alcohol, denatured

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Drinkable alcohol is subject to tax in most countries, and for industrial use it is denatured to render it unfit for consumption by the addition of 5% methyl alcohol (methanol, CH3OH, also known as wood alcohol), which is poisonous. This is industrial rectified spirit. For domestic use a purple dye and pyridine (which has an unpleasant odour) are also added; this is methylated spirit.

Subjects: Medicine and Health.

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