Description

Tetrabutylphosphonium Iodide is a high-purity quaternary phosphonium salt with the CAS number 3115-66-0. This compound serves as a versatile and highly effective phase-transfer catalyst and ionic liquid precursor, critical for facilitating reactions between reagents in different phases. It is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to optimize synthesis efficiency and yield.

Application

• Phase-Transfer Catalyst (PTC): Widely used to accelerate alkylation, esterification, and displacement reactions in biphasic systems, improving reaction rates and selectivity.
• Ionic Liquid Synthesis: Serves as a key precursor for the preparation of task-specific ionic liquids used in green chemistry, catalysis, and separation processes.
• Polymerization Catalyst: Employed as a catalyst or co-catalyst in the synthesis of polycarbonates, epoxies, and other high-performance polymers.
• Pharmaceutical Intermediates: Facilitates the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs) through efficient catalytic cycles.
• Agrochemical Manufacturing: Used in the production of pesticides and herbicides where phase-transfer catalysis is required for key synthetic steps.
• Organic Synthesis Reagent: A valuable reagent for various organic transformations, including nucleophilic substitutions and carbon-carbon bond formations.
• Electrolyte Additive: Investigated for use in electrochemical applications and battery systems due to its ionic properties.
• Research & Development: A fundamental tool in academic and industrial laboratories for developing new synthetic methodologies.

Basic Information

Product Name	Tetrabutylphosphonium Iodide
CAS No.	3115-66-0
Molecular Formula	C16H36IP
Molecular Weight	386.34 g/mol
Synonyms	Phosphonium, tetrabutyl-, iodide; Tetra-n-butylphosphonium iodide; TBPI; TBPhI; Butylphosphonium iodide; Tetrabutylphosphonium iodide salt; Tetrabutylphosphane iodide
EINECS	221-491-5

Quality Control

Our Tetrabutylphosphonium Iodide is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the high standards required for catalytic and synthetic applications. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	145 - 150 °C
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1 %

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