Description

Tetrabutylphosphonium is a high-purity quaternary phosphonium salt with significant utility as a phase-transfer catalyst and ionic liquid precursor. Its unique structure provides excellent thermal stability and solubility in various organic media, making it a valuable intermediate for advanced chemical synthesis. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking efficient catalytic systems and tailored ionic liquids.

Application

• Phase-Transfer Catalyst (PTC): Widely employed in organic synthesis to facilitate reactions between reagents in immiscible phases, such as alkylations, esterifications, and nucleophilic substitutions.
• Ionic Liquid Synthesis: Serves as a key precursor for the preparation of tetrabutylphosphonium-based ionic liquids, known for their low volatility, high thermal stability, and tunable properties for green chemistry applications.
• Polymerization Catalyst/Additive: Used as a catalyst or stabilizer in the production of engineering plastics and high-performance polymers, including epoxy resins and polycarbonates.
• Electrolyte Component: Incorporated into electrolytes for electrochemical devices, including capacitors and batteries, due to its ionic conductivity and stability.
• Pharmaceutical Intermediate: Utilized in the synthesis of active pharmaceutical ingredients (APIs) where its catalytic properties can improve yield and selectivity in critical reaction steps.
• Extraction & Separation Agent: Applied in liquid-liquid extraction processes for the separation of metals or specific organic compounds in analytical and industrial settings.

Basic Information

Product Name	Tetrabutylphosphonium
CAS No.	15853-37-9
Molecular Formula	C₁₆H₃₆P⁺ (typically associated with bromide or chloride counterions; contact for specific salt form)
Molecular Weight	Contact for details
Synonyms	Tetra-n-butylphosphonium; Phosphonium, tetrabutyl-; Tetrabutylphosphonium cation; TBP; Tetrabutylphosphane; n-Tetrabutylphosphonium ion; Tetrabutylphosphonium salt; Tetrabutylphosphonium halide
EINECS	239-984-4

Quality Control

Our Tetrabutylphosphonium is manufactured under a strict quality management system. Each batch is subjected to rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC/Titration)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.