hossein0591
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recovery of polymer from solution
anti-solvent for chlorobenzene
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unionised
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Depends on the polymer.
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Nicodem
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Thread Moved
27-1-2013 at 07:23 |
bfesser
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Rotovap off the chlorobenzene. Use your mouth on the vacuum outlet and suck in, inhaling deeply, to reduce the system pressure. When consciousness
is regained, check for remaining solvent, and repeat as necessary until you're left with pure polymer.
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elementcollector1
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Quote: Originally posted by bfesser  | | Rotovap off the chlorobenzene. Use your mouth on the vacuum outlet and suck in, inhaling deeply, to reduce the system pressure. When consciousness
is regained, check for remaining solvent, and repeat as necessary until you're left with pure polymer. |
Well, let's not advocate suicide by stupidity just yet.
Dear hossein0591,
You've started more than 5 threads on this same subject. The fact that no one has helped you so far likely means that the answer lies within your
grasp; if you'd care to do a simple search, or tell us what polymer you're working with and how you wish to extract it.
Either give us some more information than "anti-solvent for chlorobenzene" (the hell is an anti-solvent?), or work it out for yourself.
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
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Lambda-Eyde
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It's a solvent (in which the desired product is insoluble) which you add to a solution to cause precipitation. Try to add acetone to a solution of
table salt.
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Nicodem
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| Quote: Originally posted by Lambda-Eyde |
It's a solvent (in which the desired product is insoluble) which you add to a solution to cause precipitation. Try to add acetone to a solution of
table salt. |
Your definition is fine, but acetone and solutions of table salt do not mix in all proportions. In many combinations, all you get is a biphasic
(liquid-liquid) or a triphasic mixture (liquid-liquid-solid), so it is not the best example. The phrase "antisolvent" is commonly used in
crystallization process development (for example, in the pharmaceutical industry, but also elsewhere).
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