Tetra Methyl Ammonium Hydroxide Pentahydrate

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Tetra Methyl Ammonium Hydroxide Pentahydrate

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Tetra Methyl Ammonium Hydroxide Pentahydrate Specification

Heavy Metal (%)
0.001%

Melting Point
65C

Residue on Ignition
0.1%

Place of Origin
India

Molecular Formula
C4H13NO5H2O

EINECS No
600-160-2

Molecular Weight
181.29 g/mol

Assay
99%

Boiling point
Decomposes on heating

HS Code
2921.19.90

Storage
Store in a cool, dry place, tightly sealed container

Ph Level
13-14 (1% solution)

Loss on Drying
2.0%

Other Names
Tetramethylammonium Hydroxide Pentahydrate; TMAH5H2O

CAS No
10424-65-4

Type
Inorganic Base

Grade
Electronic Grade

Usage
Microelectronics manufacturing, photoresist developer, chemical synthesis

Purity
99%

Appearance
Crystalline solid

Application
Etching agent for silicon wafer processing, analytical reagent, chemical intermediate

Raw Material
Ammonia, methyl iodide

Smell
Ammoniacal

Color
White

Form
Solid

Density
1.015 g/cm³ (at 20°C)

Packaging
25 kg HDPE drum or customized on request

Shelf Life
24 months from date of manufacture if stored properly

Solubility
Soluble in water, alcohol, and ether

Stability
Stable under recommended storage conditions, sensitive to CO2 and moisture

Hazard Class
8 (Corrosive substances)

UN Number
UN 2923

Tetra Methyl Ammonium Hydroxide Pentahydrate Trade Information

Main Export Market(s)
Asia, Central America, North America, South America, Western Europe, Middle East, Eastern Europe, Australia, Africa

Main Domestic Market
All India

About Tetra Methyl Ammonium Hydroxide Pentahydrate

Tetra Methyl Ammonium Hydroxide Pentahydrate

The chemical compound known as tetramethylammonium hydroxide pentahydrate (TMAH) has the formula (CH3)4NOH5H2O. It is a white, crystalline solid that can be dissolved in polar organic solvents as well as water. A frequent reagent in organic synthesis, TMAH is a potent base and is especially useful in the fabrication of silicon wafers for the semiconductor industry.

In the semiconductor industry, silicon wafers are etched using TMAH. During the lithography process, it serves as a developer to strip photoresist off the wafers. Because it is less corrosive and less likely to harm the underlying silicon, TMAH is recommended over other developers.

In analytical chemistry, TMAH is also employed as a reagent for silica and phosphate analysis in water samples. The content of hydrocarbons and other organic components in fossil fuels is also determined using TMAH during this research.

FAQ

1. What is Tetra Methyl Ammonium Hydroxide pentahydrate, exactly?

Ans - The chemical molecule Tetra Methyl Ammonium Hydroxide Pentahydrate (TMAP) serves as a base in numerous industrial and biological processes. It is a hygroscopic, solid, white substance that is soluble in both alcohol and water.

2. What is Tetra Methyl Ammonium Hydroxide Pentahydrate's chemical formula?

Ans - Tetramethylammonium Hydroxide Pentahydrate has the chemical formula C4H15NO5H2O.

3. What are a few typical applications for Tetra Methyl Ammonium Hydroxide pentahydrate?

Ans - Tetra Methyl Ammonium Hydroxide Pentahydrate is frequently employed as a surfactant in emulsions, a base in buffer solutions, a catalyst in chemical reactions, and an antifoaming agent in the food industry.

4. How should pentahydrate of Tetra Methyl Ammonium Hydroxide be stored?

Ans - Tetra Methyl Ammonium Hydroxide Pentahydrate need to be kept in an airtight container in a cool, dry location. It shouldn't be kept in temperatures above 40 Deg C (104 Deg F) or in direct sunlight.

5. Does utilising Tetra Methyl Ammonium Hydroxide Pentahydrate raise any safety issues?

Ans - To the skin and eyes, Tetra Methyl Ammonium Hydroxide Pentahydrate may be caustic and irritating. To avoid coming into contact with the compound directly, it should be handled with the proper safety precautions and protective gear.

High Purity and Reliable Performance

With an assay of 99% and stringent residue and heavy metal limits, Tetra Methyl Ammonium Hydroxide Pentahydrate guarantees exceptional purity and quality. Its electronic grade specification makes it the preferred choice for applications requiring high precision, such as microelectronics and analytical laboratories. The consistency of the crystalline solid ensures effective process control and results.

Versatile Solubility

TMAH5H2O dissolves readily in water, alcohol, and ether, facilitating its use in diverse chemical procedures. This versatile solubility allows for flexible formulation in manufacturing and synthesis, maximizing its utility as a photoresist developer and etching agent in the electronic industry.

Safe Handling and Packaging

Packaged in robust 25 kg HDPE drums or as per custom requirements, the product is safeguarded from moisture and atmospheric CO2. Proper storage in a cool, dry place in tightly sealed containers extends its shelf life up to 24 months, ensuring long-term stability and quality.

FAQ's of Tetra Methyl Ammonium Hydroxide Pentahydrate:

Q: How should Tetra Methyl Ammonium Hydroxide Pentahydrate be stored to maintain stability?

A: To preserve its quality, store TMAH5H2O in a tightly sealed container in a cool, dry location. This protects it from moisture and carbon dioxide, which could otherwise compromise its stability and purity.

Q: What is the main usage of TMAH5H2O in industry?

A: TMAH5H2O is used mainly in microelectronics for silicon wafer etching and as a photoresist developer. It also serves as a chemical intermediate and analytical reagent.

Q: When does TMAH5H2O decompose and what precautions should be taken during heating?

A: This compound decomposes upon heating rather than boiling. Therefore, it should not be subjected to elevated temperatures, and adequate ventilation and safety protocols must be maintained during any thermal processing.

Q: Where is Tetra Methyl Ammonium Hydroxide Pentahydrate manufactured and how is it packaged?

A: The product is manufactured in India and is typically supplied in 25 kg HDPE drums. Customized packaging can also be arranged to meet specific customer requirements.

Q: What benefits does TMAH5H2O offer in electronic applications?

A: With high purity and reliable solubility, the compound ensures precise etching and photoresist development, supporting critical processes in semiconductor and microelectronics fabrication.

Q: How is TMAH5H2O handled in terms of safety and hazard classification?

A: Classified as a corrosive substance (Hazard Class 8, UN 2923), safe handling involves using appropriate personal protective equipment and following standard chemical safety protocols.

Q: What is the recommended shelf life of Tetra Methyl Ammonium Hydroxide Pentahydrate?

A: If stored according to the recommended guidelines, TMAH5H2O has a shelf life of 24 months from the date of manufacture without significant loss of quality.

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