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324 

49 CFR Ch. I (10–1–18 Edition) 

§ 172.101 

T

ABLE

TO

A

PPENDIX

A—H

AZARDOUS

S

UBSTANCES

O

THER

T

HAN

R

ADIONUCLIDES

—Continued 

Hazardous substance 

Reportable 

quantity (RQ) 

pounds 

(kilograms) 

Nitric oxide .................................................................................................................................................................

10 (4.54) 

p-Nitroaniline .............................................................................................................................................................

5000 (2270) 

Nitrobenzene .............................................................................................................................................................

1000 (454) 

4-Nitrobiphenyl ..........................................................................................................................................................

10 (4.54) 

Nitrogen dioxide ........................................................................................................................................................

10 (4.54) 

Nitrogen oxide NO .....................................................................................................................................................

10 (4.54) 

Nitrogen oxide NO

2

...................................................................................................................................................

10 (4.54) 

Nitroglycerine .............................................................................................................................................................

10 (4.54) 

Nitrophenol (mixed) ...................................................................................................................................................

100 (45.4) 

m-Nitrophenol.

o-Nitrophenol .............................................................................................................................................................

100 (45.4) 

p-Nitrophenol .............................................................................................................................................................

100 (45.4) 

2-Nitrophenol .............................................................................................................................................................

100 (45.4) 

4-Nitrophenol .............................................................................................................................................................

100 (45.4) 

2-Nitropropane ...........................................................................................................................................................

10 (4.54) 

N-Nitrosodi-n-butylamine ...........................................................................................................................................

10 (4.54) 

N-Nitrosodiethanolamine ...........................................................................................................................................

1 (0.454) 

N-Nitrosodiethylamine ...............................................................................................................................................

1 (0.454) 

N-Nitrosodimethylamine ............................................................................................................................................

10 (4.54) 

N-Nitrosodiphenylamine ............................................................................................................................................

100 (45.4) 

N-Nitroso-N-ethylurea ................................................................................................................................................

1 (0.454) 

N-Nitroso-N-methylurea .............................................................................................................................................

1 (0.454) 

N-Nitroso-N-methylurethane ......................................................................................................................................

1 (0.454) 

N-Nitrosomethylvinylamine ........................................................................................................................................

10 (4.54) 

N-Nitrosomorpholine ..................................................................................................................................................

1 (0.454) 

N-Nitrosopiperidine ....................................................................................................................................................

10 (4.54) 

N-Nitrosopyrrolidine ...................................................................................................................................................

1 (0.454) 

Nitrotoluene ...............................................................................................................................................................

1000 (454) 

m-Nitrotoluene.
o-Nitrotoluene.
p-Nitrotoluene.

5-Nitro-o-toluidine ......................................................................................................................................................

100 (45.4) 

Octamethylpyrophosphoramide .................................................................................................................................

100 (45.4) 

Osmium oxide OsO

4

, (T-4)- ......................................................................................................................................

1000 (454) 

Osmium tetroxide ......................................................................................................................................................

1000 (454) 

7-Oxabicyclo[2.2.1]heptane-2,3-dicarboxylic acid .....................................................................................................

1000 (454) 

Oxamyl ......................................................................................................................................................................

100 (45.4) 

1,2-Oxathiolane, 2,2-dioxide .....................................................................................................................................

10 (4.54) 

2H-1,3,2-Oxazaphosphorin-2-amine, N,N-bis(2-chloroethyl) tetrahydro-, 2-oxide ....................................................

10 (4.54) 

Oxirane ......................................................................................................................................................................

10 (4.54) 

Oxiranecarboxyaldehyde ...........................................................................................................................................

10 (4.54) 

Oxirane, (chloromethyl)- ............................................................................................................................................

100 (45.4) 

Paraformaldehyde .....................................................................................................................................................

1000 (454) 

Paraldehyde ..............................................................................................................................................................

1000 (454) 

Parathion ...................................................................................................................................................................

10 (4.54) 

PCBs .........................................................................................................................................................................

1 (0.454) 

PCNB .........................................................................................................................................................................

100 (45.4) 

Pentachlorobenzene ..................................................................................................................................................

10 (4.54) 

Pentachloroethane ....................................................................................................................................................

10 (4.54) 

Pentachloronitrobenzene ...........................................................................................................................................

100 (45.4) 

Pentachlorophenol .....................................................................................................................................................

10 (4.54) 

1,3-Pentadiene ..........................................................................................................................................................

100 (45.4) 

Perchloroethylene ......................................................................................................................................................

100 (45.4) 

Perchloromethyl mercaptan

@

...................................................................................................................................

100 (45.4) 

Phenacetin .................................................................................................................................................................

100 (45.4) 

Phenanthrene ............................................................................................................................................................

5000 (2270) 

Phenol .......................................................................................................................................................................

1000 (454) 

Phenol, 2-chloro- .......................................................................................................................................................

100 (45.4) 

Phenol, 4-chloro-3-methyl- ........................................................................................................................................

5000 (2270) 

Phenol, 2-cyclohexyl-4,6-dinitro- ...............................................................................................................................

100 (45.4) 

Phenol, 2,4-dichloro- .................................................................................................................................................

100 (45.4) 

Phenol, 2,6-dichloro- .................................................................................................................................................

100 (45.4) 

Phenol, 4,4

′-(1,2-diethyl-1,2-ethenediyl)bis-, (E) .......................................................................................................

1 (0.454) 

Phenol, 2,4-dimethyl- ................................................................................................................................................

100 (45.4) 

Phenol, 4-(dimethylamino)-3,5-dimethyl-, methylcarbamate (ester) .........................................................................

1000 (454) 

Phenol, (3,5-dimethyl-4-(methylthio)-, methylcarbamate ..........................................................................................

10 (4.54) 

Phenol, 2,4-dinitro- ....................................................................................................................................................

10 (4.54) 

Phenol, methyl- .........................................................................................................................................................

100 (45.4) 

Phenol, 2-methyl-4,6-dinitro-, & salts ........................................................................................................................

10 (4.54) 

Phenol, 2,2

′-methylenebis[3,4,6-trichloro- .................................................................................................................

100 (45.4) 

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