ORGLIST: Re: Nitric Acid Enrichment

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From: antonio regla (areglac$##$yahoo.com)
Date: Mon Jun 12 2000 - 12:02:33 EDT

Dear List Members:

Does anyone know how to enrich 70% nitric acid to obtain fuming nitric acid? I need to use fuming nitric acid to do a nitration of furfural, but we don't have access to fuming nitric acid. My understanding is that transportation of fuming nitric acid is more dangerous and many companies do not sell it because of this. The nitration of furfural is done along with the acetylation of the corresponding acetal, thus protecting the carbonyl group of the aldehyde towards oxidation. I would appreciate if anyone can give me any information about the possibility of enriching regular nitric acid.

Sincerely,

Antonio Regla

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