Assessment of a Novel Chemical Analysis Technique to Investigate Cesium in Glass by Developing Cesium Bismuth Iodide

Abstract

The present work aims at qualitative investigation of cesium content present in a glass. A glass comprising (wt%) Cs₂O(30)-SiO₂(35)-Na₂O(7)-SnO₂(4)-Z nO(24) was prepared in a conventional heating furnace. A novel method was developed adopting gravimetric analysis of cesium content in the glass samples using Dragendorff’s reagent, leading to formation of Cs₃Bi₂I₉ crystal (salt). Experimental methods were examined to purify the salt. Qualitative analysis was performed on Cs₃Bi₂I₉ crystal with FESEM-EDX and XRD. Up to ∼93% pure Cs₃Bi₂I₉ could be synthesized. Quantitative studies were performed with standard cesium solution prepared with Cs₂CO₃ with varying compositions of cesium within 1000 to 3000 ppm. Weight of salt produced was concluded to be strongly related to the cesium content present in the glass solution.

GRAPHICAL ABSTRACT

Keywords:

• Cesium bismuth iodide
• Glass
• Estimation of Cs concentration in glass