JASMI  Vol.4 No.2 , June 2014
A New Approach to Carbonate Alkalinity
ABSTRACT

The article provides experimental data applied to the determination of carbonate alkalinity (CAM) according to modified Gran II functions. CAM is related to the mixtures NaHCO3 + Na2CO3 and Na2CO3 + NaOH. In addition to the determination of equivalence volumes, one of the main novelties of the proposed method is the possibility of determining the activity coefficient of hydrogen ions (γ). Moreover, CAM can be used to calculate the dissociation constants (K1, K2) for carbonic acid and the ionic product of water (KW) from a single pH titration curve. The parameters of the related functions are calculated according to the least squares method.


Cite this paper
Pilarski, B. , Michałowska-Kaczmarczyk, A. , Asuero, A. , Dobkowska, A. , Lewandowska, M. and Michałowski, T. (2014) A New Approach to Carbonate Alkalinity. Journal of Analytical Sciences, Methods and Instrumentation, 4, 62-69. doi: 10.4236/jasmi.2014.42009.
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