Electrochemical determination of acid-base and oxidation-reduction properties of concentrated phosphoric-acid solutions progressively neutralized by soda

Bessiere, J. and Aroua, M.K. (1992) Electrochemical determination of acid-base and oxidation-reduction properties of concentrated phosphoric-acid solutions progressively neutralized by soda. Canadian Journal of Chemistry-Revue Canadienne De Chimie, 70 (6). pp. 1843-1848. ISSN 0008-4042

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Abstract

Acid-base properties in 7 M H3PO4 medium neutralized by soda are characterized with an R(H) acidity function and R(H2PO4-), R(HPO42-), R(PO43-) basicity functions, which respectively represent the H+ activity in these media and their ability to donate H2PO4-, HPO42-, PO43- ions. The acidity level of these media (Na/P = 0.0-1.6), changes from R(H) = -2.7 to R(H) = +7.5. The accessible potential domain for the media studied is close to 1. 23 V. Activities of these solutions in water vary between 0.66 and 0. 8 1. The ranges of electroactivity for platinum, carbon, and mercury electrodes are also determined.

Item Type: Article
Additional Information: Jr097 Times Cited:1 Cited References Count:27
Uncontrolled Keywords: Solvation Properties, Media.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 25 Jul 2013 00:19
Last Modified: 25 Jul 2013 00:19
URI: http://eprints.um.edu.my/id/eprint/7516

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