112(r) Regulated Toxic Substances
|
Chemical Name
|
CAS #
|
Threshold
Quantity (lbs)
|
Basis for Listing
|
|
Acrolein [2-Propenal]
|
107-02-8
|
5,000
|
b
|
|
Acrylonitrile [2-Propenenitrile]
|
107-13-1
|
20,000
|
b
|
|
Acrylyl chloride [2-Propenoyl chloride]
|
814-68-6
|
5,000
|
b
|
|
Allyl alcohol [2-Propen-1-ol]
|
107-18-6
|
15,000
|
b
|
|
Allylamine [2-Propen-1-amine]
|
107-11-9
|
10,000
|
b
|
|
Ammonia (anhydrous)
|
7664-41-7
|
10,000
|
a, b
|
|
Ammonia (conc 20% or greater)
|
7664-41-7
|
20,000
|
a, b
|
|
Arsenous trichloride
|
7784-34-1
|
15,000
|
b
|
|
Arsine
|
7784-42-1
|
1,000
|
b
|
|
Boron trichloride [Borane, trichloro-]
|
10294-34-5
|
5,000
|
b
|
|
Boron trifluoride [Borane, trifluoro-]
|
7637-07-2
|
5,000
|
b
|
|
Boron trifluoride compound with methyl ether (1:1) [Boron, trifluoro[oxybis[metane]]-,
T-4-
|
353-42-4
|
15,000
|
b
|
|
Bromine
|
7726-95-6
|
10,000
|
a, b
|
|
Carbon disulfide
|
75-15-0
|
20,000
|
b
|
|
Chlorine
|
7782-50-5
|
2,500
|
a, b
|
|
Chlorine dioxide [Chlorine oxide (ClO2)]
|
10049-04-4
|
1,000
|
c
|
|
Chloroform [Methane, trichloro-]
|
67-66-3
|
20,000
|
b
|
|
Chloromethyl ether [Methane, oxybis[chloro-]
|
542-88-1
|
1,000
|
b
|
|
Chloromethyl methyl ether [Methane, chloromethoxy-]
|
107-30-2
|
5,000
|
b
|
|
Crotonaldehyde [2-Butenal]
|
4170-30-3
|
20,000
|
b
|
|
Crotonaldehyde, (E)- [2-Butenal, (E)-]
|
123-73-9
|
20,000
|
b
|
|
Cyanogen chloride
|
506-77-4
|
10,000
|
c
|
|
Cyclohexylamine [Cyclohexanamine]
|
108-91-8
|
15,000
|
b
|
|
Diborane
|
19287-45-7
|
2,500
|
b
|
|
Dimethyldichlorosilane [Silane, dichlorodimethyl-]
|
75-78-5
|
5,000
|
b
|
|
1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-]
|
57-14-7
|
15,000
|
b
|
|
Epichlorohydrin [Oxirane, (chloromethyl)-]
|
106-89-8
|
20,000
|
b
|
|
Ethylenediamine [1,2-Ethanediamine]
|
107-15-3
|
20,000
|
b
|
|
Ethyleneimine [Aziridine]
|
151-56-4
|
10,000
|
b
|
|
Ethylene oxide [Oxirane]
|
75-21-8
|
10,000
|
a, b
|
|
Fluorine
|
7782-41-4
|
1,000
|
b
|
|
Formaldehyde (solution)
|
50-00-0
|
15,000
|
b
|
|
Furan
|
110-00-9
|
5,000
|
b
|
|
Hydrazine
|
302-01-2
|
15,000
|
b
|
|
Hydrochloric acid (conc 37% or greater)
|
7647-01-0
|
15,000
|
d
|
|
Hydrocyanic acid
|
74-90-8
|
2,500
|
a, b
|
|
Hydrogen chloride (anhydrous) [Hydrochloric acid]
|
7647-01-0
|
5,000
|
a
|
|
Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) [Hydrofluoric acid]
|
7664-39-3
|
1,000
|
a, b
|
|
Hydrogen selenide
|
7783-07-5
|
500
|
b
|
|
Hydrogen sulfide
|
7783-06-4
|
10,000
|
a, b
|
|
Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-]
|
13463-40-6
|
2,500
|
b
|
|
Isobutyronitrile [Propanenitrile, 2-methyl-]
|
78-82-0
|
20,000
|
b
|
|
Isopropyl chloroformate [Carbonochloridic acid, 1-methylethyl ester]
|
108-23-6
|
15,000
|
b
|
|
Methacrylonitrile [2-Propenenitrile, 2-methyl-]
