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 Q - R - S affichées

Quinaldine

CAS number : 91-63-4

8-Quinolinol

CAS number : 148-24-3

Red phosphorus

CAS number : 7723-14-0

UN number : UN1338

Red phosphorus

CAS number : 29879-37-6

UN number : UN1338

Resorcinol

CAS number : 108-46-3

UN number : UN2876

Rhodamine B

CAS number : 81-88-9

Rhodium

CAS number : 7440-16-6

Rockwool

Rosin

CAS number : 8050-09-7

Rosin, sodium salt

CAS number : 61790-51-0

Rotenone

CAS number : 83-79-4

Rubber solvent (Naphtha)

CAS number : 8030-30-6

UN number : UN1993

Rubidium chromate

CAS number : 13446-72-5

Rubidium fluoride

CAS number : 13446-74-7

Ruthenium dioxide

CAS number : 12036-10-1

Safranin O

CAS number : 477-73-6

Scorbic palmitate

CAS number : 137-66-6

Sebacic acid

CAS number : 111-20-6

Secondary amyl acetate

CAS number : 626-38-0

UN number : UN1104

Secondary butyl acetate

CAS number : 105-46-4

UN number : UN1123

Secondary butyl alcohol

CAS number : 78-92-2

UN number : UN1120

Secondary hexyl acetate

CAS number : 108-84-9

UN number : UN1233

Selacholeic acid

CAS number : 506-37-6

Selenious acid

CAS number : 7783-00-8

Selenium

CAS number : 7782-49-2

Selenium (amorphous)

CAS number : 7782-49-2

Selenium (crystalline)

CAS number : 7782-49-2

Selenium dichloride

CAS number : 10025-68-0

Selenium dioxide

CAS number : 7446-08-4

Selenium hexafluoride

CAS number : 7783-79-1

UN number : UN2194

Selenium monosulfide

CAS number : 7446-34-6

Selenium oxydichloride

CAS number : 7791-23-3

UN number : UN2879

Selenium tetrachloride

CAS number : 10026-03-6

Sepharose

CAS number : 9012-36-6

d-Serine

CAS number : 312-84-5

l-Serine

CAS number : 56-45-1

Sesone

CAS number : 136-78-7

Sevin

CAS number : 63-25-2

Silanetriol, methyl-, triacetate

CAS number : 4253-34-3

Silica gel

CAS number : 63231-67-4

Silicon

CAS number : 7440-21-3

UN number : UN1346

Silicon carbide

CAS number : 409-21-2

Silicon tetrafluoride

CAS number : 7783-61-1

UN number : UN1859

Silver

CAS number : 7440-22-4

Silver acetate

CAS number : 563-63-3

Silver bromide

CAS number : 7785-23-1

Silver chloride

CAS number : 7783-90-6

Silver cyanide

CAS number : 506-64-9

UN number : UN1684

Silver iodate

CAS number : 7783-97-3

Silver nitrate

CAS number : 7761-88-8

UN number : UN1493

Silver nitrate 1,7 % (0,1N)

Silver nitrate 3,4 % (0,2N)

