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Topic: Salting out and distillation  (Read 5050 times)

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Offline Cheese_Burgers

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Salting out and distillation
« on: December 21, 2014, 02:24:13 PM »
I recently discovered that you can salt out ethanol with K2CO3. Say you do this in a RB...could you then distill as an azeotrope? just curious.
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Offline billnotgatez

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Re: Salting out and distillation
« Reply #1 on: December 21, 2014, 03:55:44 PM »
RB?
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Offline Zyklonb

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Re: Salting out and distillation
« Reply #2 on: December 23, 2014, 07:01:37 PM »
RB=RBF?
Yes you could. But you could do that without salting it out. Also, you can get better than azeotropic ethanol if you use MgSO4 (anhydrous) to dehydrate and then distill, just saying.
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Offline billnotgatez

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Re: Salting out and distillation
« Reply #3 on: December 23, 2014, 08:48:18 PM »
Round-bottom flask?
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Offline Zyklonb

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Re: Salting out and distillation
« Reply #4 on: December 23, 2014, 09:47:52 PM »
That's my guess, and yes that's what I use "RBF" for.
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Offline jarrod0987

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Re: Salting out and distillation
« Reply #5 on: December 27, 2014, 08:00:11 PM »
Fascinating. I have recently discovered salting out myself. Is MgSO4 hard to get? I can;t remember now but it seems like I have heard that compound around somewhere before. Also..Would this turn the distillation into more of a simple distillation vs the fractional one usually required?

Just curios. I think this concept is so cool.
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Offline billnotgatez

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Re: Salting out and distillation
« Reply #6 on: December 27, 2014, 09:08:24 PM »
@jarrod0987
http://en.wikipedia.org/wiki/Magnesium_sulfate
If you do not know that MgSO4ยท7H2O is commonly called Epsom salt
Then you need to do a lot more reading before doing an experiment.
Safety first
We want you to return healthy
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Offline jarrod0987

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Re: Salting out and distillation
« Reply #7 on: December 29, 2014, 03:02:29 AM »
LOL, Embarasing. I knew I heard it somewhere. Was tired yesterday. I thing EPSOM salts are pretty safe. Besides...where is your spirit of adventure :) (Kidding)
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Offline billnotgatez

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Re: Salting out and distillation
« Reply #8 on: December 29, 2014, 03:19:54 AM »
@jarrod0987
When I did sky diving and had to pack my own chute, I did it very carefully.
I think you can draw the parallel with chemistry yourself.
 :)
« Last Edit: December 29, 2014, 03:29:59 AM by billnotgatez »
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Offline jarrod0987

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Re: Salting out and distillation
« Reply #9 on: December 31, 2014, 01:30:16 AM »
So after much reading It turns out this doesn't work very well. So I decided to pass. I decided just to run with ISO and some sea salt I had on hand. First time worked like a dream. It was so much fun that I decided to add some water back and try again just for fun. I was too lazy to hook up my RO DI and so I used tap water. Got a 3rd layer in between that looked kind of like bubbles of milk. I suspect this is the calcium from the tap water. Also the Alkalinity. Bicarbonates perhaps? Am I right?
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Offline billnotgatez

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Re: Salting out and distillation
« Reply #10 on: December 31, 2014, 02:20:52 AM »
I did a GOOGLE on
what is in tap water
and got lots of hits to include
WIKI
http://en.wikipedia.org/wiki/Tap_water
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Offline Zyklonb

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Re: Salting out and distillation
« Reply #11 on: January 02, 2015, 07:12:38 PM »
What doesn't work well?
Epsom salts are the hydrated form of magnesium sulfate and will not work.
They can easily be dehydrated in the oven at over 150 degrees C though.
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