Adsorption of Diclofenac Sodium from Aqueous Solutions
on Expanded Graphite

M. D. Vedenyapina, D. A. Borisova, A. P. Simakova, L. P. Proshina, and A. A. Vedenyapin

Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninskii pr. 47, Moscow, 119991 Russia

e-mail: mvedenyapina@yandex.ru

Received June 29, 2012

Abstract—The adsorption of a diclofenac sodium medicine from aqueous solutions of different concentrations
on expanded graphite, which was obtained as a result of the thermal treatment of graphite with perchloric acid,
was studied. The recovery of diclofenac sodium from aqueous solution on expanded graphite was as high as
98–99%.

DOI: 10.3103/S0361521912060134

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