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Re-using Solvents Options
 
Guest
#1 Posted : 1/9/2009 12:14:04 AM
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Can heptane be re-used.

How many times?
Does the quality/yield decrease with re-use.

Thankyou
 

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benzyme
#2 Posted : 1/9/2009 3:16:13 AM

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non-polar molecules dissolve in heptane, so you'd need to redistill it to recover the pure heptane.
otherwise you'll end up with very impure products
"Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
 
xantus
#3 Posted : 1/9/2009 6:56:18 AM
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you can freeze precip out of heptane at least a few cycles with miniscule amounts of quality loss...
 
Phlux-
#4 Posted : 1/9/2009 7:25:25 AM

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swim cant find heptane - what is it sold as and where - other then a rubber cement thinner - what else can be used.
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Guest
#5 Posted : 1/9/2009 7:56:08 AM
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Photo glue remover..
 
soulman
#6 Posted : 1/9/2009 4:41:39 PM

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Where dya find that? Photography shops?
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benzyme
#7 Posted : 1/10/2009 1:41:34 AM

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"Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
 
 
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