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The revised potential – pH diagram for Pb – H2O system

Authors
  • Nikolaychuk, Pavel Anatolyevich
Type
Published Article
Journal
Ovidius University Annals of Chemistry
Publisher
Sciendo
Publication Date
Aug 22, 2018
Volume
29
Issue
2
Pages
55–67
Identifiers
DOI: 10.2478/auoc-2018-0008
Source
De Gruyter
Keywords
License
Green

Abstract

Thermodynamic properties of lead species in aqueous solution are collected. The chemical equilibria between various forms of Pb(II) are considered. The speciation diagrams for the equilibria 4[PbOH]+(aq) ⇄ [Pb4(OH)4]4+(aq) and 2[Pb3(OH)4]2+(aq) ⇄ [Pb6(OH)8]4+(aq), and the thermodynamic activity - pH diagram of Pb(II) species are plotted. Basic chemical and electrochemical equilibria for lead are calculated. The potential - pH diagram for Pb - H2O system is revised.

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