  |  |  |
| Thallous sulfate | 7446-18-6 | [100/10,000] | [100] | [100] | [313c] | [P115] |  |  |
 | Thiabendazole | 148-79-8 |  |  |  | [313] |  |  |  |
| Thioacetamide | 62-55-5 |  |  | [10] | [313] | [U218] |  |  |
 | Thiobencarb | 28249-77-6 |  |  |  | [313] |  |  |  |
| Thiocarbazide | 2231-57-4 | [1,000/10,000] | [1,000] |  |  |  |  |  |
 | Thiocyanic acid, methyl ester | 556-64-9 | [10,000] | [10,000] |  |  |  | [20,000] |  |
| Thiodicarb | 59669-26-0 |  |  | [100] | [313] | [U410] |  |  |
 | Thiofanox | 39196-18-4 | [100/10,000] | [100] | [100] |  | [P045] |  |  |
| Thiomethanol | 74-93-1 | [500] | [100] | [100] | [X] | [U153] | [10,000] |  |
 | Thionazin | 297-97-2 | [500] | [100] | [100] |  | [P040] |  |  |
| Thiophanate-methyl | 23564-05-8 |  |  | [10] | [313] | [U409] |  |  |
 | Thiophanate ethyl | 23564-06-9 |  |  |  | [313] |  |  |  |
| Thiophenol | 108-98-5 | [500] | [100] | [100] |  | [P014] |  |  |
 | Thiosemicarbazide | 79-19-6 | [100/10,000] | [100] | [100] | [313] | [P116] |  |  |
| Thiourea | 62-56-6 |  |  | [10] | [313] | [U219] |  |  |
 | Thiourea, 1-naphthalenyl- | 86-88-4 | [500/10,000] | [100] | [100] |  | [P072] |  |  |
| Thiourea, (2-chlorophenyl)- | 5344-82-1 | [100/10,000] | [100] | [100] |  | [P026] |  |  |
 | Thiourea, (2-methylphenyl)- | 614-78-8 | [500/10,000] | [500] |  |  |  |  |  |
| Thiram | 137-26-8 |  |  | [10] | [313] | [U244] |  |  |
 | Thorium dioxide | 1314-20-1 |  |  |  | [313] |  |  |  |
| Titanium chloride (TiCl4) (T-4)- | 7550-45-0 | [100] | [1,000] | [1,000] | [X] |  | [2,500] |  |
 | Titanium tetrachloride | 7550-45-0 | [100] | [1,000] | [1,000] | [313] |  | [2,500] |  |
| Toluene | 108-88-3 |  |  | [1,000] | [313] | [U220] |  |  |
 | Toluene-2,4-diisocyanate | 584-84-9 | [500] | [100] | [100] | [313] |  | [10,000] |  |
| Toluene-2,6-diisocyanate | 91-08-7 | [100] | [100] | [100] | [313] |  | [10,000] |  |
 | Toluene diisocyanate (unspecified isomer) | 26471-62-5 |  |  | [100] | [X] | [U223] | [10,000] |  |
| Toluenediamine | 25376-45-8 |  |  | [10] | [X] | [U221] |  |  |
 | Toluenediisocyanate (mixed isomers) | 26471-62-5 |  |  | [100] | [313] | [U223] | [10,000] |  |
| Toxaphene | 8001-35-2 | [500/10,000] | [1] | [1] | [313] | [P123] |  |  |
 | trans-1,3-Dichloropropene | 10061-02-6 |  |  |  | [313] |  |  |  |
| trans-1,4-Dichloro-2-butene | 110-57-6 | [500] | [500] |  | [313] |  |  |  |
 | trans-1,4-Dichlorobutene | 110-57-6 | [500] | [500] |  | [X] |  |  |  |
| Triadimefon | 43121-43-3 |  |  |  | [313] |  |  |  |
 | Triallate | 2303-17-5 |  |  | [100] | [313] | [U389] |  |  |
| Triamiphos | 1031-47-6 | [500/10,000] | [500] |  |  |  |  |  |
