Extract-Report - Intr.oduction The compounds an...

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Intr.oduction: The compounds in an organic mixture cao often be s€parared using an acid,/base extraction. The e'*"* ififffr,ifi}iTt' acid/tas€ equilibriums and the partition coemcienr of fie compounds. For example, in a solution oforganic compoundq ad,ting a weak base to the mixtne can s€pa.ab a shong acid. The base will oDly reaat with the slrong aci4 which will lbrm a salt and dissolve into the aqueous layer. The aqueous layer can then be separafed a shong acid added and the compound r€stored to its origiDal stale. Mearwhile, the less acidic compormds will remain in the original solution. the Nt"*,0, t,+ usrng extaactiotr. Benzoic Acid: I ,4-Dimethorybenze: 4-t-Butylphenol: ^ ,a '/M i,#\ Erperimentel Procedurc: 3 grams of mixtwe of benzoic acid, I ,4$methorybenze, and 4-t$tylphenol was dissolved in 30 mr' diethyl ether' Benzoic acid was sepat"ated by adding l0 mL of3M aqueous sodium bic€rbonate. The salt dissolved in water and the aqueous layer was separate.d. Likewise, 4,+$tylphenol *as semrated ftom l,a$nethoxybazene by adding l0 ml of aqueous NaOH (two times). To remove t,{D"ethoxybenze fron solutioD, NaCl was adde4 and the ether layer poured ofi. HCI was added to benzoic acid and 4-t$tybhenol to protoDate the compouDds
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Extract-Report - Intr.oduction The compounds an...

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