Description

Ethyltributylphosphonium Ethyl Sulfate is a high-purity ionic liquid and quaternary phosphonium salt with significant industrial utility. Its unique properties make it a valuable phase-transfer catalyst and reaction medium for demanding organic synthesis. This compound is essential for manufacturers in the pharmaceutical intermediates, specialty chemical, and polymer industries seeking efficient and selective reaction pathways.

Application

• Phase-Transfer Catalyst (PTC): Facilitates reactions between reagents in immiscible phases, particularly in alkylation, esterification, and polymerization processes.
• Ionic Liquid Solvent/Medium: Serves as a green, non-volatile solvent for organic synthesis, separation processes, and electrochemistry.
• Pharmaceutical Intermediate Synthesis: Used in the production of active pharmaceutical ingredients (APIs) and complex organic molecules where high selectivity is required.
• Polymerization Aid: Acts as a catalyst or co-catalyst in the synthesis of specific polymers and resins.
• Specialty Chemical Manufacturing: Employed in the synthesis of fine chemicals, dyes, and flavor/fragrance compounds.
• Extraction and Separation Agent: Utilized in liquid-liquid extraction processes for metal ions or organic compounds.

Basic Information

Product Name	Ethyltributylphosphonium Ethyl Sulfate
CAS No.	654057-98-4
Molecular Formula	C16H37O4PS
Molecular Weight	356.51 g/mol
Synonyms	Ethyltributylphosphonium Ethylsulfate; Tributylethylphosphonium Ethyl Sulfate; [EtBu3P][EtSO4]; Ethyltributylphosphonium Ethyl Sulphate; Tetrabutylphosphonium Ethyl Sulfate (common misnomer); Phosphonium, ethyltributyl-, ethyl sulfate (1:1); Ionic Liquid [EtBu3P][ESO4]
EINECS	Contact for details

Quality Control

Our Ethyltributylphosphonium Ethyl Sulfate is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the high standards required for catalytic and synthetic applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided to guarantee batch-to-batch consistency and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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