Tributyltetradecylphosphonium chloride, CAS: 81741-28-8

Key Applications:

Catalysis & Organic Synthesis

• Functions as a phase‑transfer catalyst for nucleophilic substitutions, condensations, and alkylation reactions in biphasic systems.
• Enhances reaction rates in aqueous–organic transformations due to its high interfacial activity.
• Useful in ionic‑liquid‑assisted synthesis where hydrophobic cations improve solubilization of nonpolar substrates.

Surfactant & Formulation Science

• Acts as a cationic surfactant with strong adsorption to negatively charged surfaces.
• Supports emulsion stabilization, micelle formation, and dispersant systems in industrial formulations.
• Enables controlled aggregation behavior in colloid and interface studies.

Antimicrobial & Biocidal Systems

• Long‑chain phosphonium cations exhibit broad-spectrum antimicrobial activity, making this compound suitable for research into disinfectant formulations, biofilm disruption, and surface‑active biocides.
• Used in evaluating structure–activity relationships of quaternary phosphonium antimicrobials.

Polymer & Materials Modification

• Serves as a compatibilizer or ionic additive in polymer matrices to tune conductivity, surface charge, and mechanical properties.
• Supports fabrication of ionically functionalized coatings, membranes, and composite materials.
• Useful in surface treatment studies where cationic adsorption modifies wettability or adhesion.

Electrochemical & Ion‑Transport Studies

• Investigated as a supporting electrolyte or ionic dopant in electrochemical systems requiring hydrophobic, thermally stable cations.
• Contributes to ion‑transport mechanisms, double‑layer behavior, and interfacial charge studies in aqueous and mixed‑solvent environments.

Extraction & Separation Processes

• Acts as a hydrophobic ionic liquid extractant for metal ions, organics, and hydrophobic species.
• Supports development of task‑specific ionic liquid extraction systems where long‑chain phosphonium cations enhance selectivity and phase separation.

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