Copper(II) Carbonate Complexation in Seawater

Authors

Robert H. Byrne, University of South FloridaFollow
William L. Miller, University of South Florida

Document Type

Article

Publication Date

1985

Digital Object Identifier (DOI)

https://doi.org/10.1016/0016-7037(85)90153-X

Abstract

Cupric carbonate and cupric bicarbonate complexation constants were determined in natural seawater and in a variety of synthetic media. The formation constants of CuHCO₃⁺, CuCO₃⁰ and Cu(CO₃)₂²⁻ at 25°C and zero ionic strength are: log β_H⁰ = 1.8, log β₁⁰ = 6.82 and log β⁰₂ = 10.6. Formation constants of these species appropriate to 0.7 molar ionic strength and 25°C are log β_H ∼- 1, log β₁ = 5.73, log β₂ = 9.3. Our results indicate that the inorganic speciation scheme of Cu(II) in seawater is dominated by CuCO₃⁰ and that the ternary species, CuCO₃OH⁻, is of substantial importance.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

Geochimica et Cosmochimica Acta, v. 49, issue 8, p. 1837-1844

Scholar Commons Citation

Byrne, Robert H. and Miller, William L., "Copper(II) Carbonate Complexation in Seawater" (1985). Marine Science Faculty Publications. 1673.
https://digitalcommons.usf.edu/msc_facpub/1673