Silver nitrite

CAS number : 7783-99-5

Silver perchlorate

CAS number : 7783-93-9

Silver sulfate

CAS number : 10294-26-5

Slagwool

Soapstone

CAS number : 14378-12-2

Sodium

CAS number : 7440-23-5

UN number : UN1428

SODIUM (C14-16) OLEFIN SULFONATE

CAS number : 68439-57-6

Sodium abietate

CAS number : 14351-66-7

Sodium acetate

CAS number : 127-09-3

Sodium acetate trihydrate

CAS number : 6131-90-4

Sodium acrylate-acrylamide copolymer

CAS number : 25085-02-3

Sodium aluminum oxide

CAS number : 1302-42-7

Sodium ammonium phosphate

CAS number : 13011-54-6

Sodium arsenate dodecahydrate

CAS number : 13510-46-8

UN number : UN1685

Sodium arsenite

CAS number : 7784-46-5

UN number : UN2027

Sodium azide

CAS number : 26628-22-8

UN number : UN1687

Sodium benzoate

CAS number : 532-32-1

Sodium bicarbonate

CAS number : 144-55-8

Sodium bifluoride

CAS number : 1333-83-1

UN number : UN2439

Sodium bisulfate

CAS number : 7681-38-1

Sodium bisulfate monohydrate

CAS number : 10034-88-5

Sodium bisulfite

CAS number : 7631-90-5

Sodium bitartrate monohydrate

CAS number : 526-94-3

Sodium borate

CAS number : 1330-43-4

Sodium borohydride

CAS number : 16940-66-2

UN number : UN1426

Sodium borosilicate

CAS number : 50815-87-7

Sodium bromate

CAS number : 7789-38-0

UN number : UN1494

Sodium bromide

CAS number : 7647-15-6

Sodium carbonate anhydrous

CAS number : 497-19-8

Sodium chlorate

CAS number : 7775-09-9

UN number : UN1495

Sodium chloride

CAS number : 7647-14-5

Sodium chlorite

CAS number : 7758-19-2

UN number : UN1496

Sodium chromate

CAS number : 7775-11-3

Sodium citrate

CAS number : 6132-04-3

Sodium citrate anhydrous

CAS number : 68-04-2

Sodium citrate pentahydrate

CAS number : 6858-44-2

Sodium cobaltinitrite

CAS number : 13600-98-1

Sodium cyanate

CAS number : 917-61-3

Sodium cyanide

CAS number : 143-33-9

UN number : UN1689

Sodium desoxycholate

CAS number : 302-95-4

Sodium dichloroisocyanurate

CAS number : 2893-78-9

UN number : UN2465

Sodium dichloroisocyanurate dihydrate

CAS number : 51580-86-0

Sodium dichromate

CAS number : 10588-01-9

Sodium dichromate dihydrate

CAS number : 7789-12-0

Sodium diethylbarbiturate

CAS number : 144-02-5

Sodium diethyldithiocarbamate

CAS number : 148-18-5

Sodium dimethylarsinate

CAS number : 124-65-2

UN number : UN1688

Sodium dodecylbenzene sulfonate

CAS number : 25155-30-0

Sodium ethylate

CAS number : 141-52-6

Sodium ferricyanide

CAS number : 14217-21-1

Sodium fluoride

CAS number : 7681-49-4

UN number : UN1690

Sodium fluoroacetate

CAS number : 62-74-8

UN number : UN2629

Sodium fluoroborate

CAS number : 13755-29-8

Sodium fluorosilicate

CAS number : 16893-85-9

UN number : UN2674

Sodium formate

CAS number : 141-53-7

Sodium gluconate

CAS number : 527-07-1

Sodium glycinate

CAS number : 6000-44-8

Sodium hexametaphosphate

CAS number : 10124-56-8

Sodium hydrosulfite

CAS number : 7775-14-6

UN number : UN1384

Sodium hydroxide

CAS number : 1310-73-2

UN number : UN1823

Sodium hydroxide 2%

UN number : UN1824

Sodium hydroxide 2.5%

UN number : UN1824

Sodium hydroxide 5%

UN number : UN1824

Sodium hydroxide 10%

UN number : UN1824

Sodium hydroxide 16%

UN number : UN1824

Sodium hydroxide 20%

UN number : UN1824

Sodium hydroxide 40%

UN number : UN1824

Sodium hydroxide 50 % in aqueous solution

UN number : UN1824

Sodium hydroxide 73% in aqueous solution

UN number : UN1824

Sodium hydroxide 8,7N

UN number : UN1824

Sodium hypochlorite 12%

UN number : UN1791

Sodium hypochlorite 4 %

Sodium hypochlorite 6%

Sodium iodate

CAS number : 7681-55-2

Sodium iodide

CAS number : 7681-82-5

Sodium iodide dihydrate

CAS number : 13517-06-1

Sodium lactate

CAS number : 72-17-3

Sodium lactate 60%

Sodium lauryl sulfate

CAS number : 151-21-3

Sodium metabisulfite

CAS number : 7681-57-4

Sodium metaperiodate

CAS number : 7790-28-5

Sodium metasilicate

CAS number : 6834-92-0

Sodium metasilicate nonahydrate

CAS number : 13517-24-3

Sodium methylate

CAS number : 124-41-4

UN number : UN1431

Sodium methylene naphthalene sulfonate

CAS number : 26545-58-4

Sodium molybdate

CAS number : 7631-95-0

Sodium monochloroacetate

CAS number : 3926-62-3

UN number : UN2659

Sodium monofluorophosphate

CAS number : 10163-15-2

Sodium naphthalene-2-sulfonate

CAS number : 532-02-5

Sodium naphthalenesulfonate

CAS number : 1321-69-3

Sodium nitrate

CAS number : 7631-99-4

UN number : UN1498

Sodium nitrilotriacetate

CAS number : 5064-31-3

Sodium oxalate

CAS number : 62-76-0

Sodium oxide

CAS number : 1313-59-3

UN number : UN1825

Sodium pentachlorophenate

CAS number : 131-52-2

UN number : UN2567

Sodium perborate

CAS number : 7632-04-4

Sodium perborate monohydrate

CAS number : 10332-33-9

Sodium perborate tetrahydrate

CAS number : 10486-00-7

Sodium perchlorate

CAS number : 7601-89-0

UN number : UN1502

Sodium permanganate

CAS number : 10101-50-5

UN number : UN1503

Sodium persulfate

CAS number : 7775-27-1

UN number : UN1505

Sodium propionate

CAS number : 137-40-6

Sodium pyrophosphate

CAS number : 7722-88-5

Sodium salicylate

CAS number : 54-21-7

Sodium selenate

CAS number : 13410-01-0

UN number : UN2630

Sodium silicate (SiO2:Na2O ratio more than 2,4:1)

