Determination of carbonate alkalinity and apparent dissociation constants in a multiprotolytic system

Zvi Hai Burbea; Didio Haimovits; Sam Ben-Yaakov

doi:10.1016/0039-9140(85)80115-6

Determination of carbonate alkalinity and apparent dissociation constants in a multiprotolytic system

Zvi Hai Burbea, Didio Haimovits, Sam Ben-Yaakov

Department of Electrical & Computer Engineering

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

Abstract

A method for analysing the carbonate system in a multicomponent solultion is presented, which does not need knowledge of the total composition of the system. It is based on two titrations with acid, starting at the same pH, one of the original solution and the other after removal of carbonate species as carbon dioxide and restoration of the pH to the value for the original solution by addition of carbonate-free base. The differential titration curve, obtained by subtracting one titration curve from the other, is associated with the carbonate system. A procedure is proposed for calculating from the differential titration curve the apparent first and second dissociation constants of carbonic acid, total CO₂ and the carbonate alkalinity at the original pH of the solution.

Original language	English
Pages (from-to)	1023-1026
Number of pages	4
Journal	Talanta
Volume	32
Issue number	11
DOIs	https://doi.org/10.1016/0039-9140(85)80115-6
State	Published - 1 Jan 1985

ASJC Scopus subject areas

Analytical Chemistry

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10.1016/0039-9140(85)80115-6

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title = "Determination of carbonate alkalinity and apparent dissociation constants in a multiprotolytic system",

abstract = "A method for analysing the carbonate system in a multicomponent solultion is presented, which does not need knowledge of the total composition of the system. It is based on two titrations with acid, starting at the same pH, one of the original solution and the other after removal of carbonate species as carbon dioxide and restoration of the pH to the value for the original solution by addition of carbonate-free base. The differential titration curve, obtained by subtracting one titration curve from the other, is associated with the carbonate system. A procedure is proposed for calculating from the differential titration curve the apparent first and second dissociation constants of carbonic acid, total CO2 and the carbonate alkalinity at the original pH of the solution.",

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AU - Burbea, Zvi Hai

AU - Haimovits, Didio

AU - Ben-Yaakov, Sam

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Y1 - 1985/1/1

N2 - A method for analysing the carbonate system in a multicomponent solultion is presented, which does not need knowledge of the total composition of the system. It is based on two titrations with acid, starting at the same pH, one of the original solution and the other after removal of carbonate species as carbon dioxide and restoration of the pH to the value for the original solution by addition of carbonate-free base. The differential titration curve, obtained by subtracting one titration curve from the other, is associated with the carbonate system. A procedure is proposed for calculating from the differential titration curve the apparent first and second dissociation constants of carbonic acid, total CO2 and the carbonate alkalinity at the original pH of the solution.

AB - A method for analysing the carbonate system in a multicomponent solultion is presented, which does not need knowledge of the total composition of the system. It is based on two titrations with acid, starting at the same pH, one of the original solution and the other after removal of carbonate species as carbon dioxide and restoration of the pH to the value for the original solution by addition of carbonate-free base. The differential titration curve, obtained by subtracting one titration curve from the other, is associated with the carbonate system. A procedure is proposed for calculating from the differential titration curve the apparent first and second dissociation constants of carbonic acid, total CO2 and the carbonate alkalinity at the original pH of the solution.

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SP - 1023

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JO - Talanta

JF - Talanta

IS - 11

ER -

Determination of carbonate alkalinity and apparent dissociation constants in a multiprotolytic system

Abstract

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