CHEM 212 Lecture Notes - Sodium Hydroxide, Solvent, Organic Compound
21 Nov 2012
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Document Summary
Solvent extraction is a method to separate mixtures of organic acids, bases, and neutral compounds by use of an organic solvent. It is used to treat soils with organic contaminants such as halogenated solvents and petroleum wastes and is generally used with other technologies such as solidification/stabilization, incineration, or soil washing. The yield for benzoic acid and 9-fluorenone are average, however a lot of the ethyl 4-aminobenzoate was lost as only a 40% yield was achieved. The melting points of benzoic acid and ethyl 4-aminobenzoate are quite close to the literature value, however for 9-fluorenone is quite low, indicating impurities in the sample. When isolating the acid or base component some of the product may have still stayed dissolved in the solution and not precipitated. Some of the drying agent may have gotten into the 9-fluorenone and ether solution, and thus added to the yield and caused a lower melting point.
