On the Hydrolysis of the Copper(II)Ion, Cu2+, in 3 M (Na)ClO4 Medium at High Copper(II) Ion Concentrations and 25 degrees C.

Néher-Neumann, Erzsébet; Grjotheim, K.; Kvande, Halvor; Maeda, Masunobu; Ohtaki, Hitoshi

doi:10.3891/acta.chem.scand.38a-0517

Cited by 9 publications

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“…In contrast, there are the expected large differences between log 10 K 2°= 5.78, log 10 K 3°= 3.57, and log 10 K 4°= 0.86. In contrast, Cu 2 OH 3+ has been claimed to form only at high [Cu II ] T (0.3 to 0.9 mol dm -3 ) at pH ≤ 3.5 and then to less than 1 % [84NEa]. Its existence has also been postulated by others [72OKa,82BBb,97RSb].…”

confidence: 90%

Chemical speciation of environmentally significant metals with inorganic ligands Part 2: The Cu2+-OH-, Cl-, CO32-, SO42-, and PO43- systems (IUPAC Technical Report)

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Brown

Byrne

et al. 2007

Pure and Applied Chemistry

165

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Complex formation between CuII and the common environmental ligands Cl-, OH-, CO32-, SO42-, and PO43- can have a significant effect on CuII speciation in natural waters with low concentrations of organic matter. Copper(II) complexes are labile, so the CuII distribution amongst these inorganic ligands can be estimated by numerical modeling if reliable values for the relevant stability (formation) constants are available. This paper provides a critical review of such constants and related thermodynamic data. It recommends values of log10βp,q,r° valid at Im = 0 mol kg-1 and 25 °C (298.15 K), along with the equations and specific ion interaction coefficients required to calculate log10βp,q,r values at higher ionic strengths. Some values for reaction enthalpies, ΔrHm, are also reported where available. In weakly acidic fresh water systems, in the absence of organic ligands, CuII speciation is dominated by the species Cu2+(aq), with CuSO4(aq) as a minor species. In seawater, it is dominated by CuCO3(aq), with Cu(OH)+, Cu2+(aq), CuCl+, Cu(CO3)OH-, Cu(OH)2(aq), and Cu(CO3)22- as minor species. In weakly acidic saline systems, it is dominated by Cu2+(aq) and CuCl+, with CuSO4(aq) and CuCl2(aq) as minor species.

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confidence: 90%

Chemical speciation of environmentally significant metals with inorganic ligands Part 2: The Cu2+-OH-, Cl-, CO32-, SO42-, and PO43- systems (IUPAC Technical Report)

Powell

Brown

Byrne

et al. 2007

Pure and Applied Chemistry

165

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show abstract

“…In contrast, Cu 2 OH 3+ has been claimed to form only at high [Cu II ] T (0.3 to 0.9 mol dm -3 ) at pH ≤ 3.5 and then to less than 1 % [84NEa]. Its existence has also been postulated by others [72OKa,82BBb,97RSb].…”

Section: Formation Of Cu 2 Oh 3+ Cu 2 (Oh) 2 2+ and Cu 3 (Oh) 4 2+mentioning

confidence: 89%

Chemical Speciation of Environmentally Significant Metals with Inorganic Ligands. Part 2. The Cu²⁺—OH^‐, Cl^‐, CO₃^2‐, SO₄^2‐, and PO₄^3‐ Systems (IUPAC Technical Report)

et al. 2007

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First Transition Series Metals

2016

Hydrolysis of Metal Ions

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On the Hydrolysis of the Copper(II)Ion, Cu2+, in 3 M (Na)ClO4 Medium at High Copper(II) Ion Concentrations and 25 degrees C.

Cited by 9 publications

References 0 publications

Chemical speciation of environmentally significant metals with inorganic ligands Part 2: The Cu2+-OH-, Cl-, CO32-, SO42-, and PO43- systems (IUPAC Technical Report)

Chemical speciation of environmentally significant metals with inorganic ligands Part 2: The Cu2+-OH-, Cl-, CO32-, SO42-, and PO43- systems (IUPAC Technical Report)

Chemical Speciation of Environmentally Significant Metals with Inorganic Ligands. Part 2. The Cu²⁺—OH^‐, Cl^‐, CO₃^2‐, SO₄^2‐, and PO₄^3‐ Systems (IUPAC Technical Report)

First Transition Series Metals

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On the Hydrolysis of the Copper(II)Ion, Cu2+, in 3 M (Na)ClO4 Medium at High Copper(II) Ion Concentrations and 25 degrees C.

Cited by 9 publications

References 0 publications

Chemical speciation of environmentally significant metals with inorganic ligands Part 2: The Cu2+-OH-, Cl-, CO32-, SO42-, and PO43- systems (IUPAC Technical Report)

Chemical speciation of environmentally significant metals with inorganic ligands Part 2: The Cu2+-OH-, Cl-, CO32-, SO42-, and PO43- systems (IUPAC Technical Report)

Chemical Speciation of Environmentally Significant Metals with Inorganic Ligands. Part 2. The Cu2+—OH‐, Cl‐, CO32‐, SO42‐, and PO43‐ Systems (IUPAC Technical Report)

First Transition Series Metals

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Product

Resources

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Chemical Speciation of Environmentally Significant Metals with Inorganic Ligands. Part 2. The Cu²⁺—OH^‐, Cl^‐, CO₃^2‐, SO₄^2‐, and PO₄^3‐ Systems (IUPAC Technical Report)