|
126-98-7
|
10,000
|
b
|
|
Methyl chloride [Methane, chloro-]
|
74-87-3
|
10,000
|
a
|
|
Methyl chloroformate [Carbonochloridic acid, methylester]
|
79-22-1
|
5,000
|
b
|
|
Methyl hydrazine [Hydrazine, methyl-]
|
60-34-4
|
15,000
|
b
|
|
Methyl isocyanate [Methane, isocyanato-]
|
624-83-9
|
10,000
|
a, b
|
|
Methyl mercaptan [Methanethiol]
|
74-93-1
|
10,000
|
b
|
|
Methyl thiocyanate [Thiocyanic acid, methyl ester]
|
556-64-9
|
20,000
|
b
|
|
Methyltrichlorosilane [Silane, trichloromethyl-]
|
75-79-6
|
5,000
|
b
|
|
Nickel carbonyl
|
13463-39-3
|
1,000
|
b
|
|
Nitric acid (conc 80% or greater)
|
7697-37-2
|
15,000
|
b
|
|
Nitric oxide [Nitrogen oxide (NO)]
|
10102-43-9
|
10,000
|
b
|
|
Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide]1
|
8014-95-7
|
10,000
|
e
|
|
Peracetic acid [Ethaneperoxoic acid]
|
79-21-0
|
10,000
|
b
|
|
Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-]
|
594-42-3
|
10,000
|
b
|
|
Phosgene [Carbonic dichloride]
|
75-44-5
|
500
|
a, b
|
|
Phosphine
|
7803-51-2
|
5,000
|
b
|
|
Phosphorus oxychloride [Phosphoryl chloride]
|
10025-87-3
|
5,000
|
b
|
|
Phosphorus trichloride [Phosphorous trichloride]
|
7719-12-2
|
15,000
|
b
|
|
Piperidine
|
110-89-4
|
15,000
|
b
|
|
Propionitrile [Propanenitrile]
|
107-12-0
|
10,000
|
b
|
|
Propyl chloroformate [Carbonochloridic acid, propylester]
|
109-61-5
|
15,000
|
b
|
|
Propyleneimine [Aziridine, 2-methyl-]
|
75-55-8
|
10,000
|
b
|
|
Propylene oxide [Oxirane, methyl-]
|
75-56-9
|
10,000
|
b
|
|
Sulfur dioxide (anhydrous)
|
7446-09-5
|
5,000
|
a, b
|
|
Sulfur tetrafluoride [Sulfur fluoride (SF4), (T-4)-]
|
7783-60-0
|
2,500
|
b
|
|
Sulfur trioxide
|
7446-11-9
|
10,000
|
a, b
|
|
Tetramethyllead [Plumbane, tetramethyl-]
|
75-74-1
|
10,000
|
b
|
|
Tetranitromethane [Methane, tetranitro-]
|
509-14-8
|
10,000
|
b
|
|
Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-]
|
7550-45-0
|
2,500
|
b
|
|
Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-]1
|
584-84-9
|
10,000
|
a
|
|
Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-]1
|
91-08-7
|
10,000
|
a
|
|
Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-]1
|
26471-62-5
|
10,000
|
a
|
|
Trimethylchlorosilane [Silane, chlorotrimethyl-]
|
75-77-4
|
10,000
|
b
|
|
Vinyl acetate monomer [Acetic acid ethenyl ester]
|
108-05-4
|
15,000
|
b
|
Basis for Listing:
- Mandated for listing by Congress
- On EHS list, vapor pressure 10 mmHg or greater
- Toxic gas
- Toxicity of hydrogen chloride, potential to release hydrogen chloride, & history
of accidents
- Toxicity of sulfur trioxide and sulfuric acid, potential to release sulfur trioxide,
& history of accidents
- Flammable gas
- Volatile flammable liquid
1 The mixture exemption in 40 CFR 68.115(b)(1) does not
apply to the substance.