%0 Journal Article
%T A New Approach to Carbonate Alkalinity
%A Bogus£¿aw Pilarski
%A Anna M. Micha£¿owska-Kaczmarczyk
%A Agustin G. Asuero
%A Agnieszka Dobkowska
%A Monika Lewandowska
%A Tadeusz Micha£¿owski
%J Journal of Analytical Sciences, Methods and Instrumentation
%P 62-69
%@ 2164-2753
%D 2014
%I Scientific Research Publishing
%R 10.4236/jasmi.2014.42009
%X <p style=\"text-align:justify;\">
	<span style=\"font-size:10.0pt;font-family:&quot;\"><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">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 NaHCO</span><sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">3</span></sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\"> + Na</span><sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">2</span></sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">CO</span><sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">3</span></sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\"> and Na</span><sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">2</span></sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">CO</span><sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">3</span></sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\"> + 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 (</span><i><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">¦Ã</span></i><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">).
Moreover, CAM can be used to calculate the dissociation constants (K</span><sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">1</span></sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">,
K</span><sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">2</span></sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">) for carbonic acid and the ionic product of water (K</span><sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">W</span></sub><span style=\"font-family:Verdana;font-size:12px;line-height:1.5;\">)
from a single pH titration curve. The parameters of the related functions are
calculated according to the least squares method.</span></span><span style=\"font-size:10.0pt;font-family:&quot;\"></span>
</p>
%K Carbonate Alkalinity
%K pH Titration
%K Mathematical Modelling
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=47298