The classification list provided in this document was compiled in response to requests for information concerning classifications under federal legislation on controlled products. Please note that this is not an exhaustive list of hazardous products according to WHMIS 1988.

This classification was established by CNESST personnel to the best of their knowledge based on data obtained from scientific literature and it incorporates the criteria contained in the Controlled Products Regulations (SOR/88-66). It does not replace the supplier’s classification which can be found on its Material Safety Data Sheet.

Since the list contains many product names (3275), it is arranged alphabetically, according to the first letter of the name. Click on the letters below to access the product. The classification under the Controlled Products Regulations (SOR/88-66) will be displayed until the end of the transition period on December 1, 2018.

Useful tip: To use the WHMIS product list in a spreadsheet, download the text file containing the WHMIS classification.

View full list (PDF, 769 kb).

Substances débutant par la lettre P affichées

Palladium dinitrate

CAS number : 10102-05-3

Palladium(II) chloride

CAS number : 7647-10-1

Palm kernel oil

CAS number : 8023-79-8

Palm oil

CAS number : 8002-75-3

Pancreatin

CAS number : 8049-47-6

para-Chlorostyrene

CAS number : 1073-67-2

Paraffin

CAS number : 8002-74-2

Peanut oil

CAS number : 8002-03-7

Pectin

CAS number : 9000-69-5

Pelargonic acid

CAS number : 112-05-0

Peloram

CAS number : 1918-02-1

Pentaborane

CAS number : 19624-22-7

UN number : UN1380

PENTABROMODIPHENYL ETHER

CAS number : 32534-81-9

Pentachloroethane

CAS number : 76-01-7

UN number : UN1669

Pentachlorofluoroethane

CAS number : 354-56-3

Pentachlorophenol

CAS number : 87-86-5

UN number : UN3155

Pentachlorothiophenol

CAS number : 133-49-3

Pentadecane

CAS number : 629-62-9

Pentaerythritol

CAS number : 115-77-5

2',3',4',5',6'-Pentafluoroacetophenone

CAS number : 652-29-9

Pentafluoroethane

CAS number : 354-33-6

Pentamidine isethionate

CAS number : 140-64-7

Normal pentane

CAS number : 109-66-0

UN number : UN1265

2,3-Pentanedione

CAS number : 600-14-6

2-Pentanol

CAS number : 6032-29-7

UN number : UN1105

Pentasulfide antimony

CAS number : 1315-04-4

Pentetic acid

CAS number : 67-43-6

1-Pentylamine

CAS number : 110-58-7

UN number : UN1106

p-tert-Pentylphenol

CAS number : 80-46-6

Perchloric acid

CAS number : 7601-90-3

Perchloric acid 1.0%

UN number : UN1802

Perchloric acid 60%

UN number : UN1873

Perchloric acid 70-72%

UN number : UN1873

Perchlorobutadiene

CAS number : 87-68-3

UN number : UN2279

Perchloromethyl mercaptan

CAS number : 594-42-3

UN number : UN1670

Perchloryl fluoride

CAS number : 7616-94-6

UN number : UN3083

Perfluorocyclobutane

CAS number : 115-25-3

UN number : UN1976

Perfluoroisobutylene

CAS number : 382-21-8

Perfluorotributylamine

CAS number : 311-89-7

Perilla alcohol

CAS number : 536-59-4

Perilla oil

CAS number : 68132-21-8

Periodic acid

CAS number : 10450-60-9

Periodic acid 1%

Perlite ore

CAS number : 130885-09-5

Peroxyacetic acid

CAS number : 79-21-0

Perylene

CAS number : 198-55-0

Petrolatum

CAS number : 8009-03-8

Petroleum (crude oil)

CAS number : 8002-05-9

Petroleum (liquefied gas)

