Quince
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DCM/HNO3 separation
After doing solvent extraction of HNO3 by methylene chloride, I've read the easiest way to separate is to freeze out the HNO3. Since I've no access
to dry ice, I'm wondering if when distilling off the methylene chloride, reducing pressure will improve separation.
\"One of the surest signs of Conrad\'s genius is that women dislike his books.\" --George Orwell
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neutrino
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There was a HUGE amount of discussion over at RS about this method. As I remember, the DCM simply be distilled off.
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Quince
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Well, that still doesn't answer my question. Will reducing pressure improve separation?
\"One of the surest signs of Conrad\'s genius is that women dislike his books.\" --George Orwell
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not_important
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Look up the boiling points of HNO3 and DMC at 1 bar and some reduced pressure. If the low pressure boiling points are further apart that at standard
pressure, then it will probably help. If the boiling points are closer together, then I'd guess that it will hurt the separation. (or vapour
pressures at two different temperatures)
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