Tetraethylammonium hydroxide Chemical Properties

Melting point:

-98C

Boiling point:

110 °C

Density 

1.023 g/mL at 25 °C

refractive index 

n20/D 1.422

Flash point:

11 °C

storage temp. 

2-8°C

form 

Solution

color 

colorless to yellow

PH

>13 (H2O, 20°C)

Water Solubility 

SOLUBLE

Sensitive 

Air Sensitive

Merck 

14,9201

BRN 

3912961

Stability:

Stable, but absorbs carbon dioxide from the air

InChIKey

LRGJRHZIDJQFCL-UHFFFAOYSA-M

CAS DataBase Reference

77-98-5(CAS DataBase Reference)

EPA Substance Registry System

Tetraethyl ammonium hydroxide (77-98-5)

Safety Information

Hazard Codes 

C,N,T,F

Risk Statements 

34-51-39/23/24/25-23/24/25-11-35

Safety Statements 

7-16-26-36/37/39-45-61-36/37

RIDADR 

UN 3286 3/PG 2

WGK Germany 

3

RTECS 

KH3150000

F 

9-34

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

HS Code 

29239000

MSDS

• Language:English Provider:Tetraethylammonium hydroxide
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
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Tetraethylammonium hydroxide Usage And Synthesis

Chemical Properties

colourless liquid

Uses

Tetraethylammonium hydroxide is a strong organic base and finds applications in photovoltaic chemicals, advanced ceramics, flat panel display chemicals, selective etching and transesterification catalysts. Its solution (35 wt. % in H2O) may be used as an organic structure-directing agent (SDA)/template in the synthesis of mesoporous molecular sieves and zeolite samples.

General Description

The product is 20wt.% solution of tetraethylammonium hydroxide (TEA hydroxide, TENOH) in H₂O. TEA hydroxide is a quaternary ammonium hydroxide (QAH). It participates in the synthesis of zeolite beta. TENOH peptized titania aqueous sols have been employed in the preparation of nanocrystalline anatase films.

Hazard

Strong irritant to skin and tissue.

Tetraethylammonium hydroxide (77-98-5)Related Product Information

• Rhodamine B
• Tetrabutylammonium hydroxide
• Tetraethylammonium Chloride
• Benzyltrimethylammonium hydroxide
• Tetraethylammonium bromide
• Ammonium hydroxide
• Tetrapropylammonium hydroxide
• Sodium hydroxide
• Tetramethylammonium hydroxide pentahydrate
• TETRAETHYLAMMONIUM P-TOLUENESULFONATE
• Tetraethylammonium nitrate
• TETRAETHYLAMMONIUM BOROHYDRIDE
• Tetraethylammonium tetrafluoroborate
• TETRABUTYLAMMONIUM CHLOROCHROMATE
• Tetrabutylammonium perchlorate
• Tetrabutylammonium periodate
• Tetrahexylammonium hydrogensulphate
• Tetraethylammonium acetate