Publication detail

CONDUCTOMETRY ANALYSIS - BENEFICIAL METHOD FOR DETERMINING THE CHEMICAL COMPOSITION OF ALKALINE SILICATE SOLUTIONS

KALINA, L. BÍLEK, V. FLÍDROVÁ, M. MARKUSÍK, D. TOPOLÁŘ, L. FLÁDR, J.

Original Title

CONDUCTOMETRY ANALYSIS - BENEFICIAL METHOD FOR DETERMINING THE CHEMICAL COMPOSITION OF ALKALINE SILICATE SOLUTIONS

Type

journal article in Web of Science

Language

English

Original Abstract

The study deals with the methodology for determining the chemical composition of alkaline silicate solutions. Nowadays, the most widely used method in industry is titration, using the color change of an acid -base indicator. This technique is very accurate for the determination of the total alkalinity (i.e., Na2O, K2O, or Li2O). However, a problem arises in the determination of the SiO2 content, since the color change of the methyl red indicator is very slow and therefore the equivalence point is unclear. The main aim of this work is to present the benefits of conductometric titration, where the equivalence point is indicated by a sudden change in the conductivity. The applicability of the method was verified with other analytical techniques, such as ICP-OES and gravimetric analyses. Their results confirmed the values of the obtained silicate module (the molar ratio of SiO2 and alkaline oxide) in the cases of sodium, potassium and lithium water glasses. Based on the obtained results, one can say that conductometry is a very promising method providing an accurate, fast and instrumentally undemanding chemical characterization of alkaline silicate solutions, usable even in a manufacturing process.

Keywords

conductometry, titration, chemical composition, alkaline silicate solutions

Authors

KALINA, L.; BÍLEK, V.; FLÍDROVÁ, M.; MARKUSÍK, D.; TOPOLÁŘ, L.; FLÁDR, J.

Released

12. 4. 2024

ISBN

1580-2949

Periodical

Materiali in tehnologije

Year of study

58

Number

3

State

Republic of Slovenia

Pages from

357

Pages to

361

Pages count

5

URL

https://mater-tehnol.si/index.php/MatTech/article/view/1005/336

BibTex

@article{BUT189789,
  author="Lukáš {Kalina} and Vlastimil {Bílek} and Michaela {Flídrová} and David {Markusík} and Libor {Topolář} and Josef {Fládr}",
  title="CONDUCTOMETRY ANALYSIS - BENEFICIAL METHOD FOR DETERMINING THE CHEMICAL COMPOSITION OF ALKALINE SILICATE SOLUTIONS",
  journal="Materiali in tehnologije",
  year="2024",
  volume="58",
  number="3",
  pages="357--361",
  doi="10.17222/mit.2024.1005",
  issn="1580-2949",
  url="https://mater-tehnol.si/index.php/MatTech/article/view/1005/336"
}