Tetramethylammonium hydrogensulfate

Tetramethylammonium hydrogensulfate (TMAHS) is a quaternary ammonium salt commonly used as a catalyst and phase-transfer agent in chemical reactions, particularly in organic synthesis. It also serves as an electrolyte additive in electrochemistry and rechargeable batteries. TMAHS is studied for potential applications in wastewater treatment, gas separation, and fuel cells.