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Comment by SirHumphrey

3 days ago

That may be country specific, but at least where I live, ethanol is much more expensive than isopropyl alcohol (30€/l vs 10€/l) - mostly because of dues on ethanol.

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SirHumphrey

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hilbert42  3 days ago

Right, if you live where duty is applied to ethanol then it's expensive. In Australia, where I am ethanol is available as a denatured product. That is, it includes a very small amount (much less than 1%) of denatonium (aka Bitrex) which renders it undrinkable (it's the bitterest substance known). As such, excise tax is not levied.

Here, one liter bottles of denatured ethanol are available in every supermarket everywhere, and up to 20 liters available in hardware stores (at bulk rates it's even cheaper).

For comparison, here denatured ethanol costs about $5/l [in US dollars] versus isopropyl at between $25 and $30/l.

  • DebtDeflation  3 days ago

    In the United States, if you buy "Denatured Alcohol" at a big box store, it will be a toxic brew of often 50-60% methanol as well as smaller amounts of MEK, MIBK, and even acetone in addition to the ethanol. However, you can order "Specially Denatured Alcohol (SDA)" from various chemical suppliers or even Amazon. "SDA 40B 200" will be 99.5% ethanol with 0.1% tert-butyl alcohol and 0.0005% denatonium benzoate. It's what I use for camp stove fuel since I refuse to carry methanol in my pack with food.

    • hilbert42  3 days ago

      I understand the problem with purchasing EtOH in the US. Frankly, I consider adding MeOH, MEK, etc. to denature it as both dangerous and an archaic procedure. (Moreover, outside lab reagents, MeOH should never exist without denatonium, it's just too dangerous.)

      Some people will drink EtOH whether it's denatured with MeOH, etc. or with the much safer denatonium. Why blind or kill these people when one doesn't need to? Sure, EtOH will likely get them anyway but why should the State be their executioner?

      There's something awfully wrong with that I reckon.

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    • AStonesThrow  1 day ago

      I had a recent adventure attempting to replenish my Food Grade 35% Hydrogen Peroxide.

      Amazon wouldn't even ship the stuff here. I'm coming to realize that any truly potent or powerful substance is strictly off-limits in consumer spaces. Plenty of good reasons for that. But such things as pure isopropyl and pure H2O2 are so versatile and tantalizing to have on-hand, rather than household cleaners with proprietary formulas, as much dilution as possible, unique MSDS, and obnoxious fake fragrance.

      I can walk down an entire aisle in the hardware store, chockablock with bottles of household cleaners, and they all amount to 2 or 3 active ingredients, endlessly remixed for credulous homemakers.

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