1-Dodecyl-3-Methylimidazolium Hydrogen Sulfate is a Brønsted acidic ionic liquid used in various industrial applications, particularly in acid-catalyzed reactions such as esterification and biodiesel production. It serves as an effective solvent and catalyst for organic synthesis, enhancing reaction rates, selectivity, and yields in processes like polymerization.

Widely applied in electrochemistry due to its high ionic conductivity and thermal stability, making it suitable for electrolytes in batteries, fuel cells, and electrochemical devices.

Employed in extraction and separation processes, including the recovery of metal ions, organic compounds, bioactive substances from plants, and in oil and gas industry for improving efficiency in separation and purification operations, owing to its tunable solubility and pH adjustment capabilities.

In materials science, it is utilized in the preparation of advanced materials, such as polymers and nanocomposites, acting as a stabilizer, dispersing agent, or template. It also supports green chemistry as an environmentally friendly, recyclable alternative to volatile organic solvents.