Tetramethylammonium Hydroxide Pentahydrate Wiki, 3 4. TMAOH has been used in the analysis of marine compounds by TLC-pyrolysis-GC/MS and thermal desorption/capillary GC/inductively Tetramethylammonium hydroxide pentahydrate, min. The pentahydrate CAS# is 10424-65-4. Application Tetramethylammonium hydroxide pentahydrate has been used in a study to assess strains of Pseudomnas species by a single-step gas chromatographic characterization procedure. [1] It has also been used in a study to investigate solid-state metal hydride batteries nickel oxyhydroxide-metal hydride and manganese dioxide-metal hydride. The information relates only to the The free base is obtained by treating the bromide with warm water. Tetramethylammonium hydroxide (TMAH or TMAOH) is a quaternary ammonium salt with the molecular formula N (CH 3) 4+ OH −. The solid is colorless, or yellowish if impure. Tetramethylammonium hydroxide pentahydrate is a quaternary ammonium salt with the molecular formula C₄H₁₃NO·5H₂O. [2] Tetramethylammonium hydroxide (TMAH) is a potentially lethal chemical that is commonly used in device research as an etchant for silicon and developer for photopatterning1. ; Feng, J. ^ L09658 Tetramethylammonium hydroxide pentahydrate, 98%. It is often used in aqueous solution, but is also occasionally used as a solution in methanol. ; Wilson, R. "Polyhedral clathrate hydrates of a strong base: Phase relations and crystal structures in the system tetramethylammonium hydroxide-water". Contact us today! Tetramethylammonium hydroxide pentahydrate, 98% from Thermo Scientific Chemicals. Tetramethylammonium hydroxide (TMAH or TMAOH) is a quaternary ammonium salt with molecular formula N (CH 3) 4+ OH −. TETRAMETHYLAMMONIUM HYDROXIDE All users of tetramethylammonium hydroxide (TMAH) must review this document prior to its use. A. Shop Tetramethylammonium hydroxide pentahydrate, 97% at Fishersci. 1 2. Two fatal case reports of tetramethylammonium hydroxide intoxication: new challenge for the widely used but life-threatening substance; 2007 International Conference for Chemical Disasters and Medical Preparedness in Taiwan, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, 22–23 June 2007. Prepared as a solution in water by electrolysis of tetramethylammonium iodide (at anode), ammonium hydroxide (at cathode), and water (central compartment) in a three-compartment cell. Tetrabutylammonium hydroxide is a chemical compound with the formula (C 4 H 9) 4 NOH, abbreviated Bu 4 NOH with the acronym TBAOH or TBAH. 95% | Formula Weight 181. [2020-01-08] ^ Christe, K. : T7505 : Sigma : 10424-65-4 Tetramethylammonium hydroxide (TMAH) is defined as a popular methylation reagent used for the detection of organic compounds in various samples, including soil and polymers, and is employed in thermochemolysis for qualitative and quantitative analysis. Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. [OH Tetramethylammonium hydroxide (TMAOH) is an ion pairing agent that is commonly used in analytical chemistry. Tetramethylammonium hydroxide CAS 75-59-2 WIKI information includes physical and chemical properties, USES, security data, NMR spectroscopy, computational chemical data and more. It is commonly encountered in form of concentrated solutions in water or methanol. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use. Tetramethylammonium hydroxide (TMAH) is a quaternary ammonium salt with the molecular formula (CH3)4NOH. It is widely used in micro- or nanofabrication as an etchant and developer. Tetramethylammonium hydroxide | C4H12N. References ^ abcd Sigma-Aldrich Co. Available in 5 g Material Safety Data Sheet or SDS for Tetramethylammonium hydroxide pentahydrate 10424-65-4 from chemicalbook for download or viewing in the browser Tetramethylammonium hydroxide (TMAOH) is an ion pairing agent that is commonly used in analytical chemistry. Although TMAH has virtually no odor when pure, samples often have a strong fishy smell due to Jul 7, 2025 · General Description and Uses Tetramethylammonium Hydroxide (TMAH) is available in solution and in the pentahydrate form as a white crystalline solid. Shop Tetramethylammonium hydroxide pentahydrate, 98% at Fishersci. W. , Tetramethylammonium hydroxide pentahydrate. HO or C4H13NO | CID 60966 - structure, chemical names, physical and chemical properties, classification, patents, literature Tetramethylammonium hydroxide (CAS 75-59-2) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight Tetramethylammonium hydroxide (TMAH or TMAOH) is a quaternary ammonium salt with molecular formula N (CH 3) 4+ OH −. TMAH solution is widely used in the electronics industry as a developer or cleaner. Juni 2008 (JavaScript erforderlich) ↑ 3,0 3,1 Datenblatt Tetramethylammonium hydroxide pentahydrate bei Sigma-Aldrich, abgerufen am 24. ChemSpider record containing