(ethyl alcohol, whatcha find in booze
, my friend) which has been rendered unfit
by the addition of bad-tasting and poisonous chemical
s. Waste of perfectly good liquor
, if you ask me. I guess it's supposed to keep those lab technician
s honest (and sober).
Unlike with denatured proteins or DNA, denatured alcohol hasn't been subjected to a process that causes molecular change -- it just has nasty stuff mixed into it.
There is no one additive used in producing denatured alcohol; different suppliers use different recipes. Some use methanol or isopropanol, some use gasoline.
Another name for denatured alcohol, used mostly in the UK and Australia, is methylated spirits, so called because it has methanol mixed in.
Denatured alcohol is the fuel of choice for alcohol lamps.