Tetra Methyl Ammonium Hydroxide Solution

Tetra Methyl Ammonium Hydroxide Solution

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Product Description

Tetramethylammonium hydroxide (TMAH) solution is a highly basic organic compound that is commonly used as a reagent and etchant in various industrial and laboratory applications. It has the chemical formula N(CH3)4OH and is also known as TMAOH.

TMAH is a colorless to yellowish liquid that is highly soluble in water and has a strong ammoniacal odor. It is typically supplied as a concentrated aqueous solution containing 25-50% TMAH by weight.

TMAH is widely used in the semiconductor industry as a photoresist developer and as an etchant for silicon dioxide and other materials. It is also used in the production of specialty chemicals, pharmaceuticals, and as a surfactant.

Like other highly basic substances, TMAH is corrosive and can cause severe burns and eye damage upon contact. Proper protective equipment, including gloves and goggles, should always be worn when handling this substance. TMAH should be stored in a cool, dry, well-ventilated area away from sources of ignition and incompatible materials.


1. What is tetramethyl ammonium hydroxide solution?

Ans - Tetramethyl ammonium hydroxide solution (TMAH) is an aqueous solution of tetramethylammonium hydroxide, and is a strong base used in a variety of industrial and research applications.

2. What are the applications of TMAH?

Ans - TMAH is widely used in the chemical industry, as it is a strong base and can be used as a catalyst in a variety of reactions. It is also used in the semiconductor industry as an etchant, as well as in the pharmaceutical industry as a cleaning agent.

3. Is TMAH hazardous to human health?

Ans - TMAH is toxic and can be harmful if inhaled or swallowed, and skin contact should be avoided. Proper protective equipment such as gloves, safety glasses, and a respirator should be worn when handling TMAH.

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