Cal. Code Regs. tit. 8 § 5189 app. A to Section 5189

Current through Register 2021 Notice Reg. No. 47, November 19, 2021
Appendix A to Section 5189 - List of Acutely Hazardous Chemicals, Toxics and Reactives (Mandatory)

This Appendix contains a listing of substances which present a potential for a catastrophic event at or above the threshold quantity (TQ).

CHEMICAL name

CAS *

TQ **

Acetaldehyde.

75-07-0

2500

Acrolein (2-Propenal).

107-02-8

150

Acrylyl Chloride.

814-68-6

250

Allyl Chloride.

107-05-1

1000

Allylamine.

107-11-9

1000

Alkylaluminums.

Varies

5000

Ammonia, Anhydrous.

7664-41-7

10000

Ammonia solutions (> 44% ammonia by weight.

7664-41-7

15000

Ammonium Perchlorate.

7790-98-9

7500

Ammonium Permanganate.

7787-36-2

7500

Arsine (also called Arsenic Hydride).

7784-42-1

100

Bis(Chloromethyl) Ether.

542-88-1

100

Boron Trichloride.

10294-34-5

2500

Boron Trifluoride.

7637-07-2

250

Bromine.

7726-95-6

1500

Bromine Chloride.

13863-41-7

1500

Bromine Pentafluoride.

7789-30-2

2500

Bromine Trifluoride.

7787-71-5

15000

3-Bromopropyne (also called Propargyl Bromide).

106-96-7

100

Butyl Hydroperoxide (Tertiary).

75-91-2

5000

Butyl Perbenzoate (Tertiary).

614-45-9

7500

Carbonyl Chloride (see Phosgene).

75-44-5

100

Carbonyl Fluoride Cellulose Nitrate (concentration > 12.6% nitrogen).

9004-70-0

2500

Chlorine.

7782-50-5

1500

Chlorine Dioxide.

10049-04-4

1000

Chlorine Pentrafluoride.

13637-63-3

1000

Chlorine Trifluoride.

7790-91-2

1000

Chlorodiethylaluminum (also called Diethylaluminum Chloride).

96-10-6

5000

1-Chloro-2,4-Dinitrobenzene.

97-00-7

5000

Chloromethyl Methyl Ether.

107-30-2

500

Chloropicrin.

76-06-2

500

Chloropicrin and Methyl Bromide mixture.

None

1500

Chloropicrin and Methyl Chloride mixture.

None

1500

Cumene Hydroperoxide.

80-15-9

5000

Cyanogen.

460-19-5

2500

Cyanogen Chloride.

506-77-4

500

Cyanuric Fluoride.

675-14-9

100

Diacetyl Peroxide (Concentration > 70%).

110-22-5

5000

Diazomethane.

334-88-3

500

Dibenzoyl Peroxide.

94-36-0

7500

Diborane.

19287-45-7

100

Dibutyl Peroxide (Tertiary).

110-05-4

5000

Dichloro Acetylene.

7572-29-4

250

Dichlorosilane.

4109-96-0

2500

Diethylzinc.

557-20-0

10000

Diisopropyl Peroxydicarbonate.

105-64-6

7500

Dilaluroyl Peroxide.

105-74-8

7500

Dimethyldichlorosilane.

75-78-5

1000

Dimethylhydrazine, 1,1-.

57-14-7

1000

Dimethylamine, Anhydrous.

124-40-3

2500

2,4-Dinitroaniline.

97-02-9

5000

Ethyl Methyl Ketone Peroxide (also

Methyl Ethyl Ketone Peroxide;

concentration > 60%).

1338-23-4

5000

Ethyl Nitrite.

109-95-5

5000

Ethylamine.

75-04-7

7500

Ethylene Fluorohydrin.

371-62-0

100

Ethylene Oxide.

75-21-8

5000

Ethyleneimine.

151-56-4

1000

Fluorine.

7782-41-4

1000

Formaldehyde (Formalin).

50-00-0

1000

Furan.

110-00-9

500

Hexafluoroacetone.

684-16-2

5000

Hydrochloric Acid, Anhydrous.

7647-01-0

500

Hydrofluoric Acid, Anhydrous.

7664-39-3

1000

Hydrogen Bromide.

10035-10-6

5000

Hydrogen Chloride.

7647-01-0

5000

Hydrogen Cyanide, Anhydrous.

74-90-8

1000

Hydrogen Fluoride.

7664-39-3

1000

Hydrogen Peroxide (52% by weight

or greater.

7722-84-1

7500

Hydrogen Selenide.

