of<unk>  in a metal container<unk>  (also called methylated spirits, in Australia, Canada, Ireland, New Zealand, South Africa, and the United Kingdom; wood spirit; and<unk>  rectified spirit) is ethanol that has additives to make it poisonous, bad-tasting, foul-smelling, or nauseating to discourage its recreational consumption. It is sometimes dyed so that it can be identified visually. Pyridine and methanol, each and together, make<unk>  poisonous; and denatonium makes it bitter.<unk>  is used as a solvent and as fuel for<unk>  burners and camping stoves. Because of the diversity of industrial uses for<unk> , hundreds of additives and denaturing methods have been used. The main additive usually is 10% methanol (methyl<unk> , hence the name methylated spirits. Other common additives include isopropyl<unk> , acetone, methyl ethyl ketone, and methyl isobutyl ketone. In the United States, mixtures sold as<unk>  often have less than 50% ethanol. Denaturing<unk>  does not alter the ethanol molecule (chemically or structurally), unlike denaturation in biochemistry. Rather, the ethanol is mixed with other chemicals to form a foul-tasting, often toxic, solution. For many of these solutions, it is intentionally difficult to separate the components.
Denatured alcohol
Dichloroacetic acid
Tetrachlorodecaoxide
Chloroethane
Tetramethyl bisphenol F
Coal tar
Triphenylchloroethylene
Diiodohydroxyquinoline