Description

Tetraoctadecylammonium Hydroxide is a high molecular weight quaternary ammonium compound. This long-chain ammonium hydroxide serves as a powerful phase-transfer catalyst and surfactant, enabling reactions between reagents in immiscible phases. It is particularly valuable for industries requiring efficient organic synthesis and surface modification. Key users include manufacturers of specialty chemicals, advanced materials, and catalysts.

Application

• Phase-Transfer Catalyst (PTC) in organic synthesis, facilitating reactions between aqueous and organic phases.
• Surfactant and Emulsifier for the formulation of high-performance detergents and industrial cleaning agents.
• Template Agent in the synthesis of mesoporous silica and other structured nanomaterials.
• Ion-Pairing Reagent in analytical chemistry, particularly for HPLC method development.
• Corrosion Inhibitor additive in coatings and functional fluids for metal protection.
• Biocide Intermediate for the production of quaternary ammonium compound-based disinfectants.
• Extraction Aid in metallurgical processes for the separation and purification of metal ions.

Basic Information

Product Name	Tetraoctadecylammonium Hydroxide
CAS No.	137044-24-7
Molecular Formula	C₇₂H₁₅₇NO
Molecular Weight	1053.0 g/mol (approx.)
Synonyms	Trioctadecyloctadecylammonium Hydroxide; TOMAH Hydroxide; Tetraoctadecylazanium Hydroxide; N,N,N-Trioctadecyloctadecan-1-aminium Hydroxide; Arquad 2HT-75 (Hydroxide Form); Quaternary Ammonium Hydroxide C72; TDAH; Long-chain quaternary ammonium base
EINECS	Contact for details

Quality Control

Our Tetraoctadecylammonium Hydroxide is produced under a rigorous quality management system. Each batch is analyzed to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical applications.

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 product is hygroscopic (moisture-sensitive) and should be kept under an inert atmosphere such as nitrogen to prevent degradation and carbon dioxide absorption. Keep away from incompatible materials such as strong acids.

Specification

Item	Specification
Appearance	White to off-white waxy solid or viscous solution
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Active Matter	Contact for details
Water Content (KF)	≤ 2.0%
Chloride (Cl)	≤ 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.