Thermodynamics of the dissociation of boric acid in seawater at S = 35 from 0 to 55°C

Rabindra N. Roy; Lakshmi N. Roy; Marcia Lawson; Kathleen M. Vogel; C. Porter Moore; William Davis; Frank J. Millero

doi:10.1016/0304-4203(93)90206-4

Thermodynamics of the dissociation of boric acid in seawater at S = 35 from 0 to 55°C

Rabindra N. Roy, Lakshmi N. Roy, Marcia Lawson, Kathleen M. Vogel, C. Porter Moore, William Davis, Frank J. Millero

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

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Abstract

The stoichiometric dissociation constants of boric acid in seawater at S = 35 have been determined from 0 to 55°C. The constants were determined from electromotive force measurements made with the cell, Pt|H₂ (g, 1 atm)|;borax in synthetic seawater|;AgCl, Ag. The results are discussed in terms of "total" hydrogen ion scale. Our results are in excellent agreement (±0.0004 in ln K^*) with the measurements of Dickson (1990a). This study demonstrates that the measurements made by Dickson (1990a) are more reliable than the earlier measurements (Buch, 1933; Lyman, 1956; Hansson, 1973b) and should be used in all future studies of the carbonate system in seawater.

Original language	English (US)
Pages (from-to)	243-248
Number of pages	6
Journal	Marine Chemistry
Volume	44
Issue number	2-4
DOIs	https://doi.org/10.1016/0304-4203(93)90206-4
State	Published - Dec 1993
Externally published	Yes

ASJC Scopus subject areas

Oceanography
Chemistry(all)
Environmental Chemistry
Water Science and Technology

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10.1016/0304-4203(93)90206-4

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title = "Thermodynamics of the dissociation of boric acid in seawater at S = 35 from 0 to 55°C",

abstract = "The stoichiometric dissociation constants of boric acid in seawater at S = 35 have been determined from 0 to 55°C. The constants were determined from electromotive force measurements made with the cell, Pt|H2 (g, 1 atm)|;borax in synthetic seawater|;AgCl, Ag. The results are discussed in terms of {"}total{"} hydrogen ion scale. Our results are in excellent agreement (±0.0004 in ln K*) with the measurements of Dickson (1990a). This study demonstrates that the measurements made by Dickson (1990a) are more reliable than the earlier measurements (Buch, 1933; Lyman, 1956; Hansson, 1973b) and should be used in all future studies of the carbonate system in seawater.",

author = "Roy, {Rabindra N.} and Roy, {Lakshmi N.} and Marcia Lawson and Vogel, {Kathleen M.} and {Porter Moore}, C. and William Davis and Millero, {Frank J.}",

note = "Funding Information: The chemistryd epartmenatt Drury College acknowledgesth e support of the Petroleum ResearchF und, administerebdy the American Chemical Society ACS-PRF No. 20409-BS-C. Frank J. Millero acknowledgetsh e support of the OceanographicS ection of the National Science Foundation, the Office of Naval Researcha, nd the National Oceanographiacn d AtmospheriAc dministration.",

year = "1993",

month = dec,

doi = "10.1016/0304-4203(93)90206-4",

language = "English (US)",

volume = "44",

pages = "243--248",

journal = "Marine Chemistry",

issn = "0304-4203",

publisher = "Elsevier",

number = "2-4",

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T1 - Thermodynamics of the dissociation of boric acid in seawater at S = 35 from 0 to 55°C

AU - Roy, Rabindra N.

AU - Roy, Lakshmi N.

AU - Lawson, Marcia

AU - Vogel, Kathleen M.

AU - Porter Moore, C.

AU - Davis, William

AU - Millero, Frank J.

N1 - Funding Information: The chemistryd epartmenatt Drury College acknowledgesth e support of the Petroleum ResearchF und, administerebdy the American Chemical Society ACS-PRF No. 20409-BS-C. Frank J. Millero acknowledgetsh e support of the OceanographicS ection of the National Science Foundation, the Office of Naval Researcha, nd the National Oceanographiacn d AtmospheriAc dministration.

PY - 1993/12

Y1 - 1993/12

N2 - The stoichiometric dissociation constants of boric acid in seawater at S = 35 have been determined from 0 to 55°C. The constants were determined from electromotive force measurements made with the cell, Pt|H2 (g, 1 atm)|;borax in synthetic seawater|;AgCl, Ag. The results are discussed in terms of "total" hydrogen ion scale. Our results are in excellent agreement (±0.0004 in ln K*) with the measurements of Dickson (1990a). This study demonstrates that the measurements made by Dickson (1990a) are more reliable than the earlier measurements (Buch, 1933; Lyman, 1956; Hansson, 1973b) and should be used in all future studies of the carbonate system in seawater.

AB - The stoichiometric dissociation constants of boric acid in seawater at S = 35 have been determined from 0 to 55°C. The constants were determined from electromotive force measurements made with the cell, Pt|H2 (g, 1 atm)|;borax in synthetic seawater|;AgCl, Ag. The results are discussed in terms of "total" hydrogen ion scale. Our results are in excellent agreement (±0.0004 in ln K*) with the measurements of Dickson (1990a). This study demonstrates that the measurements made by Dickson (1990a) are more reliable than the earlier measurements (Buch, 1933; Lyman, 1956; Hansson, 1973b) and should be used in all future studies of the carbonate system in seawater.

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VL - 44

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EP - 248

JO - Marine Chemistry

JF - Marine Chemistry

IS - 2-4

ER -

Thermodynamics of the dissociation of boric acid in seawater at S = 35 from 0 to 55°C

Abstract

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