CAS number : 68476-85-7

UN number : UN1075

Phenacetin

CAS number : 62-44-2

Phenacyl chloride

CAS number : 532-27-4

UN number : UN1697

Phenanthrene

CAS number : 85-01-8

Phenethyl acetate

CAS number : 103-45-7

Phenethyl alcohol

CAS number : 60-12-8

p-Phenetidin

CAS number : 156-43-4

UN number : UN2311

o-Phenetidine

CAS number : 94-70-2

UN number : UN2311

Phenidone

CAS number : 92-43-3

Phenol

CAS number : 108-95-2

UN number : UN1671

Phenolsulfonic acid liquid

CAS number : 1333-39-7

Phenothiazine

CAS number : 92-84-2

2-Phenoxyethanol

CAS number : 122-99-6

Phenyl acetate

CAS number : 122-79-2

Phenyl allyl ether

CAS number : 1746-13-0

Phenyl chloroformate

CAS number : 1885-14-9

UN number : UN2746

N-Phenyl diethanolamine

CAS number : 120-07-0

Phenyl diselenide

CAS number : 1666-13-3

N-Phenyl ethanolamine

CAS number : 122-98-5

Phenyl glycidyl ether

CAS number : 122-60-1

Phenyl isocyanate

CAS number : 103-71-9

UN number : UN2487

Phenyl mercaptan

CAS number : 108-98-5

UN number : UN2337

Phenyl methyl ketone

CAS number : 98-86-2

Phenyl phosphorus dichloride

CAS number : 644-97-3

UN number : UN2798

Phenyl phosphorus thiodichloride

CAS number : 3497-00-5

UN number : UN2799

Phenyl sulfide

CAS number : 139-66-2

1-Phenyl-2-hydroxy-2-methylpropan-1-one

CAS number : 7473-98-5

1-Phenyl-2-thiourea

CAS number : 103-85-5

Phenylacetonitrile

CAS number : 140-29-4

UN number : UN2470

d-Phenylanine

CAS number : 673-06-3

Phenylcarbylamine chloride

CAS number : 622-44-6

UN number : UN1672

o-Phenylenediamine

CAS number : 95-54-5

UN number : UN1673

p-Phenylenediamine, N,N,N',N',tetramethyl-, dihydrochloride

CAS number : 637-01-4

Phenylhydrazine

CAS number : 100-63-0

UN number : UN2572

Phenyllithium

CAS number : 591-51-5

Phenylmercuric acetate

CAS number : 62-38-4

UN number : UN1674

Phenylmercuric hydroxide

CAS number : 100-57-2

UN number : UN1894

Phenylmercuric nitrate

CAS number : 55-68-5

UN number : UN1895

Phenylmercury propionate

CAS number : 103-27-5

o-Phenylphenol

CAS number : 90-43-7

Phenylphosphine

CAS number : 638-21-1

Phenyltrichlorosilane

CAS number : 98-13-5

UN number : UN1804

Phloroglucinol

CAS number : 108-73-6

Phosgene

CAS number : 75-44-5

UN number : UN1076

Phosphine

CAS number : 7803-51-2

UN number : UN2199

Phosphonic acid

CAS number : 13598-36-2

UN number : UN2834

Phosphoric acid

