ChemicalBook CAS DataBase List Tetraethylammonium hydroxide

Tetraethylammonium hydroxide synthesis

6synthesis methods

Product Name:Tetraethylammonium hydroxide
CAS Number:77-98-5
Molecular formula:C8H21NO
Molecular Weight:147.26

64-67-5
361 suppliers
$14.00/5g

64-17-5 Synthesis

64-17-5
724 suppliers
$10.00/50g

121-44-8 Synthesis

121-44-8
857 suppliers
$9.00/5g

77-98-5
301 suppliers
$17.00/25g

Yield:77-98-5 95.7%

Reaction Conditions:

Stage #1: diethyl sulfate;ethanol;triethylamine in water at 140; under 7500.75 Torr; for 4 h;
Stage #2: with sodium hydroxide in ethanol;water at 45; for 4 h;

Steps:

12

Example 12 Preparation of Tetraethyl Ammonium Hydroxide To a 1.5 L autoclave equipped with a stirrer and a heating means were added 154 g (1.0 mol) of diethyl sulfate, 101 g (1.0 mol) of triethyl amine and 690 g (15 mol) of ethanol. Stirring was initiated after the autoclave was sealed. The autoclave was heat to 140° C., and pressure was 1.0 MPa. The reaction was kept at 140° C. for 4 h. Then the reaction mixture was cooled to room temperature and discharged into a 1L three-necked flask. 80 g (2.0 mol) of sodium hydroxide was added thereto. The reaction mixture was heated at 45° C. for 4 h while stirring. After filtration, part of ethanol was distilled off from the filtrate. Then 500 g of water was added while ethanol was distilled off (part of water was entrained out), to give 604 g of tetraethyl ammonium hydroxide solution. The content of tetraethyl ammonium hydroxide was found as 23.3 wt.-% and the total reaction yield was 95.7%.

References:

US2005/65376,2005,A1 Location in patent:Page/Page column 11

71-91-0 Synthesis