Denatured Alcohol(SDS)

Denatured Alcohol(SDS) or Methylated Spirits is ethanol that has additives to make (poisonous, extremely bad tasting, foul smelling or nauseating), to discourage recreational consumption. In some cases it is also dyed. Denatured alcohol is used as a solvent and as fuel for spirit burners and camping stoves. Because of the diversity of industrial uses for denatured alcohol, hundreds of additives and denaturing methods have been used. The main additive has traditionally been 10% methanol, giving rise to the term "methylated spirits". Other typical additives include isopropyl alcohol, acetone, methyl ethyl ketone,methyl isobutyl ketone, denatonium Denaturing alcohol does not chemically alter the ethanol molecule. Rather, the ethanol is mixed with other chemicals to form an undrinkable solution.

Common Uses

    • As a fuel for marine and ultra-light camping (backpacking) stoves.
    • To pre-heat the vaporizing tubes on a wickless kerosene stove.
    • As a cleaning aid in removing ink stains from upholstery or clothes.
    • As a cleaner in daily housekeeping

  • Purpose

    Denatured alcohol is not, in itself, a preferred product — that is, it is not something that would be normally demanded if given the alternative of normal ethanol. Denatured alcohol and its manufacture are a public policy compromise. The supply and demand for denatured alcohol arises from the fact that normal alcohol (which in everyday language refers specifically to ethanol, suitable for human ingestion as a recreational drink or extractive medium for medicinal tinctures) is usually very expensive in comparison with similar chemicals, being highly taxed for revenue and public health policy purposes.


    Different additives are used to make it difficult to use distillation or other simple processes to reverse the denaturation. Methanol is commonly used both because its boiling point is close to that of ethanol and because it is toxic. Another typical denaturant is pyridine. Often the denatured alcohol is dyed with methyl violet

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