CAS number : 7664-38-2

UN number : UN1805

Phosphoric acid 35%

UN number : UN1805

Phosphoric acid 85 % or less

UN number : UN1805

Phosphoric acid, bis(2-ethylhexyl)ester, sodium salt

CAS number : 141-65-1

Phosphoric acid, monosodium monoammonium salt, tetrahydrate

Phosphorus oxybromide

CAS number : 7789-59-5

UN number : UN1939

Phosphorus oxychloride

CAS number : 10025-87-3

UN number : UN1810

Phosphorus pentabromide

CAS number : 7789-69-7

UN number : UN2691

Phosphorus pentachloride

CAS number : 10026-13-8

UN number : UN1806

Phosphorus pentafluoride

CAS number : 7647-19-0

UN number : UN2198

Phosphorus pentasulfide

CAS number : 1314-80-3

UN number : UN1340

Phosphorus pentoxide

CAS number : 1314-56-3

UN number : UN1807

Phosphorus tribromide

CAS number : 7789-60-8

UN number : UN1808

Phosphorus trichloride

CAS number : 7719-12-2

UN number : UN1809

Phosphorus trifluoride

CAS number : 7783-55-3

Phosphorus trioxide

CAS number : 1314-24-5

UN number : UN2578

Phosphotungstic acid

CAS number : 12067-99-1

o-Phthalaldehyde

CAS number : 643-79-8

Phthalic acid

CAS number : 88-99-3

Phthalic anhydride

CAS number : 85-44-9

UN number : UN2214

o-Picoline

CAS number : 109-06-8

UN number : UN2313

Picoline-4

CAS number : 108-89-4

UN number : UN2313

Picramic acid

CAS number : 96-91-3

Picric acid

CAS number : 88-89-1

UN number : UN0154

Pilocarpine subnitrate

CAS number : 148-72-1

Pinacol

CAS number : 76-09-5

Pine oil

CAS number : 8002-09-3

UN number : UN1272

Pine tar oil

2-Pinene

CAS number : 80-56-8

UN number : UN2368

1-Piperazine ethanamine

CAS number : 140-31-8

UN number : UN2815

Pivaloyl chloride

CAS number : 3282-30-2

UN number : UN2438

Plaster of paris

CAS number : 26499-65-0

Platinum

CAS number : 7440-06-4

Platinum tetrachloride

CAS number : 13454-96-1

Platinum tetrachloride pentahydrate

Platinum trichloride

CAS number : 25909-39-1

Platinum(II) chloride

CAS number : 10025-65-7

Platinum(II) sulfate

CAS number : 53231-91-7

Poly(oxyethylene) lauryl ether

CAS number : 9002-92-0

Poly(undecanoamide)

CAS number : 25035-04-5

Polyacrylamide

CAS number : 9003-05-8

Polybrominated biphenyls (PBB)

CAS number : 67774-32-7

Polybutene

CAS number : 9003-29-6

Polychlorinated biphenyl

CAS number : 1336-36-3

Polychlorinated biphenyl (42% Cl)

CAS number : 53469-21-9

Polychlorinated biphenyl (54% Cl)

