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Important Considerations When Purchasing Chemicals

These chemicals should be removed from the schools if alternatives can be used. For those that must be retained, amounts should be kept to a minimum. These are appropriate for advanced-level High School classes only.

This following list was generated from the School Chemistry Laboratory Safety Guide published by U.S. Department of Health and Human Services, National Institute for Occupational Safety and Health [2006].

Carcinogenic substances were identified from the Report on Carcinogens (10th Edition) generated by the National Toxicology Program (2002).


Chemical

CAS Number

Hazard

Acetamide

60–35–5

Combustible solid

Aluminum chloride

7446–70–0

Water reactive, corrosive

Ammonium bichromate

7789–09–5

Oxidizer, corrosive, known human carcinogen

Ammonium oxalate

1113–38–8

May be fatal if inhaled or ingested

Ammonium vanadate

7803–55–6

May be fatal if inhaled or ingested

Antimony

7440–36–0

May be fatal if inhaled, irritant

Antimony oxide

1309–64–4

Irritant

Antimony potassium tartrate

11071–15–1

Irritant

Barium chloride

10361–37–2

May be fatal if ingested, irritant

Benzone (phenylbutazone)

50–33–9

Irritant

Beryllium carbonate

66104–24–3

Irritant

Bromine

7726–95–6

Oxidizer, corrosive, may be fatal if inhaled or ingested

Cadmium and cadmium compounds

N/A

Known human carcinogen

Carmine

860–22–0

Irritant, burning may produce carbon monoxide, carbon dioxide, sulfur oxides, and nitrogen oxides.

Catechol

120–80–9

Corrosive

Chromic acid

7738–94–5

Oxidizer, known human carcinogen

Chromium acetate

1066–30–4

Irritant

Cobalt, metal

7440–48–4

Possible human carcinogen (IARC, Group 2B)

Cobalt nitrate

10141–05–6

Oxidizer, irritant

Cyclohexane

110–82–7

Flammable (NFPA = 3)

Cyclohexene

110–83–8

Flammable (nfpa = 3), corrosive, forms peroxides

Dichloroindophenol sodium salt

620–45–1

Irritant

2,4–Dinitrophenol

51–28–5

Irritant

Ferrous Sulfate

7720–78–7

Irritant

Formaldehyde (formalin)

50–00–0

Flammable (NFPA = 3), reasonably anticipated human carcinogen

Fuchsin (acid/basic)

3244–88–0/ 632–99–5

Irritant

Gasoline

8006–61–9

Flammable (NFPA = 3)

Hematoxylin

517–28–2

Irritant

Hydrogen sulfide

7783–06–4

Corrosive

Hydroquinone

123–31–9

May be fatal if ingested

Isoamyl alcohol (isopentyl alcohol)

123–51–3

Irritant, combustible liquid and vapor

Isobutyl alcohol

78–83–1

Flammable (NFPA = 3)

Magnesium chlorate

10326–21–3

Irritant

Methyl ethyl ketone

78–93–3

Irritant, flammable (NFPA = 3)

Methyl oleate

112–62–9

Toxic properties not investigated

Nickel carbonate

3333–67–3

Reasonably anticipated human carcinogen

Nickelous acetate

373–02–4

Reasonably anticipated human carcinogen

Paradichlorobenzene

106–46–7

Irritant

Pentane

109–66–0

Irritant, flammable (NFPA = 4)

Petroleum ether

8032–32–4

Flammable (NFPA = 4)

1–Phenyl–2–Thiourea (Phenylthiocarbamide)

103–85–5

May be fatal if inhaled or ingested

Potassium chlorate

3811–04–9

Oxidizer

Potassium chromate

7789–00–6

Oxidizer, known human carcinogen

Potassium periodate

7790–21–8

Oxidizer

Potassium permanganate

7722–64–7

Oxidizer, corrosive

Salol (phenyl salicylate)

118–55–8

Irritant

Sodium bromate

7789–38–0

Oxidizer

Sodium chlorate

7775–09–9

Oxidizer

Sodium fluoride

7681–49–4

May be fatal if inhaled or ingested

Sodium oxalate

62–76–0

Corrosive, may be fatal if ingested

Sodium nitrate

7631–99–4

Oxidizer, irritant

Sodium silicofluoride

16893–85–9

Toxic

Sudan III

85–86–9

Decomposes to oxides of nitrogen

Sulfamethazine

57–68–1

Irritant

Toluene

108–88–3

Flammable (NFPA = 3), irritant, may be fatal if ingested

Trichloroethylene

79–01–6

Reasonably anticipated human carcinogen

Urethane

51–79–6

Combustible, reasonably anticipated human carcinogen

Xylenes

1330–20–7

Flammable (NFPA = 3), irritant, may be fatal if ingested


This information is from the School Chemistry Laboratory Safety Guide created by the U.S. Consumer Safety Product Commission (CPSC), Department of Health and Human Services, Centers for Disease Control and Prevention (CDC), and the National Institute for Occupational Safety and Health (NIOSH).


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