dead-n
Harmless
Posts: 1
Registered: 29-8-2005
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Steam/Azeotropic Distillation and PH
Hello all!,
Edit* just to make this clear.. What I am calling steam distillation is nothing more then a mixture of product and water being boiled and then
condensed back to liquid.. Not sure this is really called steam distillation, I just don't have an external steam source and all of that going...
back to the post:
I hope this makes sense. I am using a standard water distiller to distill a substance that comes over easily in steam or is it called azeotropic
distillation since what I am distilling would be considered an azeotrope. So long as what I am distilling is under a PH of 6 it seems to come over
into the distillate fine.
Now if I add more tap water to give more steam in the mix to bring over more of this azeotrope it brings over less and less of what I am going for..
I have tried adding acid but it must be too much since it always turns my product that i wish to distill into a black/redish color.
My question is this, does adding water to provide more steam to pull over substances that do come over in steam have any change to the PH of my
product that I am distilling?
And another thing,, the distillate should always be the same PH as whatever it is that I am distilling correct?
I really wish I had a good book covering this but I'm not sure where to look since I have no more chem education other then some high school.
It could have nothing to do with PH and I have gotten all that I can distill out but that would mean my yields must be god awful. Hoping it's bad
distillation knowledge or the fact that I'm using a water distiller instead of a proper distillation apparatus..
Thanks guys!
-DN
[Edited on 26-9-2009 by dead-n]
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Sedit
International Hazard
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Registered: 23-11-2008
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What are you attempting to distill? With out that knowledge it makes it hard for us to help teach you what vapor pressure and hydro/ Co-distillation
is all about.
Im sorry but your talking about PH affecting a substrate we know nothing about.
Knowledge is useless to useless people...
"I see a lot of patterns in our behavior as a nation that parallel a lot of other historical processes. The fall of Rome, the fall of Germany — the
fall of the ruling country, the people who think they can do whatever they want without anybody else's consent. I've seen this story
before."~Maynard James Keenan
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User
Hazard to Others
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Registered: 7-11-2008
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Can you please re-explain whatever you are trying to say, i'm sorry but you dont make any sense at all.
-What do you want.
-What do you have.
[Edited on 26-9-2009 by User]
What a fine day for chemistry this is.
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