CAS number : 11097-69-1

Polyethylene glycol coconut amide

CAS number : 61791-08-0

Polyethylene glycol decyl ether

CAS number : 26183-52-8

Polyethylene glycol dimethacrylate

CAS number : 25852-47-5

Polyethylene glycol distearate

CAS number : 9005-08-7

Polyethylene glycol monooleyl ether

CAS number : 9004-98-2

Polyethylene glycol octylphenol ether

CAS number : 9002-93-1

Polyethylene glycol octylphenyl ether

CAS number : 9036-19-5

Polyethylene glycol stearate

CAS number : 9004-99-3

Polyisobutylene

CAS number : 9003-27-4

Polymerized linseed oil

CAS number : 67746-08-1

Polyoxyethylene dilaurate

CAS number : 9005-02-1

Polyoxyethylene monolaurate

CAS number : 9004-81-3

Polyoxyethylene sorbitan monolaurate

CAS number : 9005-64-5

Polyoxyethylene sorbitan trioleate

CAS number : 9005-70-3

Polypropylene

CAS number : 9003-07-0

Polypropylene glycol, ethoxylated, toluenediisocyanate polymer

CAS number : 9052-50-0

Polyurethane

CAS number : 9009-54-5

Polyvinyl chloride

CAS number : 9002-86-2

Polyvinylpolypyrrolidone

CAS number : 25249-54-1

Portland cement

CAS number : 65997-15-1

Potassium

CAS number : 7440-09-7

UN number : UN2257

Potassium acetate

CAS number : 127-08-2

Potassium aluminum sulfate dodecahydrate

CAS number : 7784-24-9

Potassium antimonate

CAS number : 12208-13-8

Potassium bifluoride

CAS number : 7789-29-9

UN number : UN1811

Potassium binoxalate

CAS number : 127-95-7

Potassium bisulfate

CAS number : 7646-93-7

UN number : UN2509

Potassium bitartrate

CAS number : 868-14-4

Potassium bromate

CAS number : 7758-01-2

UN number : UN1484

Potassium bromide

CAS number : 7758-02-3

Potassium carbonate

CAS number : 584-08-7

Potassium carbonate dihydrate

CAS number : 16799-90-9

Potassium chlorate

CAS number : 3811-04-9

UN number : UN1485

Potassium chloride

CAS number : 7447-40-7

Potassium chloride 23,8%

Potassium chlorochromate

CAS number : 16037-50-6

Potassium chromate

CAS number : 7789-00-6

Potassium citrate anhydrous

CAS number : 866-84-2

Potassium citrate monohydrate

CAS number : 6100-05-6

Potassium cyanate

CAS number : 590-28-3

Potassium cyanide

CAS number : 151-50-8

UN number : UN1680

Potassium dichromate

CAS number : 7778-50-9

Potassium dihydrogen arsenate

CAS number : 7784-41-0

Potassium ferricyanide

CAS number : 13746-66-2

Potassium ferrocyanide

CAS number : 13943-58-3

Potassium ferrocyanide trihydrate

CAS number : 14459-95-1

Potassium fluoride

CAS number : 7789-23-3

UN number : UN1812

Potassium glycerophosphate

CAS number : 1319-69-3

Potassium glycerophosphate 75%

Potassium hexafluorosilicate

CAS number : 16871-90-2

UN number : UN2655

Potassium hydrogen phthalate

CAS number : 877-24-7

Potassium hydroxide

CAS number : 1310-58-3

UN number : UN1813

Potassium hydroxide 0,11%

UN number : UN1814

Potassium hydroxide 2,5%

UN number : UN1814

Potassium hydroxide 2,8%

UN number : UN1814

Potassium hydroxide 0,056% in aqueous solution

UN number : UN1814

Potassium hydroxide 0,56% in aqueous solution

UN number : UN1814

Potassium hydroxide 10%

UN number : UN1814

Potassium hydroxide 25%

UN number : UN1814

Potassium hydroxide 28%

UN number : UN1814

Potassium hydroxide 33,3%

UN number : UN1814

Potassium hydroxide 40%

UN number : UN1814

Potassium hydroxide 45%

UN number : UN1814

Potassium hydroxide 5,6% in aqueous solution

UN number : UN1814

Potassium hydroxide 50% in aqueous solution

UN number : UN1814

Potassium hypochlorite

CAS number : 7778-66-7

Potassium hypochlorite 12%

Potassium iodate

CAS number : 7758-05-6

Potassium iodide

CAS number : 7681-11-0

Potassium lactate

CAS number : 996-31-6

Potassium lactate 60%

Potassium metabisulfite

CAS number : 16731-55-8

Potassium nitrate

CAS number : 7757-79-1

UN number : UN1486

Potassium nitrite

CAS number : 7758-09-0

UN number : UN1488

Potassium oleate

CAS number : 143-18-0

Potassium oxide

CAS number : 12136-45-7

UN number : UN2033

Potassium palladium chloride

CAS number : 10025-98-6

Potassium perchlorate

CAS number : 7778-74-7

UN number : UN1489

Potassium permanganate

CAS number : 7722-64-7

UN number : UN1490

Potassium permanganate 5%

Potassium permanganate 15%

Potassium persulfate

CAS number : 7727-21-1

UN number : UN1492

Potassium phosphate dibasic

CAS number : 7758-11-4

Potassium phosphate monobasic

CAS number : 7778-77-0

Potassium phosphide

CAS number : 20770-41-6

UN number : UN2012

Potassium pyroantimonate

CAS number : 16210-51-8

Potassium pyrophosphate trihydrate

CAS number : 7790-67-2

Potassium selenate

CAS number : 7790-59-2

UN number : UN2630

Potassium sodium tartrate

CAS number : 304-59-6

Potassium stannate

CAS number : 12142-33-5

Potassium stannate trihydrate

CAS number : 20363-05-7

Potassium sulfate

CAS number : 7778-80-5

Potassium tellurite

CAS number : 7790-58-1

Potassium tetracyanonickelate(II)

