Home Categories Chemical Reagents Tetraethylammonium hydroxide
A7653712

Tetraethylammonium hydroxide , AR, 25%methanol solution , 77-98-5

Synonym(s):
TEA hydroxide;TEAOH solution

CAS NO.:77-98-5

Empirical Formula: C8H21NO

Molecular Weight: 147.26

MDL number: MFCD00009024

EINECS: 201-073-3

Update time: 2022-07-08

PRODUCT 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)

Description and 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.

Safety

Symbol(GHS) 
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P280-P301+P330+P331-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
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
9-34
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  29239000

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