CAS number : 1344-09-8

Sodium silicoaluminate

CAS number : 1344-00-9

Sodium stannate

CAS number : 12027-70-2

Sodium sulfate

CAS number : 7757-82-6

Sodium sulfite

CAS number : 7757-83-7

Sodium tartrate dihydrate

CAS number : 6106-24-7

Sodium tellurite

CAS number : 10102-20-2

Sodium tetraborate decahydrate

CAS number : 1303-96-4

Sodium thiocyanate

CAS number : 540-72-7

Sodium thiosulfate

CAS number : 7772-98-7

Sodium thiosulfate 0,079% (0,01N)

Sodium thiosulfate 0,79% (0,1N)

Sodium thiosulfate 7,9% (1N)

Sodium thiosulfate pentahydrate

CAS number : 10102-17-7

Sodium tungstate

CAS number : 13472-45-2

Sodium tungstate dihydrate

CAS number : 10213-10-2

Sodium xylenesulfonate

CAS number : 1300-72-7

Soluble starch

CAS number : 9005-84-9

Soluble starch 1%

Sorbic acid

CAS number : 110-44-1

Soya oil

CAS number : 8001-22-7

Specially denatured ethyl alcohol S.D.A.G. no 1-p (95% vol.)

UN number : UN1986

Specially denatured ethyl alcohol S.D.A.G. no 1-p (anhydrous)

UN number : UN1986

Spermaceti oil

Spinel

CAS number : 1302-67-6

Stannic chloride pentahydrate

CAS number : 10026-06-9

UN number : UN2440

Stannous chloride

CAS number : 7772-99-8

Stannous oleate

CAS number : 1912-84-1

Stannous sulfate

CAS number : 7488-55-3

Starch

CAS number : 9005-25-8

Stearic acid

CAS number : 57-11-4

Stearyl alcohol

CAS number : 112-92-5

Stishovite

CAS number : 13778-37-5

Stoddard solvent

CAS number : 8052-41-3

Strontium chloride

CAS number : 10476-85-4

Strontium chloride dihydrate

CAS number : 16056-95-4

Strontium chloride hexahydrate

CAS number : 10025-70-4

Strontium chromate

CAS number : 7789-06-2

Strontium oxalate

CAS number : 814-95-9

Strontium oxide

CAS number : 1314-11-0

Strychnine

CAS number : 57-24-9

UN number : UN1692

Styrene butylmethacrylate polymer

CAS number : 25213-39-2

Sucrose

CAS number : 57-50-1

Sudan black B

CAS number : 4197-25-5

Sudan III

CAS number : 85-86-9

Sulfamic acid

CAS number : 5329-14-6

UN number : UN2967

Sulfamide

CAS number : 7803-58-9

Sulfanilic acid

CAS number : 121-57-3

Sulfated castor oil sodium salt

CAS number : 68187-76-8

Sulfated oleic acid

CAS number : 68170-59-2

Sulfur

CAS number : 7704-34-9

UN number : UN1350

Sulfur chloride

CAS number : 10025-67-9

UN number : UN1828

Sulfur chloride

CAS number : 10025-67-9

UN number : UN1828

Sulfur dioxide

CAS number : 7446-09-5

UN number : UN1079

Sulfur hexafluoride

CAS number : 2551-62-4

UN number : UN1080

Sulfur tetrafluoride

CAS number : 7783-60-0

UN number : UN2418

Sulfuric acid

CAS number : 7664-93-9

UN number : UN1830

Sulfuric acid 2% (0,4N)

UN number : UN2796

Sulfuric acid 0,049% (0,01N)

UN number : UN2796

Sulfuric acid 12,25% (2,5N)

UN number : UN2796

Sulfuric acid 21,7% (5N)

Sulfuric acid 35% (9N)

UN number : UN2796

Sulfuric acid 36% (9,3N)

UN number : UN2796

Sulfuric acid 38% (10N)

UN number : UN2796

Sulfuric acid 4,9% (1N)

UN number : UN1830

Sulfuric acid 50% (14,2N)

UN number : UN2796

Sulfuric acid 70-75% (23-25,5N)

UN number : UN1830

Sulfuric acid 85% (30,8)

UN number : UN1830

Sulfurous acid

CAS number : 7782-99-2

UN number : UN1833

Synthetic camphor

CAS number : 76-22-2

UN number : UN2717

Synthetic graphite