Understanding the intrinsic properties of a chemical compound is fundamental to its successful application in research and industry. Tetraethylammonium Tetrafluoroborate (TEATFB), identified by CAS number 429-06-1, is a quaternary ammonium salt whose specific characteristics make it valuable in fields ranging from electrochemistry to organic synthesis.

The most commonly reported tetraethylammonium tetrafluoroborate properties begin with its physical appearance. TEATFB is typically described as a white to off-white crystalline powder or crystals. This visual characteristic is a primary indicator of its purity, though further analysis is always recommended for critical applications. Its melting point is also a key property; while some sources cite it as being very high, often exceeding 300°C, others indicate a melting point around 145-148°C. This variation can depend on the specific purity and crystalline form of the sample, underscoring the importance of consistent sourcing.

Solubility is another critical property that dictates TEATFB's utility. It exhibits good solubility in polar organic solvents such as acetonitrile, ethanol, and propylene carbonate. This solubility is vital for its use as an electrolyte in non-aqueous electrochemical systems, where it can freely dissociate to provide charge carriers. While it is sparingly soluble in water and less soluble in non-polar solvents compared to its tetrabutyl counterpart, its solubility profile makes it suitable for a wide array of applications, particularly those involving polar organic media.

Perhaps one of the most significant properties for its electrochemical applications is its electrochemical window. TEATFB offers a broad electrochemical window, meaning it remains stable over a wide range of applied potentials. This characteristic is essential for its function as a supporting electrolyte in processes that require high operating voltages, such as in supercapacitors and certain battery chemistries. The stability of the tetraethylammonium cation and the tetrafluoroborate anion at these potentials contributes to the overall performance and reliability of electrochemical devices.

These fundamental properties – appearance, melting point, solubility, and electrochemical window – collectively define the application scope of TEATFB. Whether it’s being utilized as a CAS 429-06-1 ionic liquid precursor, a component in supercapacitor electrolytes, or a phase transfer catalyst in organic synthesis, a thorough understanding of these intrinsic traits ensures its effective and efficient deployment. For researchers and manufacturers, sourcing high-quality TEATFB from a reliable tetraethylammonium tetrafluoroborate chemical supplier is the first step towards leveraging these advantageous properties.