Tetramethylammonium Hydroxide (10% in Water) TCI T0138

Chemical Identity

Other names: TMAH
CAS No.: 75-59-2
PubChem: CID 60966·SID 87576140
Formula: C4H13NO
Molecular weight: 91.15 g/mol
Reference databases: ChemSpider·ECHA·Wikipedia

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: tetramethylazanium hydroxide
SMILES: C[N+](C)(C)C.[OH-]
InChIKey: WGTYBPLFGIVFAS-UHFFFAOYSA-M

Rp 530.250,00

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Tetramethylammonium Hydroxide (TMAH), with the CAS number 75-59-2, is a liquid chemical compound widely used in synthetic chemistry applications. It is a strong base and plays a crucial role in various laboratory processes, including precipitation, separation, and chemical reactions. TMAH is commonly employed as a reagent to adjust the pH of solutions or as a catalyst in the synthesis of organic compounds. Its versatility makes it an essential component in many chemical experiments and research activities.

TMAH is known for its high solubility in water and its strong basic properties, which make it a preferred choice for a variety of chemical applications. Its reactivity allows it to be used in both qualitative and quantitative analysis to identify and measure specific compounds. However, due to its corrosive nature, it requires careful handling. TMAH is stable under certain conditions but is highly sensitive to moisture and high temperatures, which must be considered during storage and use.

In Indonesian laboratories, TMAH is frequently used in chemical research, environmental analysis, and the development of chemical products. Its reliability and effectiveness make it a primary choice for researchers and technicians working in various scientific fields. The availability of a 10% aqueous solution makes it convenient for daily laboratory use, ensuring accessibility and ease of application.

TCI brochures (PDF)

Quaternary Ammonium Salts 2025-11-10 · p. 2
Colloidal Quantum Dot (QD) Research Reagents 2026-05-21 · p. 10

Related TCI products

Chemical synthesis where a strong base is required for reaction control and intermediate formation.
Environmental analysis to detect and quantify acidic compounds in water and soil samples.
pH adjustment in solution preparation for biochemical and analytical experiments.
Qualitative and quantitative analysis to identify and measure specific organic and inorganic compounds.
Organic compound development in the formulation of new pharmaceutical and industrial products.

Brand	TCI
CAS number	75-59-2
Molecular formula	—
Purity	—
Category	Chemistry > Synthetic Reagents > Acids, Bases [Synthetic Reagents]
Pack sizes	10% aqueous solution in various volumes
Physical form	Liquid
Storage	Store in a cool, dry place away from moisture and heat

TMAH should be stored in a cool, dry place, away from moisture and heat to maintain its stability. It is recommended to use suitable containers made of materials resistant to corrosion, such as glass or high-density polyethylene. Due to its strong basic nature, it can cause skin and eye irritation, so personal protective equipment like gloves, goggles, and lab coats should be worn when handling. In case of spills, neutralizing agents should be used, and proper ventilation should be ensured. Always follow standard safety protocols to minimize exposure and ensure safe laboratory practices.

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