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Washing and Extracting Various Things

getting back to extractions, there are really only four classes of compounds that are commonly handled in undergraduate extractions or washings. [Pg.120]

Strong Acids. The mineral acids, and organic acids (e.g., benzoic acid). You usually extract these into sodium bicarbonate solution or wash them with it. [Pg.120]

Really weak acids. Usually phenols, or substituted phenols. Here, you d use a sodium hydroxide solution for washing or extraction. You need a strong base to work with these weak acids. [Pg.120]

Organic bases. Any organic amine (aniline, triethylamine, etc.). As you use bases to work with acids, use a dilute acid (5 to 10% HC1, say) to extract or wash these bases. [Pg.120]

Neutral compounds. All else, by these definitions (e.g., amides, ethers, alcohols, hydrocarbons). [Pg.120]


Washing and Extracting Various Things How To Extract and Wash What... [Pg.378]


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