 | Triaziquone | 68-76-8 |  |  |  | [313] |  |  |  |
| Triazofos | 24017-47-8 | [500] | [500] |  |  |  |  |  |
 | Tribenuron methyl | 101200-48-0 |  |  |  | [313] |  |  |  |
| Tribromomethane | 75-25-2 |  |  | [100] | [X] | [U225] |  |  |
 | Tributyltin fluoride | 1983-10-4 |  |  |  | [313] |  |  |  |
| Tributyltin methacrylate | 2155-70-6 |  |  |  | [313] |  |  |  |
 | Trichlorfon | 52-68-6 |  |  | [100] | [313] |  |  |  |
| Trichloroacetyl chloride | 76-02-8 | [500] | [500] |  | [313] |  |  |  |
 | Trichloroethylene | 79-01-6 |  |  | [100] | [313] | [U228] |  |  |
| Trichloroethylsilane | 115-21-9 | [500] | [500] |  |  |  |  |  |
 | Trichlorofluoromethane | 75-69-4 |  |  | [5,000] | [313] | [U121] |  |  |
| Trichloromethanesulfenyl chloride | 594-42-3 | [500] | [100] | [100] | [X] |  | [10,000] |  |
 | Trichloromonofluoromethane | 75-69-4 |  |  | [5,000] | [X] | [U121] |  |  |
| Trichloronate | 327-98-0 | [500] | [500] |  |  |  |  |  |
 | Trichlorophenol | 25167-82-2 |  |  | [10] | [313c] |  |  |  |
| Trichlorophenylsilane | 98-13-5 | [500] | [500] |  |  |  |  |  |
 | Trichlorosilane | 10025-78-2 |  |  |  |  |  | [10,000] |  |
| Trichloro(chloromethyl)silane | 1558-25-4 | [100] | [100] |  |  |  |  |  |
 | Trichloro(dichlorophenyl)silane | 27137-85-5 | [500] | [500] |  |  |  |  |  |
| Triclopyr triethylammonium salt | 57213-69-1 |  |  |  | [313] |  |  |  |
 | Triethanolamine dodecylbenzene sulfonate | 27323-41-7 |  |  | [1,000] |  |  |  |  |
| Triethoxysilane | 998-30-1 | [500] | [500] |  |  |  |  |  |
 | Triethylamine | 121-44-8 |  |  | [5,000] | [313] | [U404] |  |  |
| Trifluorochloroethylene | 79-38-9 |  |  |  |  |  | [10,000] |  |
 | Trifluralin | 1582-09-8 |  |  | [10] | [313] |  |  |  |
| Triforine | 26644-46-2 |  |  |  | [313] |  |  |  |
 | Trimethylamine | 75-50-3 |  |  | [100] |  |  | [10,000] |  |
| Trimethylchlorosilane | 75-77-4 | [1,000] | [1,000] |  |  |  | [10,000] |  |
 | Trimethylolpropane phosphite | 824-11-3 | [100/10,000] | [100] |  |  |  |  |  |
| Trimethyltin chloride | 1066-45-1 | [500/10,000] | [500] |  |  |  |  |  |
 | Triphenyltin chloride | 639-58-7 | [500/10,000] | [500] |  | [313] |  |  |  |
| Triphenyltin hydroxide | 76-87-9 |  |  |  | [313] |  |  |  |
 | Tris(2-chloroethyl)amine | 555-77-1 | [100] | [100] |  |  |  |  |  |
| Tris(2,3-dibromopropyl) phosphate | 126-72-7 |  |  | [10] | [313] | [U235] |  |  |
 | Tris(dimethylcarbamodithioato-S,S')iron | 14484-64-1 |  |  |  | [X] |  |  |  |
| Trypan blue | 72-57-1 |  |  | [10] | [313] | [U236] |  |  |
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