Cal. Code Regs. Tit. 8, 5189 app A to Section 5189 - List of Acutely Hazardous Chemicals, Toxics and Reactives (Mandatory)

Current through Register 2022 Notice Reg. No. 16, April 25, 2022

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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Notes

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.