What is EMERALDINE BASE POLYANILINE CAS 5612-44-2?
Emeraldine Base Polyaniline CAS 5612-44-2, commonly known as PANI-EB, is one of the most prominent forms of inherently conducting polymers. It typically appears as a brown to black infusible powder and serves as the non-conducting base form of polyaniline that can be rendered electrically conductive via acid doping.
Due to its excellent environmental stability, tunable conductivity, redox activity, and strong film-forming capabilities, Emeraldine Base Polyaniline is widely utilized in organic electronics, energy storage devices, chemical sensors, and anticorrosive coatings.
Specifications
| Property |
Value |
| Appearance |
Brown to black solid powder |
| Melting Point |
>350 °C |
| Boiling Point |
<82 °C |
| Density |
0.804 g/mL at 25 °C (bulk density: 18.8 lb/cu.ft) |
| Flash Point |
12 °C |
| Solubility |
Soluble in m-cresol and N-methylpyrrolidone (NMP); insoluble in water and common organic solvents |
| Storage Conditions |
Store at 2 °C to 8 °C in a tightly closed container, protected from light |
Features
- Inherently Conducting Polymer: Easily transitions from an insulating base to a conductive state through protonation and doping (e.g., with hydrochloric acid).
- Thermal & Environmental Stability: Highly stable in air up to at least 300 °C, maintaining performance under harsh operating conditions.
- Excellent Film-Forming Properties: Can be dissolved in specific polar solvents like NMP or m-cresol to cast uniform, large-area support films with high mechanical strength.
- Synergistic Composites: Readily combines with nanomaterials such as graphene oxide, carbon fibers, and metal nanoparticles for enhanced electrochemical performance.
Applications
- Organic Electronics & Photovoltaics: Used in the fabrication of field-effect transistors (OFETs), organic photovoltaics (OPVs), light-emitting diodes (OLEDs/PLEDs), and hole-injection layers.
- Energy Storage Devices: Applied as an active electrode material in supercapacitors, fuel cells, and rechargeable batteries.
- Sensors & Actuators: Utilized in ion sensors, chemical sensors, and microelectromechanical systems (MEMS) due to its sensitive redox and conductive responses.
- Corrosion Protection: Employed as an anticorrosive coating layer on metals to prevent oxidation and degradation.
Packaging
Mikem offers flexible packaging options, including 25 kg of fiber drums for liquid products and 15–25 kg PP/PE bags for powder products, all customizable to meet your specific needs.
