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

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...

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Main Authors: Bessiere, J., Aroua, M.K.
Format: Article
Published: Canadian Journal of Chemistry-Revue Canadienne De Chimie 1992
Subjects:
TA Engineering (General). Civil engineering (General)
TP Chemical technology
Online Access:http://eprints.um.edu.my/7516/
http://www.nrcresearchpress.com/doi/pdfplus/10.1139/v92-229
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spelling my.um.eprints.75162013-07-25T00:19:02Z http://eprints.um.edu.my/7516/ Electrochemical determination of acid-base and oxidation-reduction properties of concentrated phosphoric-acid solutions progressively neutralized by soda Bessiere, J. Aroua, M.K. TA Engineering (General). Civil engineering (General) TP Chemical technology 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. Canadian Journal of Chemistry-Revue Canadienne De Chimie 1992 Article PeerReviewed 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 http://www.nrcresearchpress.com/doi/pdfplus/10.1139/v92-229 Doi 10.1139/V92-229
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
TP Chemical technology
spellingShingle TA Engineering (General). Civil engineering (General)
TP Chemical technology
Bessiere, J.
Aroua, M.K.
Electrochemical determination of acid-base and oxidation-reduction properties of concentrated phosphoric-acid solutions progressively neutralized by soda
description 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.
format Article
author Bessiere, J.
Aroua, M.K.
author_facet Bessiere, J.
Aroua, M.K.
author_sort Bessiere, J.
title Electrochemical determination of acid-base and oxidation-reduction properties of concentrated phosphoric-acid solutions progressively neutralized by soda
title_short Electrochemical determination of acid-base and oxidation-reduction properties of concentrated phosphoric-acid solutions progressively neutralized by soda
title_full Electrochemical determination of acid-base and oxidation-reduction properties of concentrated phosphoric-acid solutions progressively neutralized by soda
title_fullStr Electrochemical determination of acid-base and oxidation-reduction properties of concentrated phosphoric-acid solutions progressively neutralized by soda
title_full_unstemmed Electrochemical determination of acid-base and oxidation-reduction properties of concentrated phosphoric-acid solutions progressively neutralized by soda
title_sort electrochemical determination of acid-base and oxidation-reduction properties of concentrated phosphoric-acid solutions progressively neutralized by soda
publisher Canadian Journal of Chemistry-Revue Canadienne De Chimie
publishDate 1992
url http://eprints.um.edu.my/7516/
http://www.nrcresearchpress.com/doi/pdfplus/10.1139/v92-229
_version_ 1643688056625037312
score 13.211869

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