Tetrabutylammonium Bromide

GTC-624

Phase Transfer Catalysts

Tetrabutylammonium Bromide

CAS No.
1643-19-2
Catalogue ID
GTC-624

Tetrabutylammonium Bromide, CAS 1643-19-2. Source-derived identification, physical data and applications are provided for catalogue reference; request the current specification, COA and SDS for the required grade.

Catalogue aliases / related identifiers

Tetra-n-butylammonium bromide; TBAB; TBABr; N,N,N-Tetrabutylbutan-1-aminium bromide; Butan-1-aminium, N,N,N-tributyl-, bromide; Tetrabutylazanium bromide; Ammonium, tetrabutyl-, bromide

Supplied catalogue source: GTC-624 · Page 59

Reference data — confirm before ordering or use

The information below is a structured migration from the supplied catalogue snapshot. It is not a current product specification, COA or SDS. Confirm the actual supplier, grade, batch documents, classification, packing and destination requirements for your enquiry.


Basic Information of Tetrabutylammonium Bromide

CAS No.:1643-19-2
EC No.:216-699-2
Linear Formula:C₁₆H₃₆BrN
Molecular Weight:322.37
Appearance:White crystalline solid.
Odor:
Melting Point:102-106 °C(lit.
Boiling Point:102 °C
Density:1.039 g/mL at 25 °C
Solubility:Highly soluble in water and many organic solvents (e.g., ethanol, chloroform).
Flash Point:100℃
Stability:Stable under normal conditions.
Purity:Available in high purity grades for sensitive catalytic and electrochemical applications.
Chemical Structure:Molecular Structure of Tetrabutylammonium Bromide

Our commitment to delivering high-purity TBAB ensures a reliable and efficient component for your critical processes, offering consistent quality for diverse synthetic and material science applications.


Primary Applications of Tetrabutylammonium Bromide (TBAB)

Tetrabutylammonium Bromide's unique properties as a lipophilic cation make it a highly versatile reagent with significant applications in various fields:

  1. Phase-Transfer Catalyst (PTC) in Organic Synthesis:

    TBAB is one of the most widely used phase-transfer catalysts. It efficiently transfers inorganic anions or organic anions from an aqueous phase to an organic phase, or from a solid phase to a liquid phase, enabling reactions that would otherwise be slow or impossible between immiscible reactants. This significantly enhances reaction rates, yields, and selectivity in diverse organic transformations such as alkylations, esterifications, oxidations, reductions, and many more.

  2. Electrolyte in Electrochemical Applications:

    Due to its high ionic conductivity and wide electrochemical window, TBAB is commonly employed as a supporting electrolyte in various electrochemical studies, including electro-organic synthesis, cyclic voltammetry, and battery research, particularly in non-aqueous solvent systems.

  3. Precursor for Ionic Liquids:

    TBAB serves as a primary starting material for the synthesis of many ionic liquids, where the bromide anion is exchanged for other anions (e.g., hexafluorophosphate, tetrafluoroborate) to create designer solvents with unique properties for various chemical and industrial processes.

  4. Reagent in Polymer and Material Science:

    It can be used in polymerization reactions as an initiator, co-catalyst, or template. In material science, it finds application in the synthesis of nanomaterials and inorganic compounds, often influencing morphology or crystal structure.

  5. Ion Pairing Agent in Chromatography:

    In analytical chemistry, particularly in liquid chromatography, TBAB is utilized as an ion pairing agent to improve the separation and detection of ionic compounds.

  6. Surfactant and Dispersing Agent:

    In some specific applications, its amphiphilic nature allows it to act as a surfactant or dispersing agent in non-polar media.


  • Exceptional Purity & Consistent Quality: Our Tetrabutylammonium Bromide is manufactured to stringent purity specifications, crucial for achieving optimal performance and reliable results in sensitive catalytic processes, electrochemical research, and ionic liquid synthesis.

  • Expert Technical Support: Our dedicated team of specialists is readily available to offer comprehensive guidance on product application, handling, storage, and optimal usage in your specific chemical processes, ensuring safety and efficiency.

  • Commitment to Quality & Responsible Stewardship: We adhere to the highest industry standards for quality management, environmental responsibility, and product stewardship across all our operations, ensuring peace of mind for our clients and sustainable sourcing practices.

  • Customized Solutions: We understand that different applications may require specific particle sizes or purity levels. We are open to discussing customized solutions to meet your exact requirements.

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