Tetramethylammonium Hydroxide (TMAH) CAS 75-59-2 (25% Aqueous Solution)

Short Description:

Tetramethylammonium Hydroxide (25% Aqueous Solution)

Synonyms: TMAH

CAS: 75-59-2

Assay: 24.5~25.5%

Appearance: Colorless Liquid

Quaternary Ammonium Salts, High Quality

Contact: Dr. Alvin Huang

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E-Mail: alvin@ruifuchem.com

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Product Detail

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Description:

Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer and supplier of Tetramethylammonium Hydroxide (TMAH) (CAS: 75-59-2) with high quality, commercial production. We can provide Certificate of Analysis (COA), Safety Data Sheet (SDS), worldwide delivery, small and bulk quantities available, strong after-sale service. Welcome to order. Please contact: alvin@ruifuchem.com

Chemical Properties:

Chemical Name	Tetramethylammonium Hydroxide (25% Aqueous Solution)
Synonyms	TMAH (25% Aqueous Solution)
CAS Number	75-59-2
CAT Number	RF-PI1749
Stock Status	In Stock, Production Scale Up to Tons
Molecular Formula	(CH3)4NOH
Molecular Weight	91.15
Refractive Index (N20/D)	1.378~1.384
Odor	Strong Ammonia-Like Odor
Hazard Warning	Highly Toxic! Flammable Liquid!
Brand	Ruifu Chemical

Specifications:

Item	Specifications
Appearance	Colorless Liquid
Assay	24.5~25.5% (Assay by Titration)
Chloride	<500ppm
Potassium (K)	<5ppm
Sodium (Na)	<5ppm
Color	<50APHA
Test Standard	Enterprise Standard
Usage	for Photoresist Research

Package & Storage:

Package: 25kg/Drum, or according to customer's requirement.

Storage Condition: Store in sealed containers at cool and dry place; Protect from light and moisture.

Advantages:

FAQ:

Application:

Tetramethylammonium Hydroxide (TMAH) (CAS: 75-59-2) is a quaternary ammonium salt generally used as an anisotropic etchant for silicon due to its high silicon etching rate, basic solvent in the development of acidic photoresist in photolithography process, as surfactant in the synthesis of ferrofluid and as a polarographic reagent. It finds application in the production of organic silicon, where it is used for computer silicon wafer surface brightener and cleaning agent. It is also involved in the purification of some metallic elements.