Fuel mix ethanol/isopropanol?

Discussion in 'Stove Forum' started by Dr_Rob, Nov 20, 2015.

  1. z1ulike

    z1ulike United States SotM Winner SotY Winner Subscriber

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    Huh?

    Clean Strip Green.jpg

    $7.25 per gallon here.
     
    Last edited: Nov 23, 2015
  2. Ray123

    Ray123 Subscriber

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    You do realize 32 ounces equals 1 quart right?
     
  3. geeves

    geeves New Zealand Subscriber

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  4. bem1965 Sweden

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    Hej DrRob,

    What is usually sold as "Rödsprit" here in Sweden is usually a mix of isopropanol and ethanol, the mix is stated in the "säkerhetsdatablad" (Safetysheet?), as you can find at the sellers website.
    A mix of 0-30 % isopropanol (Propan-2-ol) to 70-95 % ethanol.

    If I could get a 70/30 mix for free I would just fill my bottles (a few litres here and a few litres there).

    I have found that the mix they sell at Biltema gives less soot than the one sold by Jula, the mix from Jula states that it is only ethanol....

    Burn away!
    Lars
     
  5. shagratork

    shagratork United Kingdom Moderator, R.I.P. Subscriber

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    32 fl oz (US) = 1 quart (US)
     
  6. itchy

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    I am using up the last of some denatured alcohol currently that smelled strongly of ketones. And that is the problem with denatured alcohol in the states -- odd as it seems in our litigious nanny state, pretty much anything that is toxic can, and must, be added to alcohol to make it legal to sell without the alcohol tax (with few exceptions). It is usually not too hard to find the MSDS for most brands and that can be informative. Most hardware store brands are mostly a mixture of ethyl and methyl alcohol, but it can contain isopropyl and other long chain alcohols, ketones, and even gasoline. E85, for example, is denatured alcohol.

    Note that even the "Green" version of Klean-Strip has something else in it. The bigger joke, for those who buy into the "green" nonsense, they appear to be paying extra for what is probably 5-15% water.

    For Klean Strip Denatured alcohol

    Hazardous Components (Chemical Name)

    Ethyl alcohol {Ethanol} 30.0 -50.0 %

    Methanol {Methyl alcohol; Carbinol; Wood alcohol} 40.0 -60.0 %


    Additional Chemical Information Specific percentage of composition is being withheld as a trade secret


    Klean Strip Green Denatured alcohol

    Ethyl alcohol {Ethanol} 80.0 -90.0 %

    Methanol {Methyl alcohol; Carbinol; Wood alcohol} < 5.0 %

    Acetic acid, ethyl ester {Ethyl acetate} 1.5 %


    Additional Chemical Specific percentage of composition is being withheld as a trade secret.
     
    Last edited: Nov 23, 2015
  7. itchy

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    On further thought, and having had a second cup of coffee, I think I would give the green version more credit. It could just be a less highly refined version of ethanol that is 95% with 5% water (the best you can do with distillation) to which some methanol has been added. The 1 or 2% acetic acid/acetate is likely a residual contaminant from the distillation process.
     
  8. z1ulike

    z1ulike United States SotM Winner SotY Winner Subscriber

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    Ben, you're an idiot. Now write this 10 times on the board:

    I will not post or bid on stoves after having a martini.
    I will not post or bid on stoves after having a martini.
    I will not post or bid on stoves after having a martini.
    I will not post or bid on stoves after having a martini.
    I will not post or bid on stoves after having a martini.
    I will not post or bid on stoves after having a martini.
    I will not post or bid on stoves after having a martini.
    I will not post or bid on stoves after having a martini.
    I will not post or bid on stoves after having a martini.
    I will not post or bid on stoves after having a martini.

    32 oz in a quart, 128 oz in a gallon....got it.

    Ben
     
  9. z1ulike

    z1ulike United States SotM Winner SotY Winner Subscriber

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    I don't think Klean Strip Green contains any water. According to THIS it contains:

    Ethanol - 85-90%
    Methanol - <=5%
    Isopropylacetone - <3%
    Ethyl acetate <2%
    Heptane <2%

    I don't know about Ethyl acetate or Heptane but Isopropylacetone burns pretty clean.

    Ben
     
  10. Ed Winskill

    Ed Winskill United States Subscriber

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    In recent times its been Kleen Strip regular.
     
  11. Ray123

    Ray123 Subscriber

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    Hi Ben,
    I bet a martini is at least 50% ethanol.
    Sorry for my terse reply. Wasn't sure if you were trying to start a fight. It would be great if we could get 90% ethanol denatured for $7.25 a gallon. Maybe 10 or 15 years ago it was possible.
    I actually contacted W.M. Barr, makers of the Klean Strip chemical line and asked if the "green" was available in gallons and they said no, quarts only at this time.

