BMIM-PF₆: A Versatile Ionic Liquid for Sustainable Industrial Solutions

At Hainan Sincere Industries Co., Ltd., we specialize in delivering high-performance ionic liquids that redefine industrial efficiency and sustainability. 1-Butyl-3-methylimidazolium Hexafluorophosphate (BMIM-PF6, CAS 174501-64-5) stands at the forefront of this revolution, offering unmatched versatility for applications ranging from environmental remediation to advanced material synthesis.

What is BMIM-PF6?

BMIM-PF6 is a hydrophobic, room-temperature ionic liquid (RTIL) composed of a 1-butyl-3-methylimidazolium cation and a hexafluorophosphate anion. With a molecular formula C₈H₁₅F₆N₂P and molecular weight 284.18 g/mol, it combines low volatility, high thermal stability (>340°C), and excellent solubility in polar and non-polar systems.

Key Industrial Applications

1. Wastewater Treatment & Heavy Metal Removal.
BMIM-PF6 excels as a coagulant for extracting heavy metals (e.g., lead, cadmium) and sulfur compounds from industrial wastewater. Its hydroxyl group facilitates hydrogen bonding with water, enhancing pollutant adsorption efficiency. Studies show its effectiveness in extracting cyanide from gold smelting wastewater with 93.25% efficiency using ion liquid-supported membranes.

2. Green Catalysis & Organic Synthesis.
As a reaction medium, it enables eco-friendly processes such as:
-Friedel-Crafts and Diels-Alder reactions
-Oxidation of aromatic aldehydes (with H₂O₂ as an oxidizer)
-Enantioselective acylation of allylic alcohols (via lipase catalysis).
-Its reusability (>85% recovery rate) reduces costs and environmental impact.

3. Advanced Material Development.
BMIM-PF6 enhances the performance of Carbon nanotube (CNT) composites for electrochemical sensors and Ionic liquid-supported membranes for gas separation and extraction. Also it enhances the performance of Nanoparticle synthesis (e.g., Fe₃O₄, TiO₂) with improved stability.

4. Plasticizer for Polymer Resins.
In the plastics industry, it acts as a superior plasticizer for resins like pentaerythritol acrolein (123 resin). Adding 10% BMIM-PF₆ reduces viscosity by 50% at 50°C and increases fracture elongation to 14.2%, outperforming traditional plasticizers like DEP.

Commitment to Sustainability

BMIM-PF₆’s low volatility and reusability align with circular economy principles. By replacing volatile organic solvents (VOCs), it reduces hazardous emissions and supports industries in meeting ESG goals.