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 T affichées

Talc (fibrous)

Talc (none asbestiform)

CAS number : 14807-96-6

Tall oil

CAS number : 8002-26-4

Tall oil, fatty acids

CAS number : 61790-12-3

Tallow

CAS number : 61789-97-7

Tallow amine ethoxylate

CAS number : 61791-26-2

Tallow oil

Tantalum

CAS number : 7440-25-7

Tantalum dioxide

CAS number : 12036-14-5

Tantalum oxide

CAS number : 1314-61-0

Tar decanter sludge

CAS number : 65996-89-6

Tartaric acid

CAS number : 133-37-9

d-Tartaric acid

CAS number : 147-71-7

l-Tartaric acid

CAS number : 87-69-4

Teflon

CAS number : 9002-84-0

Telluric acid

CAS number : 7803-68-1

Tellurium dioxide

CAS number : 7446-07-3

Tellurium hexafluoride

CAS number : 7783-80-4

UN number : UN2195

Tellurium tetrachloride

CAS number : 10026-07-0

Temephos

CAS number : 3383-96-8

Terbium chloride

CAS number : 10042-88-3

Terephthalic acid

CAS number : 100-21-0

Terephthalonitrile

CAS number : 623-26-7

p-Terphenyle

CAS number : 92-94-4

m-Terphenyle

CAS number : 92-06-8

o-Terphenyle

CAS number : 84-15-1

alpha-Terpineol

CAS number : 98-55-5

Tertiairy butyl acetate

CAS number : 540-88-5

UN number : UN1123

Tetraacetaldehyde

CAS number : 108-62-3

UN number : UN1332

Tetraamminedichloroplatinum(II)

CAS number : 13933-32-9

TETRABROMODIPHENYL ETHER

CAS number : 40088-47-9

1,1,2,2-Tetrabromoethane

CAS number : 79-27-6

UN number : UN2504

Tetrabromoethane

CAS number : 25167-20-8

1,1,2,2-Tetrachloro-1,2-difluoroethane

CAS number : 76-12-0

1,1,1,2-Tetrachloro-2,2-difluoroethane

CAS number : 76-11-9

Tetrachloroauric acid

CAS number : 16903-35-8

3,3',4,4'-Tetrachloroazobenzene

CAS number : 14047-09-7

1,1,2,2-Tetrachloroethane

CAS number : 79-34-5

UN number : UN1702

1,1,1,2-Tetrachloroethane

CAS number : 630-20-6

Tetrachloroethylene

CAS number : 127-18-4

UN number : UN1897

Tetrachloronaphthalene

CAS number : 1335-88-2

2,3,4,6-Tetrachlorophenol

CAS number : 58-90-2

UN number : UN2020

1,1,2,3-Tetrachloropropene

CAS number : 10436-39-2

2,3,7,8-Tetrachlrodibenzo-p-dioxin (TCDD)

