• Products

    Chemical Products for Diverse Industrial Applications

‹

›

Tetraethylammonium Hydroxide

Tetraethylammonium Hydroxide

Basic Information

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

Can't Find The Product You Need?

Tell Us Your Product Requirements, Specifications And Target Industry, Our Professional Team Will Reply You Within 24 Hours.

Product Details

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
PropertyValue

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

PropertyValue

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

详情-工厂

Shipping And Transportation

详情-物流

FAQ

Q1: What information should I include in my inquiry?

A1: Please provide the product name, purity or grade, required quantity, packaging, application, destination, and any documentation requirements. More complete information helps us prepare an accurate quotation.


Q2: Can I request a sample?
A2: Samples may be available for selected products. Please provide the required grade, sample quantity, application, and delivery details so we can confirm availability and shipping arrangements.


Q3: What product documents can you provide?
A3: Depending on the product, available documents may include a COA, SDS, TDS, specifications, and packing information. Please confirm your documentation requirements before ordering.


Q4: Can you provide customized specifications or packaging?
A4: Customization may be available for selected products, including product specifications, packaging sizes, and labeling. Feasibility and minimum order requirements are evaluated individually.

 

Q5: How long does delivery take?

A5: Delivery time depends on product availability, order quantity, shipping method, destination, and customs procedures. An estimated schedule will be Q6: provided after the order requirements are confirmed.

 

Q6: Can you arrange the shipment of regulated chemicals?

A6: For eligible products and destinations, we can help coordinate appropriate packaging, shipping documents, and logistics arrangements. Requirements depend on the product classification, carrier rules, and destination regulations.

Contact Us

Related Recommendations