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  • Isolation of organic compounds from mixtures by solvent extraction.

     

    Essays1 Chemistry

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ID number:145560
 
Evaluation:
Published: 05.10.2005.
Language: English
Level: Secondary school
Literature: n/a
References: Not used
Extract

EXPERIMENTAL PROCEDURE:
1. 2.07 g of the mixture of naphthalene and benzoic acid was weighed accurately on a balance. The mixture was then dissolved in 40 ml dichloromethane and the solution was poured into a separatory funnel.
2. 20 ml of aqueous sodium bicarbonate solution was added to the dichloromethane. A stopper was placed on the separatory funnel and was shaken and pressure was frequently released. The 2 liquids separated into clear layers and the lower layer (dichloromethane layer) was tapped into an Erlenmeyer flask. The aqueous layer was placed into a 400 ml beaker. The dichloro…

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