The classification list provided in this document was compiled in response to requests for information concerning classifications under federal legislation on hazardous products. Please note that this is not an exhaustive list of hazardous products according to WHMIS 2015.

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 Hazardous Products Regulations (SOR/2015-17). It does not replace the supplier’s classification which can be found on its Safety Data Sheet.

Since the list contains many product names (2419​​​), it is arranged alphabetically, according to the first letter of the name. Click on the letters below to access the product lists.

Useful tip: To use the WHMIS product list in a spreadsheet, download the text (CSV) file containing the WHMIS classification. The key of this file. Please take note that field delimiter is "|" (ascii 124).

View full list (PDF, 1143 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

d-Tartaric acid

CAS number : 147-71-7

l-Tartaric acid

CAS number : 87-69-4

Tartaric acid

CAS number : 133-37-9

Teflon

CAS number : 9002-84-0

Tellurium dioxide

CAS number : 7446-07-3

Tellurium hexafluoride

CAS number : 7783-80-4

UN number : UN2195

Temephos

CAS number : 3383-96-8

Terephthalic acid

CAS number : 100-21-0

Terphenyls

CAS number : 26140-60-3

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

TETRABROMODIPHENYL ETHER

CAS number : 40088-47-9

1,1,2,2-Tetrabromoethane

CAS number : 79-27-6

UN number : UN2504

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

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

Tetradecafluorohexane

CAS number : 355-42-0

Tetradecane

CAS number : 629-59-4

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

Tetrahydrofuran

CAS number : 109-99-9

UN number : UN2056

Tetrahydrure de silicium

CAS number : 7803-62-5

UN number : UN2203

2,6,10,14-Tetramethylpentadecane

CAS number : 1921-70-6

Tetramethylsuccinonitrile

CAS number : 3333-52-6

Tetranitromethane

CAS number : 509-14-8

UN number : UN1510

Tetrapotassium pyrophosphate

CAS number : 7320-34-5

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

UN number : UN0208

Thallium

CAS number : 7440-28-0

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

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

CAS number : 96-69-5

2-(THIOCYANATOMETHYLTHIO)BENZO(D)THIAZOLE

CAS number : 21564-17-0

Thioglycolic acid

CAS number : 68-11-1

UN number : UN1940

Thionyl chloride

CAS number : 7719-09-7

UN number : UN1836

Thionyl fluoride

CAS number : 7783-42-8

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

Thiram

CAS number : 137-26-8

l-Threonine

CAS number : 72-19-5

d-Threonine

CAS number : 632-20-2

Tin

CAS number : 7440-31-5

Tin dioxide

CAS number : 18282-10-5

Titanium selenide

CAS number : 12067-45-7

Titanium tetrachloride

CAS number : 7550-45-0

UN number : UN1838

Titanium trifluoride

CAS number : 13470-08-1

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

p-Toluenesulfonic acid

CAS number : 104-15-4

p-Toluenesulfonic acid monohydrate

CAS number : 6192-52-5

m-Toluic acid

CAS number : 99-04-7

m-Toluidine

CAS number : 108-44-1

UN number : UN1708

o-Toluidine

CAS number : 95-53-4

UN number : UN1708

p-Toluidine

CAS number : 106-49-0

UN number : UN1708

m-Toluidine hydrochloride

CAS number : 638-03-9

O-toluidine hydrochloride

CAS number : 636-21-5

p-Toluidine hydrochloride

CAS number : 540-23-8

p-Tolyl acetate

CAS number : 140-39-6

m-Tolyl acetate

CAS number : 122-46-3

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

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 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

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

Trichloroacetic acid

CAS number : 76-03-9

UN number : UN1839

1,2,3-Trichlorobenzene

CAS number : 87-61-6

1,3,5-Trichlorobenzene

CAS number : 108-70-3

1,2,4-Trichlorobenzene

CAS number : 120-82-1

UN number : UN2321

1,1,1-Trichloroethane

CAS number : 71-55-6

UN number : UN2831

1,1,2-Trichloroethane

CAS number : 79-00-5

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

2,4,5-Trichlorophenol

CAS number : 95-95-4

UN number : UN2020

2,3,6-Trichlorophenol

CAS number : 933-75-5

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

2,4,6-Trichlorophenol

CAS number : 88-06-2

UN number : UN2020

2,3,5-Trichlorophenol

CAS number : 933-78-8

UN number : UN2020

2,4,5-Trichlorophenol

CAS number : 77001-45-7

UN number : UN2020

1,2,3-Trichloropropane

CAS number : 96-18-4

Tridecane

CAS number : 629-50-5

Tridymite

CAS number : 15468-32-3

Triethoxysilane

CAS number : 998-30-1

Triethylamine

CAS number : 121-44-8

UN number : UN1296

Triethylene glycol

CAS number : 112-27-6

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

Trifluorochloroethylene

CAS number : 79-38-9

UN number : UN1082

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

Triglycidyl isocyanurate

CAS number : 2451-62-9

alpha-Triglycidyl isocyanurate

CAS number : 59653-73-5

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

Trimethylbenzene

CAS number : 25551-13-7

1,2,4-Trimethylbenzene

CAS number : 95-63-6

2,3,5-Trimethylnaphthalene

CAS number : 2245-38-7

Trimethylolpropane triacrylate

CAS number : 15625-89-5

Trinitrophenol, wetted or Picric acid, wetted with not less than 30 % water, by mass

UN number : UN1344

2,4,6-Trinitrotoluene

CAS number : 118-96-7

UN number : UN0209

Tri-o-cresyl phosphate

CAS number : 78-30-8

Triphenyl phosphate

CAS number : 115-86-6

Triphenylamine

CAS number : 603-34-9

Tripotassium phosphate

CAS number : 7778-53-2

Tris(2-ethylhexyl) phosphate

CAS number : 78-42-2

Tris(2-hydroxyethyl)amine

CAS number : 102-71-6

Tris(hydroxymethyl)aminomethane

CAS number : 77-86-1

TRISODIUM NITRILOTRIACETATE MONOHYDRATE

CAS number : 18662-53-8

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

d-Tyrosine

CAS number : 556-02-5

l-Tyrosine

CAS number : 60-18-4