Use of ATR-FTIR with D/H Substitution for Assessing Water Uptake in Alkali Perchlorate Matrices

Key Points

• To investigate the impact of cation dependence on water uptake in alkali perchlorate salts using ATR-FTIR and isotopic exchange techniques.
• Used ATR-FTIR spectroscopy for water uptake analysis in alkali perchlorate salts.
• Employed D/H isotopic substitution for enhanced measurement accuracy.
• Conducted experiments at room temperature to assess water dynamics.
• Identified distinct water uptake patterns based on cation types in the studied salts.
• Showed that cation identity significantly influences water absorption capacity.