    Geeves, I always knew British Imperial gallons were bigger than our US gallons but didn't knew the difference was that much. Thanks for that knowledge. Does that mean you get 20 oz pints at your local pub?


    Ray
     
  12. itchy

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    Ben, now I want a martini tonight.

    It looks like you and I found different data sheets; the one I used was more current (04/22/2015). Not that that means much if they have to update them that often.

    http://www.kleanstrip.com/uploads/documents/QKGA75003_SDS-1623.pdf

    Good illustration of how difficult it is to know what we might be burning. But I really liked this oddity in the one you found: <2% heptane! Hopefully, much less. Why the H would there be any Heptane in "Green" alcohol? Don't they claim this stuff is new-age natural bio-caca make from organic GMO-free something?

    Anyhow, I suspected some water because the numbers given don't fully add up: If it is 80-85% ethanol (lower limits for the two different data sets) and all the others are upper limit, we come up a little short. I would guess that water may not have to be listed since it is usually not hazardous. Also, it is just difficult to keep alcohol dry and probably not worth the effort if it is going to be used as fuel -- which appears to be the point of the green stuff.
     
  13. Ray123

    Ray123 Subscriber

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    They call it "green" because of the higher ethanol content and the ethanol is grain alcohol probably fermented from corn. Therefore "natural" and "green". Since they've been adding ethanol to our gasoline the methanol content of denatured has been on the rise with today's product very different from only a few years ago. The lower cost methanol addition keeps the price steady too. I'd bet Green Klean Strip is the same formulation as the denatured alcohol of 15 or 20 years ago. Still probably has more poison than the bio-ethanol that people use for the indoor table top fireplaces.
     
  14. z1ulike

    z1ulike United States SotM Winner SotY Winner Subscriber

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    Yea, that's why I'm not too keen on just buying any old can of denatured alcohol. I too was surprised to see heptane listed as an ingredient. Probably burns cleanly enough though.

    For the second time I stand corrected and I didn't even have a martini this time. I'm slipping for sure. Klean Strip Green probably contains at least 4.4% water. You can't get above 95.6% ethanol (191.2 proof) through distillation alone. Getting that last bit of water out is expensive. Sigma-Aldrich chemical company sells 100% (200 proof) alcohol to the scientific community for $109.50 per liter.

    If you're in a state that sell 190 proof Everclear that's probably best fuel ever. A little alcohol for the stove, a little for daddy, and nobody cares if the food burns!

    Everclear.JPG

    Ben
     
  15. shagratork

    shagratork United Kingdom Moderator, R.I.P. Subscriber

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    It just shows how we live and learn on CCS.

    As far as I knew, 100% alcohol was always 175 proof.
    But after a little reading, it is evident that the US do not use the same formula for proof that the UK uses.
    I am not sure what other countries use, but everyone will understand that 190 proof is 95% ABV - which is incredible!

    Ben, as you suggested, I understand it is banned is some US states.
     
  16. itchy

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    Hi Ray,

    There is currently a surplus of ethanol and that is why those companies are begging our feds to up the % that can be added to gasoline from 10 to 15%.

    I maintain that that economics of ethanol production is all out of wack due to the biofuel mandates. Why should adding 10% ethanol to a 2$ gallon of gasoline lower its already low cost while we have to pay $15 a gallon for stuff cut with methanol? It is not all due to distribution costs because alcohol cannot be added to gasoline until late in the distribution process. It is completely phony economics resulting from huge subsidies and penalties that make it profitable for the oil companies to buy expensive (and environmentally harmful) ethanol to dilute otherwise good gasoline.
     
  17. itchy

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    I remember that "proof" had something to do with how much water could be mixed with the alcohol before the resulting mixture would quench a black powder ignition test.

    I wonder how drunk you would have to be to do that?
     
  18. Jeopardy

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    @Ray123 we do indeed sup on 20oz pints down at our local pubs, inns and bars.

    @shagratork the UK definition of proof spirit was the minimum concentration needed to allow gunpowder to ignite when the beverage of choice was mixed with it. It made for an easy and instant test for the customs men in the days of matchlock / flintlock pistols and muskets. If memory serves me correctly that's about 57% by volume and so 100% ethanol would be 175 (degrees) proof.
     
  19. shagratork

    shagratork United Kingdom Moderator, R.I.P. Subscriber

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    I remember years ago in the UK that spirits were generally 70 degrees proof.
    The 'magic' formula was 'four-sevenths'.
    So when the UK swapped over to % ABV (Alcohol By Volume), the labels changed to 40%.
     
  20. Tony Press

    Tony Press Australia Subscriber

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    @z1ulike

    It would be much less of a problem if the U.S. used international standard of measures. I grew up with Imperial measures, but Australia converted in the last quarter of the last century (we had previously coveted our currency to decimal)...

    Cheers

    Tony