Description

Tetraphenyl Phosphonium Hydroxide is a quaternary phosphonium salt that serves as a powerful organic base and phase-transfer catalyst. This compound is highly valued for its ability to facilitate reactions in both aqueous and organic phases, making it a critical reagent in advanced synthetic chemistry. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries who require a robust, non-nucleophilic base for demanding applications.

Application

• As a phase-transfer catalyst (PTC) in alkylation, esterification, and polymerization reactions.
• As a strong organic base in the synthesis of fine chemicals and active pharmaceutical ingredients (APIs).
• In the production of epoxy resins and other thermosetting polymers as a curing catalyst.
• For the extraction and purification of certain metal ions in analytical and hydrometallurgical processes.
• As a key reagent in the synthesis of ionic liquids and other advanced materials.
• In polymer research for the initiation of anionic polymerization.

Basic Information

Product Name	Tetraphenyl Phosphonium Hydroxide
CAS No.	25826-24-8
Molecular Formula	C24H21OP
Molecular Weight	356.40 g/mol
Synonyms	TPPOH; Tetraphenylphosphonium Hydroxide; Hydroxytetraphenylphosphonium; Phosphonium, tetraphenyl-, hydroxide; Tetraphenylphosphonium Hydroxide Solution; Tetraphenylphosphonium Hydroxide Hydrate
EINECS	Contact for details

Quality Control

Our Tetraphenyl Phosphonium Hydroxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is light-sensitive (store away from light) and is typically supplied in solution; ensure the container is kept tightly sealed to prevent solvent evaporation or absorption of atmospheric carbon dioxide.

Specification

Item	Specification
Appearance	Colorless to pale yellow solution
Identification (IR)	Conforms
Assay (Titration)	≥ 40.0% in H2O or Methanol
Purity (HPLC)	≥ 98.0% (on anhydrous basis)
Water Content (KF)	Contact for details
Chloride (Cl)	≤ 0.1%

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