Abstract

The effect of individual and multicomponent additives—water-soluble polymers (polyethylene glycol 400, polypropylene glycol 425, and polyvinylpyrrolidone 3500), sodium nitrate, and 1-methyl-2-pyrrolidone—on the extraction of thiophene in an n-hexane–water system has been studied. It is found that, in most cases, the introduction of small amounts of additives into the extraction system leads to a significant increase in the degree of extraction of thiophene from n-hexane in the aqueous phase in comparison with the individual components.

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