Description

Tetraoctylphosphonium Hydroxide Solution, ~20% In Methanol is a quaternary phosphonium salt solution that serves as a powerful, non-nucleophilic organic base. This compound matters for applications requiring a strong base in non-aqueous or phase-transfer catalysis systems, where traditional inorganic hydroxides are ineffective. It is primarily needed by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for synthesis, catalysis, and as an analytical reagent.

Application

• Phase-Transfer Catalyst (PTC): Facilitates reactions between reagents in immiscible phases, crucial for alkylation, esterification, and polymerization processes.
• Organic Synthesis Reagent: Acts as a strong, non-nucleophilic base for deprotonation and elimination reactions in sensitive synthetic pathways.
• Polymerization Catalyst/Initiator: Used in the production of specialized polymers, including epoxy resins and polycarbonates.
• Analytical Chemistry: Employed as a titrant in non-aqueous acid-base titrations for the determination of weak acids.
• Surface Modification Agent: Aids in the treatment of materials to alter surface properties for enhanced performance.
• Electrolyte Component: Investigated for use in electrochemical applications and advanced battery systems.

Basic Information

Product Name	Tetraoctylphosphonium Hydroxide Solution, ~20% In Methanol
CAS No.	40333-00-4
Molecular Formula	C32H69OP (for cation)
Molecular Weight	500.88 g/mol (for cation)
Synonyms	Tetraoctylphosphonium hydroxide; Trioctyl(octyl)phosphonium hydroxide; Phosphonium, tetraoctyl-, hydroxide; Tetra-n-octylphosphonium hydroxide; TOPOH; P(Oct)4OH; Tetraoctylphosphonium hydroxide methanolic solution
EINECS	254-897-8

Quality Control

Our Tetraoctylphosphonium Hydroxide Solution is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. Certificates of Analysis (COA) detailing assay, solvent content, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place at room temperature (15-25°C). Due to the highly volatile and flammable nature of the methanol solvent, keep away from heat, sparks, and open flame. The solution is strongly alkaline; handle with appropriate precautions to avoid exposure to air and moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow solution
Identification (IR)	Conforms
Assay (Tetraoctylphosphonium Hydroxide)	~20% w/w in Methanol
Assay (Titration)	18.0 - 22.0 %
Methanol Content	Balance
Water Content (KF)	< 1.0 %
Chloride (Cl)	< 0.1 %

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