7783-07-5

150

Hydrogen Sulfide.

7783-06-4

1500

Hydroxylamine.

7803-49-8

2500

Iron, Pentacarbonyl.

13463-40-6

250

Isopropylamine.

75-31-0

5000

Ketene.

463-51-4

100

Methacrylaldehyde.

78-85-3

1000

Methacryloyl Chloride.

920-46-7

150

Methacryloyloxyethyl Isocyanate.

30674-80-7

100

Methyl Acrylonitrile.

126-98-7

250

Methylamine, Anhydrous.

74-89-5

1000

Methyl Bromide.

74-83-9

2500

Methyl Chloride.

74-87-3

15000

Methyl Chloroformate.

79-22-1

500

Methyl Ethyl Ketone Peroxide

(concentration > 60%).

1338-23-4

5000

Methyl Fluoroacetate.

453-18-9

100

Methyl Fluorosulfate.

421-20-5

100

Methyl Hydrazine.

60-34-4

100

Methyl Iodide.

74-88-4

7500

Methyl Isocyanate.

624-83-9

250

Methyl Mercaptan.

74-93-1

5000

Methyl Vinyl Ketone.

79-84-4

100

Methyltrichlorosilane.

75-79-6

500

Nickel Carbonly (Nickel

Tetracarbonyl).

13463-39-3

150

Nitric Acid (94.5% by weight or

greater).

7697-37-2

500

Nitric Oxide.

10102-43-9

250

Nitroaniline (para Nitroaniline.

100-01-6

5000

Nitromethane.

75-52-5

2500

Nitrogen Dioxide.

10102-44-0

250

Nitrogen Oxides (NO; NO 2; N204;

N203).

10102-44-0

250

Nitrogen Tetroxide (also called Nitro

gen Peroxide).

10544-72-6

250

Nitrogen Trifluoride.

7783-54-2

5000

Nitrogen Trioxide.

10544-73-7

250

Oleum (65% to 80% by weight; also

called Fuming Sulfuric Acid).

8014-95-7

1000

Osmium Tetroxide.

20616-12-0

100

Oxygen Difluoride (Fluorine Monox-

ide).

7783-41-7

100

Ozone.

10028-15-6

100

Pentaborane.

19624-22-7

100

Peracetic Acid (concentration > 60%

Acetic Acid; also called

Peroxyacetic Acid).

79-21-0

1000

Perchloric Acid (concentration > 60%

by weight).

7601-90-3

5000

Perchloromethyl Mercaptan.

594-42-3

150

Perchloryl Fluoride.

7616-94-6

5000

Peroxyacetic Acid (concentration >

60% Acetic Acid; also called

Peracetic Acid).

79-21-0

1000

Phosgene (also called Carbonyl

Chloride).

75-44-5

100

Phosphine (Hydrogen Phosphide).

7803-51-2

100

Phosphorus Oxychloride (also called

Phosphoryl Chloride).

10025-87-3

1000

Phosphorus Trichloride.

7719-12-2

1000

Phosphoryl Chloride (also called

Phosphorus Oxychloride).

10025-87-3

1000

Propargyl Bromide.

106-96-7

100

Propyl Nitrate.

627-3-4

2500

Sarin.

107-44-8

100

Selenium Hexafluoride.

7783-79-1

1000

Stibine (Antimony Hydride).

7803-52-3

500

Sulfur Dioxide (liquid).

7446-09-5

1000

Sulfur Pentafluoride.

5714-22-7

250

Sulfur Tetrafluoride.

7783-60-0

250

Sulfur Trioxide (also called Sulfuric

Anhydride).

7446-11-9

1000

Sulfuric Anhydride (also called Sulfur

Trioxide).

7446-11-9

1000

Tellurium Hexafluoride.

7783-80-4

250

Tetrafluoroethylene.

116-14-3

5000

Tetrafluorohydrazine.

10036-47-2

5000

Tetramethyl Lead.

75-74-1

1000

Thionyl Chloride.

7719-09-7

250

Trichloro (chloromethyl) Silane.

1558-25-4

100

Trichloro (dichlorophenyl) Silane.

27137-85-5

2500

Trichlorosilane.

10025-78-2

5000

Trifluorochloroethylene.

79-38-9

10000

Trimethyoxysilane.

2487-90-3

1500

*Chemical Abstract Service Number.

**Threshold Quantity in Pounds (Amount necessary to be covered by this standard).

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Cal. Code Regs. Tit. 8, 5189 app A to Section 5189

Note: Authority cited: Section 142.3, Labor Code. Reference: Sections 142.3 and 7856, Labor Code.