Copper(II) Carbonate Complexation in Seawater

Robert H. Byrne; William L. Miller

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

Copper(II) Carbonate Complexation in Seawater

Robert H. Byrne, William L. Miller

College of Marine Science

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Abstract

Cupric carbonate and cupric bicarbonate complexation constants were determined in natural seawater and in a variety of synthetic media. The formation constants of CuHCO 3 + , CuCO 3 0 and Cu(CO 3 ) 2 2− at 25°C and zero ionic strength are: log β H 0 = 1.8, log β 1 0 = 6.82 and log β 0 2 = 10.6. Formation constants of these species appropriate to 0.7 molar ionic strength and 25°C are log β H &sim;- 1, log β 1 = 5.73, log β 2 = 9.3. Our results indicate that the inorganic speciation scheme of Cu(II) in seawater is dominated by CuCO 3 0 and that the ternary species, CuCO 3 OH − , is of substantial importance.

Original language	American English
Journal	Geochimica et Cosmochimica Acta
Volume	49
DOIs	https://doi.org/10.1016/0016-7037(85)90153-X
State	Published - Jan 1 1985

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

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@article{41d6c6de0548418d9f58e88b61f7ab05,

title = "Copper(II) Carbonate Complexation in Seawater",

abstract = " Cupric carbonate and cupric bicarbonate complexation constants were determined in natural seawater and in a variety of synthetic media. The formation constants of CuHCO 3 + , CuCO 3 0 and Cu(CO 3 ) 2 2\− at 25\°C and zero ionic strength are: log \β H 0 = 1.8, log \β 1 0 = 6.82 and log \β 0 2 = 10.6. Formation constants of these species appropriate to 0.7 molar ionic strength and 25\°C are log \β H \&sim;- 1, log \β 1 = 5.73, log \β 2 = 9.3. Our results indicate that the inorganic speciation scheme of Cu(II) in seawater is dominated by CuCO 3 0 and that the ternary species, CuCO 3 OH \− , is of substantial importance. ",

author = "Byrne, \{Robert H.\} and Miller, \{William L.\}",

year = "1985",

month = jan,

day = "1",

doi = "10.1016/0016-7037(85)90153-X",

language = "American English",

volume = "49",

journal = "Geochimica et Cosmochimica Acta",

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TY - JOUR

T1 - Copper(II) Carbonate Complexation in Seawater

AU - Byrne, Robert H.

AU - Miller, William L.

PY - 1985/1/1

Y1 - 1985/1/1

N2 - Cupric carbonate and cupric bicarbonate complexation constants were determined in natural seawater and in a variety of synthetic media. The formation constants of CuHCO 3 + , CuCO 3 0 and Cu(CO 3 ) 2 2− at 25°C and zero ionic strength are: log β H 0 = 1.8, log β 1 0 = 6.82 and log β 0 2 = 10.6. Formation constants of these species appropriate to 0.7 molar ionic strength and 25°C are log β H &sim;- 1, log β 1 = 5.73, log β 2 = 9.3. Our results indicate that the inorganic speciation scheme of Cu(II) in seawater is dominated by CuCO 3 0 and that the ternary species, CuCO 3 OH − , is of substantial importance.

AB - Cupric carbonate and cupric bicarbonate complexation constants were determined in natural seawater and in a variety of synthetic media. The formation constants of CuHCO 3 + , CuCO 3 0 and Cu(CO 3 ) 2 2− at 25°C and zero ionic strength are: log β H 0 = 1.8, log β 1 0 = 6.82 and log β 0 2 = 10.6. Formation constants of these species appropriate to 0.7 molar ionic strength and 25°C are log β H &sim;- 1, log β 1 = 5.73, log β 2 = 9.3. Our results indicate that the inorganic speciation scheme of Cu(II) in seawater is dominated by CuCO 3 0 and that the ternary species, CuCO 3 OH − , is of substantial importance.

UR - https://digitalcommons.usf.edu/msc_facpub/1673

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

U2 - 10.1016/0016-7037(85)90153-X

DO - 10.1016/0016-7037(85)90153-X

M3 - Article

VL - 49

JO - Geochimica et Cosmochimica Acta

JF - Geochimica et Cosmochimica Acta

ER -

Copper(II) Carbonate Complexation in Seawater

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