CAS number : 1746-01-6

Tetradecafluorohexane

CAS number : 355-42-0

Tetradecane

CAS number : 629-59-4

Tetraethanolammonium hydroxide

CAS number : 631-41-4

Tetraethyl tin

CAS number : 597-64-8

Tetraethylenepentamine

CAS number : 112-57-2

UN number : UN2320

1,1,2,2-Tetrafluoroethane

CAS number : 359-35-3

1,1,1,2-Tetrafluoroethane

CAS number : 811-97-2

UN number : UN3159

Tetrafluoroethene

CAS number : 116-14-3

UN number : UN1081

Tetrafluorohydrazine

CAS number : 10036-47-2

1,2,3,6-Tetrahydrobenzaldehyde

CAS number : 100-50-5

UN number : UN2498

Tetrahydrofuran

CAS number : 109-99-9

UN number : UN2056

Tetrahydrofurfuryl alcohol

CAS number : 97-99-4

Tetrahydrofurfuryl methacrylate

CAS number : 2455-24-5

Tetrahydronaphthalene

CAS number : 119-64-2

Tetrahydrophthalic acid anhydride

CAS number : 85-43-8

Tetrahydrure de silicium

CAS number : 7803-62-5

UN number : UN2203

N,N,N',N'-Tetrakis(2-hydroxyethyl)hexane diamide

CAS number : 6334-25-4

N,N,N',N'-Tetramethyl-1,2-diaminoethane

CAS number : 110-18-9

UN number : UN2372

N,N,N',N',Tetramethyl-1,3-butanediamine

CAS number : 97-84-7

Tetramethylammonium hydroxide

CAS number : 75-59-2

UN number : UN1835

2,6,10,14-Tetramethylpentadecane

CAS number : 1921-70-6

Tetramethylsuccinonitrile

CAS number : 3333-52-6

Tetramethylurea

CAS number : 632-22-4

Tetranitromethane

CAS number : 509-14-8

UN number : UN1510

Tetrapotassium pyrophosphate

CAS number : 7320-34-5

Tetrapropyl lead

CAS number : 3440-75-3

Tetrasodium ethylene diamine tetraacetate

CAS number : 64-02-8

Tetrasodium ethylene diamine tetraacetate 39%

Tetrasodium ethylene diamine tetraacetate 50%

Tetrasodium ethylene diamine tetraacetate dihydrate

CAS number : 10378-23-1

Tetrasodium pyrophosphate decahydrate

CAS number : 13472-36-1

Tetrathiafulvalene

CAS number : 31366-25-3

Tetryl

CAS number : 479-45-8

Thallium

CAS number : 7440-28-0

Thallium bromide

CAS number : 7789-40-4

Thallium malonate

CAS number : 2757-18-8

Thallium sulfate

CAS number : 10031-59-1

Thallium(I) fluoride

CAS number : 7789-27-7

Thallium(I) iodide

CAS number : 7790-30-9

Thallium(III) oxide

CAS number : 1314-32-5

Thallium(III) sulfate

CAS number : 16222-66-5

Thallous acetate

CAS number : 563-68-8

UN number : UN1707

Thallous carbonate

CAS number : 6533-73-9

UN number : UN1707

Thallous chloride

CAS number : 7791-12-0

UN number : UN1707

Thallous nitrate

CAS number : 10102-45-1

UN number : UN2727

Thallous sulfate

CAS number : 7446-18-6

UN number : UN1707

Thiethylperazine dimaleate

CAS number : 1179-69-7

Thioacetamide

CAS number : 62-55-5

4,4'-Thiobis(6-tert-butyl-m-cresol)

CAS number : 96-69-5

2-(THIOCYANATOMETHYLTHIO)BENZO(D)THIAZOLE

CAS number : 21564-17-0

4,4'-Thiodianiline

CAS number : 139-65-1

4,4'-Thiodiphenol

CAS number : 2664-63-3

Thiodipropionic acid

CAS number : 111-17-1

Thioglycolic acid

CAS number : 68-11-1

UN number : UN1940

Thiolactic acid

CAS number : 79-42-5

UN number : UN2936

Thionyl chloride

CAS number : 7719-09-7

UN number : UN1836

Thionyl fluoride

CAS number : 7783-42-8

Thiophosgene

CAS number : 463-71-8

UN number : UN2474

Thiophosphoryl chloride

CAS number : 3982-91-0

UN number : UN1837

Thiourea

CAS number : 62-56-6

Thiourea, n-(2-hydroxyethyl)-N'-2-propenyl-

CAS number : 105-81-7

d-Threonine

CAS number : 632-20-2

l-Threonine

CAS number : 72-19-5

Thulium chloride

CAS number : 13537-18-3

Tiglic acid

CAS number : 80-59-1

Tin

CAS number : 7440-31-5

Tin dioxide

CAS number : 18282-10-5

Tin fluoroborate

CAS number : 13814-97-6

Tin(II) fluoride

CAS number : 7783-47-3

Titanium dioxide

CAS number : 13463-67-7

Titanium disulfate

CAS number : 13693-11-3

Titanium selenide

CAS number : 12067-45-7

Titanium tetrachloride

CAS number : 7550-45-0

UN number : UN1838

Titanium trichloride

CAS number : 7705-07-9

Titanium trifluoride

CAS number : 13470-08-1

Titanocene dichloride

CAS number : 1271-19-8

o-Tolidine hydrochloride

CAS number : 612-82-8

Toluene

CAS number : 108-88-3

UN number : UN1294

Toluene 2,4-diisocyanate

CAS number : 584-84-9

UN number : UN2078

Toluene 2,6-diisocyanate

CAS number : 91-08-7

UN number : UN2078

Toluene diisocyantate

CAS number : 26471-62-5

UN number : UN2078

Toluene-2,4-diamine

CAS number : 95-80-7

UN number : UN1709

Toluene-3,4-diamine

CAS number : 496-72-0

Toluene-3,5-diamine

CAS number : 108-71-4

Toluene-ar,ar'-diamine (mixed isomers)

