Description
Specifications Table
Product Name – Tetraethylammonium bromide, 99+%
Quantity/Pack Size – 2.5KG, 50GR, 250GR, 500GR
Form – Crystalline powder
Grade – 99%+ (HPLC/GC grade)
Application – Electrochemistry, phase-transfer catalysis, ion-pair chromatography
Product Overview
Tetraethylammonium bromide (TEAB), with a minimum purity of 99%, is a high-quality quaternary ammonium salt widely recognized for its stability and solubility in polar solvents. This crystalline powder is synthesized under stringent quality controls to ensure low moisture content and minimal impurities, making it suitable for demanding laboratory applications. The compound’s large organic cation structure facilitates ion-pairing mechanisms, enhancing its utility in electrochemical experiments where precise ionic interactions are critical. Its hygroscopic nature requires careful handling and storage in airtight containers to maintain integrity. The 99%+ grade ensures consistent performance in phase-transfer catalysis, where it acts as a lipophilic catalyst to enable reactions between immiscible phases. Additionally, its compatibility with aqueous and organic solvents broadens its applicability in chromatographic separations, particularly in ion-pair reverse-phase HPLC. The product undergoes rigorous batch testing for heavy metals, residual solvents, and assay confirmation, with certificates of analysis provided for traceability. For researchers requiring reproducible results, this grade of TEAB offers a reliable balance of purity, stability, and functional versatility.
FAQs
1. What is the solubility profile of tetraethylammonium bromide in common lab solvents?
Tetraethylammonium bromide is freely soluble in water (over 100 mg/mL) and polar organic solvents like methanol, ethanol, and acetonitrile. Solubility decreases in less polar solvents such as dichloromethane or hexane.
2. Can this grade be used for electrochemical applications involving non-aqueous electrolytes?
Yes, the 99%+ purity makes it suitable for non-aqueous electrochemical systems, provided the solvent is anhydrous and the compound is dried thoroughly before use to remove trace moisture.
3. What precautions should be taken during storage to prevent degradation?
Store in a tightly sealed container under inert gas (e.g., nitrogen) in a cool, dry place. Avoid exposure to humidity, as the compound is hygroscopic and can absorb moisture over time.
4. Are there any known incompatibilities with other lab reagents?
Tetraethylammonium bromide is incompatible with strong oxidizing agents and should not be mixed with concentrated mineral acids without proper safety measures. Always check compatibility before combining with other chemicals.
5. How does this product compare to tetrabutylammonium bromide in phase-transfer catalysis?
Tetraethylammonium bromide offers faster reaction kinetics in some systems due to its smaller cation size, but tetrabutylammonium bromide may provide better solubility in organic phases for certain applications. The choice depends on the specific reaction requirements.
