Diffusion Coefficients of Arsenate and Arsenite in Water at Various pH

Diffusion coefficients (D) of arsenite and arsenate at various pH, or degrees of dissociation, were reported by diffusion cell, some values of which are newly reported in this letter. Systematic decrease of D depending on the dissociation of arsenite and arsenate shows that D is closely related to t...

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Bibliographic Details
Published in:Chemistry letters 2011-10, Vol.40 (10), p.1187-1188
Main Authors: Takahashi, Yoshio, Sakamitsu, Mika, Tanaka, Masato
Format: Article
Language:English
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Summary:Diffusion coefficients (D) of arsenite and arsenate at various pH, or degrees of dissociation, were reported by diffusion cell, some values of which are newly reported in this letter. Systematic decrease of D depending on the dissociation of arsenite and arsenate shows that D is closely related to the size of the hydrated ions.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.2011.1187