Tetramethylammonium hydroxide solution we supply mainly are Tetramethyl ammonium hydroxide aqueous solution and Tetramethyl ammonium hydroxide methanol solution. The following are several general methods for preparing these materials:
1. Synthesis method (Tetramethyl ammonium hydroxide methanol solution)
Tetramethyl ammonium chloride+NaOH/KOH (solution: methanol) →Tetramethyl ammonium hydroxide 25% methanol solution
2. Electrolytic method (Tetramethyl ammonium hydroxide aqueous solution)
①Trimethyl amine+dimethyl carbonate → Tetramethyl ammonium bicarbonate aqueous solution → Electrolysis → Tetramethyl hydroxide ammonium hydroxide (about 25%) → Concentration or dilution →Tetramethyl ammonium hydroxide 10% or 25% aqueous solution
Features: Low cost, produce CO2, and high carbonate content in the finished product
②Tetramethyl ammonium chloride → Electrolysis → Tetramethyl ammonium hydroxide (about 25%) → Concentration or dilution→Tetramethyl ammonium hydroxide 10% or 25% aqueous solution
Features: High cost, producing chlorine gas, and high chloride ion content in the finished product
