Description

Tetramethylphosphonium Iodide is a versatile quaternary phosphonium salt with significant utility in advanced chemical synthesis. Its primary value lies in its role as a highly effective phase-transfer catalyst and a key precursor for synthesizing other phosphonium compounds and ionic liquids. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, where it facilitates critical reactions and material development.

Application

• Phase-Transfer Catalyst (PTC): Widely used to accelerate reactions between reagents in immiscible phases, improving yield and efficiency in alkylation and other organic syntheses.
• Precursor for Ionic Liquids: Serves as a key starting material for the synthesis of novel phosphonium-based ionic liquids, which are used as green solvents and electrolytes.
• Pharmaceutical Intermediate: Employed in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs) requiring quaternary phosphonium moieties.
• Polymer Chemistry: Acts as a catalyst or initiator in polymerization reactions and in the production of specialized polymers and resins.
• Agrochemical Synthesis: Utilized in the manufacturing process of certain pesticides and herbicides where phase-transfer catalysis is beneficial.
• Material Science Research: Used in laboratories for developing new materials, including advanced electrolytes for batteries and conductive polymers.
• Ligand Synthesis: Functions as a building block for creating phosphine ligands used in coordination chemistry and homogeneous catalysis.

Basic Information

Product Name	Tetramethylphosphonium Iodide
CAS No.	993-11-3
Molecular Formula	C4H12IP
Molecular Weight	218.01 g/mol
Synonyms	Phosphonium, tetramethyl-, iodide; Tetramethylphosphonium iodide; Tetramethylphosphanium iodide; TMPI; Methylphosphonium iodide; Tetramethylphosphonium iodide (1:1); Tetramethylphosphonium monoiodide; Tetramethylphosphonium iodide salt
EINECS	213-596-5

Quality Control

Our Tetramethylphosphonium Iodide is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC for assay and impurity profiling, to confirm it meets the required specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	300 - 305 °C (dec.)
Loss on Drying	≤ 2.0 %
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.