CAS number : 25376-45-8

o-Toluenesulfonamide

CAS number : 88-19-7

p-Toluenesulfonic acid

CAS number : 104-15-4

p-Toluenesulfonic acid monohydrate

CAS number : 6192-52-5

Toluenesulphonic acid

CAS number : 25231-46-3

m-Toluic acid

CAS number : 99-04-7

p-Toluidine

CAS number : 106-49-0

UN number : UN1708

m-Toluidine

CAS number : 108-44-1

UN number : UN1708

o-Toluidine

CAS number : 95-53-4

UN number : UN1708

O-toluidine hydrochloride

CAS number : 636-21-5

m-Toluidine hydrochloride

CAS number : 638-03-9

p-Toluidine hydrochloride

CAS number : 540-23-8

m-Tolyl acetate

CAS number : 122-46-3

p-Tolyl acetate

CAS number : 140-39-6

Tolyl aldehyde

CAS number : 1334-78-7

1,4-bis(p-Tolylamino)anthraquinone

CAS number : 128-80-3

Toxaphene

CAS number : 8001-35-2

Tremolite

CAS number : 77536-68-6

UN number : UN2590

Tremolite

CAS number : 14567-73-8

UN number : UN2590

Tri(butoxyethyl) phosphate

CAS number : 78-51-3

2,4,6-Tri(dimethylaminomethyl)phenol

CAS number : 90-72-2

Triacetaldehyde

CAS number : 123-63-7

UN number : UN1264

Triallyl borate

CAS number : 1693-71-6

UN number : UN2609

Triallylamine

CAS number : 102-70-5

UN number : UN2610

Tribasic lead perchlorate

CAS number : 13453-62-8

UN number : UN1470

Tribasic lead sulfate

CAS number : 12202-17-4

TRIBROMODIPHENYL ETHER

CAS number : 49690-94-0

Tribromomethane

CAS number : 75-25-2

UN number : UN2515

Tributyl borate

CAS number : 688-74-4

Tributyl phosphate

CAS number : 126-73-8

TRIBUTYL((2-METHYL-1-OXO-2-PROPENYL)OXY)STANNANE

CAS number : 2155-70-6

Tributylamine

CAS number : 102-82-9

UN number : UN2542

Tributyltin benzoate

CAS number : 4342-36-3

Tributyltin chloride

CAS number : 1461-22-9

Tributyltin fluoride

CAS number : 1983-10-4

Trichloro diphenyl oxide

CAS number : 57321-63-8

1,1,2-Trichloro-1,2,2-trifluoroethane

CAS number : 76-13-1

1,2,2-Trichloro-1,2-difluoroethane

CAS number : 354-15-4

1,1,1-Trichloro-2,2,2-trifluoroethane

CAS number : 354-58-5

1,1,1-Trichloro-2,2-difluoroethane

CAS number : 354-21-2

Trichloroacetamide

CAS number : 594-65-0

Trichloroacetyl chloride

CAS number : 76-02-8

UN number : UN2442

1,3,5-Trichlorobenzene

CAS number : 108-70-3

1,2,3-Trichlorobenzene

CAS number : 87-61-6

1,2,4-Trichlorobenzene

CAS number : 120-82-1

UN number : UN2321

Trichlorobutene

CAS number : 51023-22-4

UN number : UN2322

Trichlorobutylene oxide

CAS number : 3083-25-8

1,1,2-Trichloroethane

CAS number : 79-00-5

1,1,1-Trichloroethane

CAS number : 71-55-6

UN number : UN2831

Trichloroethylene

CAS number : 79-01-6

UN number : UN1710

Trichlorofluoromethane

CAS number : 75-69-4

Trichloroisocyanuric acid

CAS number : 87-90-1

UN number : UN2468

1,4,6-Trichloronaphthalene

CAS number : 2437-54-9

Trichloronaphthalene

CAS number : 1321-65-9

1,1,1-Trichloropentafluoropropane

CAS number : 4259-43-2

1,1,3-Trichloropentafluoropropane

CAS number : 1652-81-9

2,3,6-Trichlorophenol

CAS number : 933-75-5

UN number : UN2020

2,4,5-Trichlorophenol

CAS number : 95-95-4

UN number : UN2020

2,4,5-Trichlorophenol

CAS number : 77001-45-7

UN number : UN2020

3,4,5-Trichlorophenol

CAS number : 609-19-8

UN number : UN2020

2,3,4-Trichlorophenol

CAS number : 15950-66-0

UN number : UN2020

2,3,5-Trichlorophenol

CAS number : 933-78-8

UN number : UN2020

2,4,6-Trichlorophenol

CAS number : 88-06-2

UN number : UN2020

1,2,3-Trichloropropane

CAS number : 96-18-4

Tricresyl phosphate

CAS number : 1330-78-5

Tridecane

CAS number : 629-50-5

Tridymite

CAS number : 15468-32-3

Triethoxysilane

CAS number : 998-30-1

Triethylene glycol

CAS number : 112-27-6

Triethylene glycol dimethacrylate