CAS number : 14220-17-8

Potassium tetrafluoroborate

CAS number : 14075-53-7

Potassium thiocyanate

CAS number : 333-20-0

Potassium zinc chromate

CAS number : 11103-86-9

Precipitated silica

CAS number : 1343-98-2

l-Proline

CAS number : 147-85-3

d-Proline

CAS number : 344-25-2

Normal propane

CAS number : 74-98-6

UN number : UN1978

Propane sultone

CAS number : 1120-71-4

1-Propanethiol

CAS number : 107-03-9

Propanoic acid

CAS number : 79-09-4

UN number : UN1848

Propanol, oxybis-, dibenzoate

CAS number : 27138-31-4

Propanolamine

CAS number : 156-87-6

Propargyl alcohol

CAS number : 107-19-7

UN number : UN1986

2-Propene-1-thiol

CAS number : 870-23-5

Propiolactone

CAS number : 57-57-8

Propionaldehyde

CAS number : 123-38-6

UN number : UN1275

Propionic anhydride

CAS number : 123-62-6

UN number : UN2496

Propionitrile

CAS number : 107-12-0

UN number : UN2404

Propionyl chloride

CAS number : 79-03-8

UN number : UN1815

2-Propoxyethanol

CAS number : 2807-30-9

Normal propyl acetate

CAS number : 109-60-4

UN number : UN1276

n-Propyl alcohol

CAS number : 71-23-8

UN number : UN1274

n-Propyl bromide

CAS number : 106-94-5

n-Propyl chloroformate

CAS number : 109-61-5

UN number : UN2740

n-Propyl isocyanate

CAS number : 110-78-1

UN number : UN2482

Propyl nitrate

CAS number : 627-13-4

UN number : UN1865

Propyl propionate

CAS number : 106-36-5

Propyl trichlorosilane

CAS number : 141-57-1

UN number : UN1816

n-Propylamine

CAS number : 107-10-8

UN number : UN1277

Propylamine hydrochloride

CAS number : 556-53-6

1-Propylbenzene

CAS number : 103-65-1

UN number : UN2364

Propylene

CAS number : 115-07-1

UN number : UN1077

Propylene carbonate

CAS number : 108-32-7

sec-Propylene chlorohydrin

CAS number : 127-00-4

UN number : UN2611

Propylene chlorohydrin

CAS number : 78-89-7

Propylene glycol

CAS number : 4254-16-4

Propylene glycol

CAS number : 57-55-6

Propylene glycol dinitrate

CAS number : 6423-43-4

Propylene glycol monobutyl ether

CAS number : 5131-66-8

Propylene glycol monomethyl ether

CAS number : 107-98-2

Propylene glycol monomethyl ether acetate

CAS number : 108-65-6

Propylene oxide

CAS number : 75-56-9

UN number : UN1280

Propylene sulfide

CAS number : 1072-43-1

4-Propylguaiacol

CAS number : 2785-87-7

Providone

CAS number : 9003-39-8

Proviodine

CAS number : 25655-41-8

Pumice

CAS number : 1332-09-8

Pyrene

CAS number : 129-00-0

3-Pyridinamine

CAS number : 462-08-8

UN number : UN2671

Pyridine

CAS number : 110-86-1

UN number : UN1282

4-(Pyridyl-2-azo) resorcinol

CAS number : 13311-52-9

Pyrimidine

CAS number : 289-95-2

Pyrite

CAS number : 1309-36-0

Pyrogallic acid

CAS number : 87-66-1

Pyrrhotite

CAS number : 12305-96-3

Pyruvic acid

CAS number : 127-17-3