Acetone
Finger nail polish remover, a preservative for dead frogs, an insecticide.

Ammonia
A hazardous chemical--added to increase the addictiveness of nicotine.

Arsenic
Used in rat poisons

Benzene
A narcotic that will damage white blood cells--used in making dyes, synthetic rubber, insecticides, and cleansers etc.

Butane
Gas used in lighter fluid

Cadmium
Used in batteries

Carbon monoxide
Poisonous gas

Cyanide
Deadly poison

DDT
A banned insecticide

Formaldehyde
Preserve dead specimens

Lead
Poisonous in high doses. Causes brain damage

Methanol
Wood alcohol-used as a gasoline additive substitute. Can cause blindness.

Methyl Isocyanate
Its accidental release killed 2000 people in Bhopal, India in 1984.

Naphthalene
Ingredient in mothballs

Polonium
Cancer-causing, radioactive

Tar
A sticky brown substance found in smoke. Stains teeth, clogs lungs. Causes disease, disability, and death.

Urea
A constituent of urine