Effect of ionic interactions on the rates of oxidation of Cu(I) with O2 in natural waters

Virender K. Sharma; Frank J. Millero

doi:10.1016/0304-4203(88)90061-8

Effect of ionic interactions on the rates of oxidation of Cu(I) with O₂ in natural waters

Virender K. Sharma, Frank J. Millero

Ocean Sciences

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The oxidation of Cu(I) in seawater and NaCl solutions has been measured as a function of pH, temperature, ionic strength and the presence of various ions. The strong Cl dependence of the rates has been attributed to the effect of temperature and ionic strength on the oxidation of Cu and CuCl° species. At a fixed Cl concentration, the addition of Mg^2- causes the rate to decrease and the addition of HCO_o causes the rate to increase. The possible causes of these effects are dicussed. The results are used to derive a rate equation valid for most natural waters from 0 to 50°C, I=0-6 M and pH=6-9.

Original language	English (US)
Pages (from-to)	141-161
Number of pages	21
Journal	Marine Chemistry
Volume	25
Issue number	2
DOIs	https://doi.org/10.1016/0304-4203(88)90061-8
State	Published - Oct 1988

ASJC Scopus subject areas

Oceanography
Chemistry(all)
Environmental Chemistry
Water Science and Technology

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title = "Effect of ionic interactions on the rates of oxidation of Cu(I) with O2 in natural waters",

abstract = "The oxidation of Cu(I) in seawater and NaCl solutions has been measured as a function of pH, temperature, ionic strength and the presence of various ions. The strong Cl dependence of the rates has been attributed to the effect of temperature and ionic strength on the oxidation of Cu and CuCl° species. At a fixed Cl concentration, the addition of Mg2- causes the rate to decrease and the addition of HCOo causes the rate to increase. The possible causes of these effects are dicussed. The results are used to derive a rate equation valid for most natural waters from 0 to 50°C, I=0-6 M and pH=6-9.",

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T1 - Effect of ionic interactions on the rates of oxidation of Cu(I) with O2 in natural waters

AU - Sharma, Virender K.

AU - Millero, Frank J.

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N2 - The oxidation of Cu(I) in seawater and NaCl solutions has been measured as a function of pH, temperature, ionic strength and the presence of various ions. The strong Cl dependence of the rates has been attributed to the effect of temperature and ionic strength on the oxidation of Cu and CuCl° species. At a fixed Cl concentration, the addition of Mg2- causes the rate to decrease and the addition of HCOo causes the rate to increase. The possible causes of these effects are dicussed. The results are used to derive a rate equation valid for most natural waters from 0 to 50°C, I=0-6 M and pH=6-9.

AB - The oxidation of Cu(I) in seawater and NaCl solutions has been measured as a function of pH, temperature, ionic strength and the presence of various ions. The strong Cl dependence of the rates has been attributed to the effect of temperature and ionic strength on the oxidation of Cu and CuCl° species. At a fixed Cl concentration, the addition of Mg2- causes the rate to decrease and the addition of HCOo causes the rate to increase. The possible causes of these effects are dicussed. The results are used to derive a rate equation valid for most natural waters from 0 to 50°C, I=0-6 M and pH=6-9.

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