CAS number : 109-16-0

Triethylenediamine

CAS number : 280-57-9

Triethylenetetramine

CAS number : 112-24-3

UN number : UN2259

Triethylenetetramine propoxylated

CAS number : 117501-59-4

Triethylenetetramine propoxylated

CAS number : 88375-39-7

Triethylenetetramine propoxylated

CAS number : 68441-70-3

Triethylnemelamine

CAS number : 51-18-3

Trifluoroacetic acid

CAS number : 76-05-1

UN number : UN2699

Trifluoroacetic acid anhydride

CAS number : 407-25-0

Trifluorochloroethylene

CAS number : 79-38-9

UN number : UN1082

1,1,2-Trifluoroethane

CAS number : 430-66-0

1,1,1-Trifluoroethane

CAS number : 420-46-2

UN number : UN2035

Trifluoromethane

CAS number : 75-46-7

UN number : UN1984

Trifluoromethanesulfonic acid

CAS number : 1493-13-6

2-(Trifluoromethyl) aniline

CAS number : 88-17-5

UN number : UN2942

3-(Trifluoromethyl) aniline

CAS number : 98-16-8

UN number : UN2948

3,3,3-Trifluoropropene

CAS number : 677-21-4

Triglycidyl isocyanurate

CAS number : 2451-62-9

1,3,5-Trihydroxybenzene, dihydrate

CAS number : 6099-90-7

Triiodomethane

CAS number : 75-47-8

Triiron tetroxide

CAS number : 1317-61-9

Triisopropanolamine

CAS number : 122-20-3

1,2,3-Triketohydrindene monohydrate

CAS number : 485-47-2

Trimellitic anhydride

CAS number : 552-30-7

Trimethyl borate

CAS number : 121-43-7

UN number : UN2416

Trimethyl phosphite

CAS number : 121-45-9

UN number : UN2329

2,2,4-Trimethyl-1,3-pentanediol monoisobutyrate

CAS number : 25265-77-4

3,5,5-Trimethyl-2-cyclohexen-1-one

CAS number : 78-59-1

Trimethylamine

CAS number : 75-50-3

UN number : UN1083

1,2,4-Trimethylbenzene

CAS number : 95-63-6

Trimethylbenzene

CAS number : 25551-13-7

2,2,3-Trimethylbutane

CAS number : 464-06-2

UN number : UN1206

3,3,5-Trimethylcyclohexanol

CAS number : 116-02-9

Trimethylcyclohexylamine

CAS number : 34216-34-7

Trimethylene bromide chloride

CAS number : 109-70-6

UN number : UN2688

Trimethylhexamethylene diamine

CAS number : 25620-58-0

Trimethylhexamethylene diisocyanate

CAS number : 28679-16-5

UN number : UN2328

2,3,5-Trimethylnaphthalene

CAS number : 2245-38-7

Trimethylolpropane triacrylate

CAS number : 15625-89-5

Trimethylphosphate

CAS number : 512-56-1

Trimethylthiourea

CAS number : 2489-77-2

Trimethyltin chloride

CAS number : 1066-45-1

Tri-n-amyl borate

CAS number : 621-78-3

Tri-n-butyltin salicylate

CAS number : 4342-30-7

2,4,6-Trinitrotoluene

CAS number : 118-96-7

Tri-o-cresyl phosphate

CAS number : 78-30-8

Triphenyl phosphate

CAS number : 115-86-6

Triphenyl phosphite

CAS number : 101-02-0

Triphenylamine

CAS number : 603-34-9

Triphenyltin acetate

CAS number : 900-95-8

Triphenyltin chloride

CAS number : 639-58-7

Triphenyltin hydroxide

CAS number : 76-87-9

Tripotassium phosphate

CAS number : 7778-53-2

Tripropylamine

CAS number : 102-69-2

UN number : UN2260

Tris(1-aziridinyl)phosphine oxide

CAS number : 545-55-1

Tris(2-ethylhexyl) phosphate

CAS number : 78-42-2

Tris(2-hydroxyethyl)amine

CAS number : 102-71-6

Tris(dibromopropyl) phosphate

CAS number : 126-72-7

Tris(hydroxymethyl)aminomethane

CAS number : 77-86-1

TRISODIUM NITRILOTRIACETATE MONOHYDRATE

CAS number : 18662-53-8

Trisodium orthovanadate

CAS number : 13721-39-6

Trisodium phosphate

CAS number : 7601-54-9

Trypan blue

CAS number : 72-57-1

Tryptones

CAS number : 73049-73-7

Tungsten

CAS number : 7440-33-7

Tungsten hexachloride

CAS number : 13283-01-7

Tungsten trioxide

CAS number : 1314-35-8

Tungstene hexacarbonyl

CAS number : 14040-11-0

Turpentine

CAS number : 8006-64-2

UN number : UN1299

l-Tyrosine

CAS number : 60-18-4

d-Tyrosine

CAS number : 556-02-5