Appendix A - Appendix A to Part 68—Table of Toxic Endpoints
[As defined in § 68.22 of this part]
| CAS No. | Chemical name | Toxic endpoint (mg/L) | 107-02-8 | Acrolein [2-Propenal] | 0.0011 | 107-13-1 | Acrylonitrile [2-Propenenitrile] | 0.076 | 814-68-6 | Acrylyl chloride [2-Propenoyl chloride] | 0.00090 | 107-18-6 | Allyl alcohol [2-Propen-1-ol] | 0.036 | 107-11-9 | Allylamine [2-Propen-1-amine] | 0.0032 | 7664-41-7 | Ammonia (anhydrous) | 0.14 | 7664-41-7 | Ammonia (conc 20% or greater) | 0.14 | 7784-34-1 | Arsenous trichloride | 0.010 | 7784-42-1 | Arsine | 0.0019 | 10294-34-5 | Boron trichloride [Borane, trichloro-] | 0.010 | 7637-07-2 | Boron trifluoride [Borane, trifluoro-] | 0.028 | 353-42-4 | Boron trifluoride compound with methyl ether (1:1) [Boron, trifluoro[oxybis[methane]]-, T-4 | 0.023 | 7726-95-6 | Bromine | 0.0065 | 75-15-0 | Carbon disulfide | 0.16 | 7782-50-5 | Chlorine | 0.0087 | 10049-04-4 | Chlorine dioxide [Chlorine oxide (ClO2)] | 0.0028 | 67-66-3 | Chloroform [Methane, trichloro-] | 0.49 | 542-88-1 | Chloromethyl ether [Methane, oxybis[chloro-] | 0.00025 | 107-30-2 | Chloromethyl methyl ether [Methane, chloromethoxy-] | 0.0018 | 4170-30-3 | Crotonaldehyde [2-Butenal] | 0.029 | 123-73-9 | Crotonaldehyde, (E)-, [2-Butenal, (E)-] | 0.029 | 506-77-4 | Cyanogen chloride | 0.030 | 108-91-8 | Cyclohexylamine [Cyclohexanamine] | 0.16 | 19287-45-7 | Diborane | 0.0011 | 75-78-5 | Dimethyldichlorosilane [Silane, dichlorodimethyl-] | 0.026 | 57-14-7 | 1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-] | 0.012 | 106-89-8 | Epichlorohydrin [Oxirane, (chloromethyl)-] | 0.076 | 107-15-3 | Ethylenediamine [1,2-Ethanediamine] | 0.49 | 151-56-4 | Ethyleneimine [Aziridine] | 0.018 | 75-21-8 | Ethylene oxide [Oxirane] | 0.090 | 7782-41-4 | Fluorine | 0.0039 | 50-00-0 | Formaldehyde (solution) | 0.012 | 110-00-9 | Furan | 0.0012 | 302-01-2 | Hydrazine | 0.011 | 7647-01-0 | Hydrochloric acid (conc 37% or greater) | 0.030 | 74-90-8 | Hydrocyanic acid | 0.011 | 7647-01-0 | Hydrogen chloride (anhydrous) [Hydrochloric acid] | 0.030 | 7664-39-3 | Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) [Hydrofluoric acid] | 0.016 | 7783-07-5 | Hydrogen selenide | 0.00066 | 7783-06-4 | Hydrogen sulfide | 0.042 | 13463-40-6 | Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-] | 0.00044 | 78-82-0 | Isobutyronitrile [Propanenitrile, 2-methyl-] | 0.14 | 108-23-6 | Isopropyl chloroformate [Carbonochloride acid, 1-methylethyl ester] | 0.10 | 126-98-7 | Methacrylonitrile [2-Propenenitrile, 2-methyl-] | 0.0027 | 74-87-3 | Methyl chloride [Methane, chloro-] | 0.82 | 79-22-1 | Methyl chloroformate [Carbonochloridic acid, methylester] | 0.0019 | 60-34-4 | Methyl hydrazine [Hydrazine, methyl-] | 0.0094 | 624-83-9 | Methyl isocyanate [Methane, isocyanato-] | 0.0012 | 74-93-1 | Methyl mercaptan [Methanethiol] | 0.049 | 556-64-9 | Methyl thiocyanate [Thiocyanic acid, methyl ester] | 0.085 | 75-79-6 | Methyltrichlorosilane [Silane, trichloromethyl-] | 0.018 | 13463-39-3 | Nickel carbonyl | 0.00067 | 7697-37-2 | Nitric acid (conc 80% or greater) | 0.026 | 10102-43-9 | Nitric oxide [Nitrogen oxide (NO)] | 0.031 | 8014-95-7 | Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide] | 0.010 | 79-21-0 | Peracetic acid [Ethaneperoxoic acid] | 0.0045 | 594-42-3 | Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-] | 0.0076 | 75-44-5 | Phosgene [Carbonic dichloride] | 0.00081 | 7803-51-2 | Phosphine | 0.0035 | 10025-87-3 | Phosphorus oxychloride [Phosphoryl chloride] | 0.0030 | 7719-12-2 | Phosphorus trichloride [Phosphorous trichloride] | 0.028 | 110-89-4 | Piperidine | 0.022 | 107-12-0 | Propionitrile [Propanenitrile] | 0.0037 | 109-61-5 | Propyl chloroformate [Carbonochloridic acid, propylester] | 0.010 | 75-55-8 | Propyleneimine [Aziridine, 2-methyl-] | 0.12 | 75-56-9 | Propylene oxide [Oxirane, methyl-] | 0.59 | 7446-09-5 | Sulfur dioxide (anhydrous) | 0.0078 | 7783-60-0 | Sulfur tetrafluoride [Sulfur fluoride (SF4), (T-4)-] | 0.0092 | 7446-11-9 | Sulfur trioxide | 0.010 | 75-74-1 | Tetramethyllead [Plumbane, tetramethyl-] | 0.0040 | 509-14-8 | Tetranitromethane [Methane, tetranitro-] | 0.0040 | 7750-45-0 | Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-] | 0.020 | 584-84-9 | Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-] | 0.0070 | 91-08-7 | Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-] | 0.0070 | 26471-62-5 | Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-] | 0.0070 | 75-77-4 | Trimethylchlorosilane [Silane, chlorotrimethyl-] | 0.050 | 108-05-4 | Vinyl acetate monomer [Acetic acid ethenyl ester] | 0.26 |
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