Optical ph sensing material prepared from doped sol-gel film for use in acid-base titration

Authors

Ahmad Musa
Tan T.W.

Abstract

An optical pH sensing material has been prepared in this study by using sol-gel technique. Bromothymol blue, bromophenol blue and thymol blue were chosen in this study as acidbase indicators for strong acid-strong base, strong acid-weak base and weak acid-strong base titration, respectively. The results show that these indicators could be successfully entrapped inside the sol-gel film and still maintain its chemical behaviour as in solution. The entrapped acid-base indicators respond well to any pH changes and could be used to determine the end-point of the acid-base titration.

Publication Date

11-26-2017

Recommended Citation

Musa, Ahmad and T.W., Tan (2017) "Optical ph sensing material prepared from doped sol-gel film for use in acid-base titration," ASEAN Journal on Science and Technology for Development: Vol. 18: No. 2, Article 2.
DOI: https://doi.org/10.29037/ajstd.311
Available at: https://ajstd.ubd.edu.bn/journal/vol18/iss2/2