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Tetraethylammonium Hydroxide

Name: Tetraethylammonium Hydroxide
SKU: 0

Tetraethylammonium Hydroxide
CAS No.: 77-98-5
Molecular Formula: C8H21NO
Molecular Weight:147.26

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PRODUCT DESCRIPTION

Youdaoplaceholder0 Pure is colorless transparent crystal, highly hygroscopic, deliquescent to liquid at room temperature; Most industrial products are 20% to 40% aqueous solutions, presenting as colorless to pale yellow transparent liquids. At high concentrations, they are extremely alkaline (pH≈14). It is readily soluble in polar solvents such as water, ethanol and acetone, and undergoes neutralization reaction with acid to form tetraethyl ammonium chloride.

Chemical Properties

Property	Value
Melting Point	-98C
Boiling Point	110 °C
Ddensity	1.023 g/mL at 25 °C
Refractive iIndex	n20/D1.422
Fp	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

Property	Value
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

Product Usage

Tetraethylammonium Hydroxide (TEAOH for short), with CAS No. 77-98-5 and chemical formula C₈H₂₁NO, is mostly sold as a 20% aqueous solution, appearing as colorless to pale yellow liquid. It is easily soluble in water and ethanol, with strong alkalinity, stable chemical properties but easy to absorb carbon dioxide in the air[3]. Its core applications are in organic synthesis, electronics, analytical chemistry and other fields. It serves as a strong base catalyst to accelerate transesterification, hydrolysis and other reactions, and also as a phase transfer catalyst to improve reaction efficiency. In the electronic field, it is used for semiconductor wafer cleaning and photoresist development to assist chip manufacturing. It can also be used as an ion-pair reagent to assist chromatographic separation, being an indispensable functional raw material in fine chemicals, electronic manufacturing and other fields with small dosage and remarkable effect.

Factory Showcase

Fast transport time

Inventory 2-3 working days New manufacturing 7-10 working days

FAQ

Q:What about your price?
A:Our price is very competitive because we are a factory. Feel free to contact us if you are interested in our products.

Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.

Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Q:How about the delivery time?
A:Within 3-15 days after we confirm you requirement.

Q:What is your terms of payment ?
A:T/T, L/C at sight, Cash, Western Union are all accepted if you have other payment,please contact me.

Q: Do you provide samples?
A:Yes,we could offer the sample for you to test but please pay freight fee.

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