RoCo® is the only U.S.-based company dedicated exclusively to ionic liquids — high-performance, molecularly tunable salts that enable cleaner, safer, and more efficient technologies across energy storage, catalysis, biotechnology, and advanced materials. As the exclusive North American distributor for IoLiTec Ionic Liquids Technologies GmbH, RoCo® provides access to one of the world’s largest ionic liquid catalogs, backed by U.S.-based logistics, technical expertise, and custom synthesis capabilities.
About RoCo®
RoCo® develops and supplies high‑purity ionic liquids for energy storage, advanced materials, separations, catalysis, and sustainable manufacturing. We are scaling production to meet growing demand by 2026, offering custom‑engineered ionic liquids designed for performance, safety, and environmental impact reduction.
Our combined RoCo® + IoLiTec portfolio delivers one of the most comprehensive ionic liquid offerings in the world—supported by U.S.-based logistics, documentation, and application expertise.
What Are Ionic Liquids?
Ionic liquids are salts that remain liquid below 100°C, composed entirely of ions rather than neutral molecules. They are characterized by near-zero vapor pressure, high thermal stability, wide electrochemical windows, and molecular tunability — making them powerful, customizable alternatives to volatile organic solvents across industrial, research, and energy applications.
Cations (Positively Charged Species)
Common cation families include imidazolium, pyrrolidinium, piperidinium, choline, ammonium, phosphonium, and sulfonium.
Cations influence:
- Viscosity and fluidity
- Thermal and oxidative stability
- Electrochemical window
- Solvation and coordination behavior
- Compatibility with polymers, metals, and electrolytes
Anions (Negatively Charged Species)
Representative anions include TFSI⁻, FSI⁻, PF₆⁻, BF₄⁻, phosphinates, sulfonates, and carboxylates.
Anions determine:
- Hydrophobicity vs. hydrophilicity
- Ionic conductivity
- Chemical and thermal stability
- Metal coordination and extraction selectivity
- Solubility and phase behavior
Molecular Structure & Tunability
Structural tuning allows ionic liquids to be engineered for:
- Lower viscosity and improved mass transport
- Higher ionic conductivity for battery electrolytes
- Tailored polarity for separations
- Enhanced thermal and oxidative stability
- Specific interactions with catalysts, polymers, or biomolecules
This tunability makes ionic liquids “materials by design”—engineered at the molecular level for targeted performance.
Ionic Liquids vs. Traditional Solvents
Ionic liquids offer significant advantages over conventional volatile organic solvents (VOCs) used in industrial chemistry, separations, and energy applications:
| Property | Traditional Organic Solvents | Ionic Liquids |
|---|---|---|
| Vapor Pressure | High (volatile, flammable) | Near-zero (non-volatile, non-flammable) |
| Thermal Stability | Limited (decompose at moderate temps) | Excellent (stable above 300°C) |
| Tunability | Fixed properties per compound | Customizable via cation/anion selection |
| Recyclability | Difficult; often single-use | Recyclable and reusable |
| Electrochemical Window | Narrow | Wide (up to 5–6V) |
| Environmental Impact | VOC emissions, disposal concerns | Reduced emissions, greener processing |
These properties make ionic liquids a preferred choice for applications where safety, performance, and sustainability are critical — including battery electrolytes, catalytic systems, and sustainable manufacturing.
Applications
Energy Storage
RoCo® ionic liquids enable high‑voltage, non‑flammable, and thermally stable electrolytes for lithium‑ion, sodium‑ion, and emerging battery chemistries.
Polymer Composites & Recycling
Our ionic liquids improve composite processing, enhance mechanical performance, and enable efficient chemical recycling of PET, polyamides, and engineered polymers.
Biotechnology & Pharmaceuticals
High‑purity ionic liquids support biocatalysis, selective extraction, purification, and formulation of sensitive pharmaceutical intermediates.
Lubricant Additives
Ionic liquids deliver exceptional friction reduction, wear protection, and thermal stability for automotive, aerospace, and electronics lubrication systems.
RoCo® + IoLiTec: North American Distribution Partnership
RoCo® is the exclusive North American distributor of IoLiTec Ionic Liquids Technologies GmbH, providing customers with:
- Access to one of the world’s largest ionic liquid catalogs
- Reliable regional inventory and shorter lead times
- U.S.-based customer support, documentation, and logistics
- Application expertise across energy storage, catalysis, separations, and materials science
- Custom synthesis and scale‑up pathways through IoLiTec’s global R&D network
This partnership combines European R&D excellence with North American supply‑chain reliability, ensuring consistent quality and dependable delivery for industrial, academic, and government customers.
Procurement & Technical Support
RoCo® provides:
- High‑purity, batch‑consistent ionic liquids with full COA and SDS
- Custom cation/anion combinations tailored to performance targets
- Scalable production from pilot to commercial volumes
- Application‑specific formulations for electrolytes, separations, composites, and catalysis
- Export compliance, cross‑border documentation, and U.S.-based logistics
- Direct access to IoLiTec’s global ionic liquid portfolio
Frequently Asked Questions About Ionic Liquids
What are ionic liquids?
Ionic liquids are salts that remain liquid below 100°C, composed entirely of positively charged cations and negatively charged anions. Unlike traditional molecular solvents, they have near-zero vapor pressure, high thermal stability, and molecularly tunable properties. This makes them versatile, high-performance alternatives for energy storage, catalysis, separations, and advanced materials applications.
What are ionic liquids used for?
Ionic liquids are used as electrolytes in lithium-ion and sodium-ion batteries, green solvents for chemical synthesis and catalysis, lubricant additives for automotive and aerospace systems, media for biomass processing and CO2 capture, and functional agents in polymer composites and pharmaceutical purification.
Are ionic liquids safe?
Ionic liquids are generally considered safer than traditional volatile organic solvents because they have negligible vapor pressure and are non-flammable under normal conditions. However, safety depends on the specific cation–anion combination — some are biocompatible while others require standard chemical handling precautions. RoCo® provides full SDS and COA documentation for every product.
How are ionic liquids different from traditional solvents?
Unlike conventional organic solvents, ionic liquids have virtually no vapor pressure (reducing air pollution and exposure risk), remain thermally stable at high temperatures, offer tunable polarity and conductivity through cation–anion selection, and can be recycled and reused — making them a greener, safer alternative for industrial processes.
What makes RoCo® different from other ionic liquid suppliers?
RoCo® is the only U.S.-based company dedicated exclusively to ionic liquids. As the exclusive North American distributor for IoLiTec GmbH, we offer access to one of the world’s largest ionic liquid catalogs, custom synthesis capabilities, U.S.-based logistics, and expert technical support from experienced chemists.
Can ionic liquids be customized for specific applications?
Yes. By selecting different cation and anion combinations, ionic liquids can be engineered for specific viscosity, conductivity, thermal stability, and solvation properties. RoCo® offers custom synthesis services to design ionic liquids tailored to your exact application requirements, from pilot quantities to commercial-scale production.