Understanding the Risk Management Plan (RMP) Requirements
List of Regulated Flammable Gases and Volatile Flammable Liquids2

Contributed by Barry Solomon, ChemAlliance Staff

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Chemical Name

CAS Number

Acetaldehyde

75-07-0

Acetylene (Ethyne)

74-86-2

Bromotrifluorethylene (Ethene, bromotrifluoro - )

598-73-2

1,3 - Butadiene

106-99-0

Butane

106-97-8

1-Butene

106-98-9

2-Butene

107-01-7

Butene

25167-67-3

2-Butene-cis

590-18-1

2-Butene-trans (2-Butene, (E) )

624-64-6

Carbon oxysulfide (Carbon oxide sulfide (COS))

463-58-1

Chlorine monoxide (Chlorine oxide)

7791-21-1

2-Chloropropylene (1-Propene, 2-chloro - )

557-98-2

1-Chloropropylene (1-Propene, 1-chloro - )

590-21-6

Cyanogen (Ethanedinitrile)

460-19-5

Cyclopropane

75-19-4

Dichlorosilane (Silane, dichloro - )

4109-96-0

Difluoroethane (Ethane, 1,1-difluoro - )

75-37-6

Dimethylamine (Methanamine, N-methyl - )

124-40-3

2,2-Dimethylpropane (Propane, 2,2-dimethyl - )

463-82-1

Ethane

74-84-0

Ethyl acetylene (1-Butyne)

107-00-6

Ethylamine (Ethanamine)

75-04-7

Ethyl chloride (Ethane, chloro - )

75-00-3

Ethylene (Ethene)

74-85-1

Ethyl ether (Ethane, 1-1'-oxybis - )

60-29-7

Ethyl mercaptan (Ethanethiol)

75-08-1

Ethyl nitrite (Nitrous acid, ethyl ester)

109-95-5

Hydrogen

1333-74-0

Isobutane (Propane, 2-methyl)

75-28-5

Isopentane (Butane, 2-methyl - )

78-78-4

Isoprene (1,3-Butadiene, 2-methyl - )

78-79-5

Isopropylamine (2-Propanamine)

75-31-0

Isopropyl chloride (Propane, 2-chloro - )

75-29-6

Methane

74-82-8

Methylamine (Methanamine)

74-89-5

3-Methyl-1-butene

563-45-1

2-Methyl-1-butene

563-46-2

Methyl ether (Methane, oxybis - )

115-10-6

Methyl formate (Formic acid, methyl ester)

107-31-3

2-Methylpropene (1-Propene, 2-methyl - )

115-11-7

1,3-Pentadiene

504-60-9

Pentane

109-66-0

1-Pentene

109-67-1

2-Pentene, (E) -

646-04-8

2-Pentene, (Z) -

627-20-3

Propadiene (1,2-Propadiene)

463-49-0

Propane

74-98-6

Propylene (1-Propene)

115-07-1

Propyne (1-Propyne)

74-99-7

Silane

7803-62-5

Tetrafluoroethylene (Ethene, tetrafluoro - )

116-14-3

Tetramethylsilane (Silane, tetramethyl - )

75-76-3

Trichlorosilane (Silane, trichloro - )

10025-78-2

Trifluorochloroethylene (Ethene, chlorotrifluoro - )

79-38-9

Trimethlyamine (Methanamine, N,N-dimethyl - )

75-50-3

Vinyl acetylene (1-Buten-3-yne)

689-97-4

Vinyl chloride (Ethene, chloro - )

75-01-4

Vinyl ethyl ether (Ethene, ethoxy - )

109-92-2

Vinyl fluoride (Ethene, fluoro - )

75-02-5

Vinylidene chloride (Ethene, 1,1-dichloro - )

75-35-4

Vinylidene fluoride (Ethene, 1,1-difluoro - )

75-38-7

Vinyl methyl ether (Ethene, methoxy - )

107-25-5

2 The threshold quantity for accidental release prevention is 10,000 pounds in all cases.

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