Description

Triethylphosphonium Tetrafluoroborate is a versatile organophosphonium salt with significant utility in advanced chemical synthesis. Its primary value lies in its role as a highly effective phase-transfer catalyst and a key reagent for the preparation of Wittig-type ylides and other phosphorus-containing intermediates. This compound is essential for R&D and production chemists in the pharmaceutical, agrochemical, and specialty materials sectors, where it facilitates critical carbon-carbon bond formation and polymerization reactions.

Application

• Phase-Transfer Catalyst (PTC): Employed in organic synthesis to facilitate reactions between reagents in immiscible phases, enhancing reaction rates and yields.
• Wittig Reaction Reagent Precursor: Serves as a starting material for generating reactive phosphonium ylides used in the synthesis of alkenes.
• Polymerization Initiator/Co-catalyst: Used in the production of specialized polymers and resins, including epoxy curing agents.
• Electrolyte Additive: Investigated for use in lithium-ion battery electrolytes to improve stability and performance.
• Ionic Liquid Component: Acts as a cation in the formulation of task-specific ionic liquids for green chemistry applications.
• Pharmaceutical Intermediate: Utilized in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Ligand for Metal Complexes: Functions as a precursor for phosphine ligands used in homogeneous catalysis.
• Surface Modification Agent: Applied in material science for modifying surface properties of inorganic substrates.

Basic Information

Product Name	Triethylphosphonium Tetrafluoroborate
CAS No.	817575-08-9
Molecular Formula	C6H16BF4P
Molecular Weight	182.0 g/mol
Synonyms	Triethylphosphonium Boron Tetrafluoride; Triethylphosphonium Fluoborate; Triethylphosphine Hydrofluoroborate; (Triethylphosphonio)tetrafluoroborate; Et3PH BF4; Tetrafluoroboric Acid Triethylphosphonium Salt; Phosphonium, triethyl-, tetrafluoroborate(1-); Triethylphosphonium Tetrahydrofluoroborate
EINECS	Contact for details

Quality Control

Our Triethylphosphonium Tetrafluoroborate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after use to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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