Tetramethylammonium chloride 75-57-0

Product Name: Tetramethylammonium Chloride
English Alias: TMAC; Tetramethylammonium chloride
CAS Number: 75-57-0
Molecular Formula: C₄H₁₂ClN
Molecular Weight: 109.60 g/mol
Appearance: White crystalline powder or hygroscopic crystals
Package: 1 kg/bag, 5 kg/bag (double sealed aluminum bags with desiccant)

What is Tetramethylammonium Chloride？

Tetramethylammonium Chloride is a quaternary ammonium salt appearing as a white crystalline powder or hygroscopic crystals. It is highly soluble in water and polar solvents such as ethanol and methanol. The compound is widely used as a phase transfer catalyst, electrolyte, and chemical intermediate in organic synthesis and electrochemical applications. It exhibits strong hygroscopic properties and requires careful handling under dry conditions.

COA (Certificate of Analysis):

Project	Standard	Measured
Main content (%)	≥99.00	99.34
Amine value (mg KOH/g)	≤3.00	0.75
Moisture (%)	≤0.5	0.28
Exterior	White To Milky White Crystals	White Crystal

Application:

Phase Transfer Catalyst: Facilitates reactions between immiscible phases in organic synthesis

Electrochemical Research: Supporting electrolyte in electrochemical experiments

Polymer Chemistry: Catalyst in polymerization reactions

Surfactant: Template agent for molecular sieve synthesis

Analytical Chemistry: Mobile phase additive in chromatography

Electronics: Etching agent in printed circuit board manufacturing

Safety Profile:

Tetramethylammonium Chloride is harmful if swallowed. Causes skin and eye irritation. Inhalation of dust may cause respiratory irritation. Use appropriate personal protective equipment including gloves, safety glasses, and dust mask when handling. Avoid breathing dust and ensure adequate ventilation. The substance is toxic to aquatic life. For detailed safety information, always consult the full Safety Data Sheet (SDS).

Storage Requirements:

Store in a cool, dry, well-ventilated area under inert atmosphere. Keep containers tightly sealed and protected from moisture. Maintain storage temperature between 15-25°C. Relative humidity below 40% recommended. Handle under dry inert gas when opening containers.

Transport & Packaging:

Tetramethylammonium Chloride is packaged in double-sealed aluminum bags with desiccant (1 kg or 5 kg net weight per bag), placed in sturdy outer containers. Transport as hygroscopic material. Ensure containers are properly sealed and protected from moisture during transportation. Store away from incompatible materials.