paxx
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Solvent Purification
Wondering if someone could part with a few tips on purifying industrial grade OTC solvents for lab use. Is a drying agents and distilling enough?
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starman
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You need to be more specific.Vogels(forum library) has a fair selection of purification methods for tech grade solvents.
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DrP
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Yea - it really does depend on what you are using and what you are using it for. If you're ultra sensitive about moisture and even trapped air/oxygen
then drying as you said with one of the powders or sodium wire, distillation and then degass by bubbling Nitrogen or even Argon through before
undertaking the reaction.
\"It\'s a man\'s obligation to stick his boneration in a women\'s separation; this sort of penetration will increase the population of the younger
generation\" - Eric Cartman
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Klute
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If you are talking about technical grade solvents, and not mixtures, than yes dessicant and distillation, or distillation over dessicant when
appropriate, furnishes solvents of pure enough grade for most reactions.
You can perform the distillation under inert atmosphere for obtaining deoxygenated solvents, but for most amateur applications this is more than
enough.
See Perrin's "Purification of Laboratory Chemicals" for details for each solvent, very good book availble on the forum (5th edition provided by
Fleaker IIRC).
\"You can battle with a demon, you can embrace a demon; what the hell can you do with a fucking spiritual computer?\"
-Alice Parr
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