Related Experiment Video
Updated: Jul 14, 2026

High Resolution Physical Characterization of Single Metallic Nanoparticles
Published on: June 28, 2019
Potentiometry of effective concentration of polyacrylate as scale inhibitor
Akio Yuchi1, Yasumasa Gotoh, Shinsuke Itoh
1Nagoya Institute of Technology, Graduate School of Engineering, Gokiso, Showa, Nagoya 466-8555, Japan. yuchi.akio@nitech.ac.jp
Abstract:
The concentration of polyacrylate (PA) used as a scale inhibitor was potentiometrically determined with a solid state copper ion-selective electrode after addition of Cu2+ as a probe. While the conventional methods monitor only the total concentration of PA, the proposed method measures the free, "effective" concentration of PA in equilibrium with species like Ca2+ and CaCO3. The slope of a potential response to PA was -40 mV decade(-1) and the limit of detection was 10(-6.3) M (= mol dm(-3)) at a probe concentration of 10(-6) M. The system could be used to control the PA concentration just enough to prevent the scale formation in various circulating water systems.
More Related Videos
Related Concept Videos
Titration of Polyprotic Acids with a Strong Base
Polyprotic Acids
Composition of Polyprotic Acid Solutions as a Function of pH
A graph with the alpha values is plotted against the volume of base added during titration. Here, a...
Titration of Polyprotic Base with a Strong Acid
Titration of a Polyprotic Acid
Complexometric Titration: Ligands

