Why isn't N-Propanol (C3H8O, CAS 71-23-8) used for extraction?

Hash and Stuff Extraction
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Am I missing something? Its GRAS but distilled from fusel oils not sugar. Its available in pure form without license. I have to be missing something important here…

https://www.amazon.com/Alliance-Chemical-N-Propyl-Alcohol-Gallon/dp/B07ZJWTP95/

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It’ll require more energy per unit volume both to chill and to evaporate/condense.

But it’s worth a shot.

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I read that it’s good for extracting flavonoids.

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Azeotrope with water is 70% so it will be hard to keep reusing.

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Wasn’t there a reason @Beaker washed medias with iso propanol then dried for these reasons?

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Wouldn’t n-propanol be even more polar than methanol? If you were to go that route I’d imagine isopropyl would be a better choice

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That being said wouldn’t it be more effective for a LLE then Methanol?

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N propanol is not more polar than methanol… I don’t know why you’d say that. It should have properties intermediate between ethanol and iso.

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I suppose it might be depending on which way you are going. Winterize in n-propanol and LLE to heptane might be a good process

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Yep I goofed that up lol. Cheerfully retracted

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or what about Propene?

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Its more polar than ethanol and takes more energy to evaporate, it would have to be significantly cheaper than our usual solvents to be an attractive alternative.

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Propane is also know as propylene and makes up 30-60% of the “Propane” you get from the gas station. Where I’m at the dominant brand is Blue Rhino and it contains about 50% propene.

I’ve been meaning to deodorize some gas station propane and see if the increased polarity of propene can be successfully negated by a subzero extraction. It could be an econonical solution for folks in remote areas who have to buy tanks of butane shipped.

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Different molecule. Propane is C3H8 as opposed to N-Propanol C3H8O. Propene is C3H6…

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PropENE is prolly expensive af

Edit: just checked. It is not expensive af and as @ScoobyDoobie mentioned it’s pretty much mixed w propane and sold as propane.

Who knew!

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I know this is silly, but I’m still pursuing a temperature range fix for countertop water dispensers. N-Propanol has a boiling point of 97c and water at 100c. They both boil away and re-condense at nearly the same rate so this is a better match that using ethanol in the machine. Ethanol (evreclear 190 proof) is $75 a gallon here in Oregon, N-Propanol is $42, big savings…

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The separation of propane from propene is one of the most ( I actually think its the most) energy intensive processes in the petrochemical industry. Its essentially treated as a waste stream so naturally its cheap.

This is precisely the reason I wanted to explore the idea, but propylene’s tendency to polymerize had me a little spooked. Could you maybe explain my unfounded fears away?

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Hmm… Just stumbled across this - Oregon removed Butanol, Propanol, and Ethanol from the list of chemicals to be tested. This was in 2016 as a temporary move till their regulations settled. 2017 final regulations left the three off the testing list…
https://www.oregon.gov/oha/PH/DISEASESCONDITIONS/CHRONICDISEASE/MEDICALMARIJUANAPROGRAM/Documents/rules/333-007-0410-Exhibit-A-eff-05-31-17.pdf

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ScoobyDoobie, Actually, I did some testing on Methanol. I got a quote from a local distiller for $5 a gallon. Problem is, minimum order is a 55 gallon poly drum. Can’t quite store that in the shed out back… Here’s the thread on Methanol -

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How does adding an aliphatic carbon make a molecule more polar