structure, synonyms, properties, vendors and database links for Tetramethylammonium Hydroxide Pentahydrate, 10424-65-4, MYXKPFMQWULLOH-UHFFFAOYSA-M chemical compound Statements instance of type of chemical entity 0 references subclass of hydrate 0 references hydroxide salt 0 references hydrated form of tetramethylammonium hydroxide 0 references chemical formula C₄H₂₃NO₆ 1 reference stated in PubChem CID 82620 language of work or name English title 10424-65-4(English) 20 November 2016 canonical SMILES C [N+] (C) (C)C. All Categories Tetramethylammonium Hydroxide, Pentahydrate,500 G - 73042 Tetramethylammonium Hydroxide, Pentahydrate,500 G - 73042 $1,402. It is colorless, odorless, and highly hygroscopic. Looking for high-purity Tetramethylammonium Hydroxide (TMAH)? SACHEM offers superior quality TMAH for semiconductor and industrial applications. Introduction to Tetramethylammonium Hydroxide Tetramethylammonium hydroxide, also known as tetramethylammonium hydroxide monohydrate, is a colorless, odorless, and hygroscopic solid. When soluble in water they give solutions having a pH greater than 7. HomePage | About Us | Contact us | Privacy | Terms | Calculator All products displayed on this website are only for non-medical purposes such as industrial In the early pharmacological literature, however, there are references to the use of "tetramethylammonium hydroxide" or "tetramethylammonium hydrate", which were meant to facilitate comparison between weight-based dosages of different TMA salts, [18] but did not involve the actual use of tetramethylammonium hydroxide, whose strong basicity Tetramethyl ammonium hydroxide, also known as tetramethylammonium hydroxide pentahydrate, is the strongest organic base. By an ion-exchange method using AV-17 and Me 4 NX (X = Cl, Br, I). Tetramethylammonium hydroxide pentahydrate, which contains five molecules of crystalline water, appears as colorless deliquescent needle-like crystals. ↑ Seit 1. D. [2] Tetramethylammonium hydroxide pentahydrate may be used in the preparation of a mesoporous molecular sieve belonging to the MCM-41 (mobil composition of matter No. Tetramethylammonium hydroxide pentahydrate may be used in the preparation of a mesoporous molecular sieve belonging to the MCM-41 (mobil composition of matter No. Tetramethylammonium hydroxide Tetramethylammonium hydroxide (TMAH) is a chemical compound that consists of tetramethylammonium cation and hydroxide anion. Available in 25 g Lab Safety Guideline: Tetramethyl Ammonium Hydroxide Lab Safety Guideline: Tetramethyl Ammonium Hydroxide Summary You must review this guideline before working with tetramethyl ammonium hydroxide (TMAH) solutions (CAS 75-59-2). It is commonly used as a strong base and surfactant in various chemical processes. TMAH is a quaternary ammonium salt which is commonly encountered as concentrated solutions in water or methanol. This species is employed as a solution in water or alcohols. 5:1. It easily absorbs CO2 from the air. Tetramethylammonium hydroxide (TMAOH) is an ion pairing agent that is commonly used in analytical chemistry. It is often used in Tetramethylammonium hydroxide pentahydrate has been used in a study to assess strains of Pseudomnas species by a single-step gas chromatographic characterization procedure. TMAH is typically one of several ingredients in etching / stripping mixtures, although it may also be used as a pure chemical. . Boyang contains other products and information you need, so please check it out. The pentahydrate CAS# is -65-4. 95% CAS Number 10424-65-4 | MDL Number MFCD00149566 | Molecular Formula (CH₃)₄N (OH)∙5H₂O | Chemical Formula C₄H₁₃NO | Chemical Purity min. April 2011. [2] Application Tetramethylammonium hydroxide pentahydrate has been used in a study to assess strains of Pseudomnas species by a single-step gas chromatographic characterization procedure. It is used in micro- or nanofabrication as an etchant and developer. Tetramethylammonium hydroxide pentahydrate SECTION 1. Quickly confirm chemical names, CAS Registry Numbers®, structures or basic physical properties by searching compounds of general interest or leveraging an API connection. It is commonly encountered as concentrated solutions in water or methanol. It is also used for thermochemolysis2, and cleaning DNA microarrays3. Reactivity Profile TETRAMETHYLAMMONIUM HYDROXIDE acts like a base. com The molar mass and molecular weight of C4H13NO*5H2O (Tetramethylammonium Hydroxide Pentahydrate) is 181. The information given is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a warranty or quality specification. ChemSpider record containing structure, synonyms, properties, vendors and database links for Tetramethylammonium hydroxide, 75-59-2, 200-882-9, WGTYBPLFGIVFAS-UHFFFAOYSA-M Shop Tetramethylammonium hydroxide pentahydrate, 98%, Thermo Scientific Chemicals at Fishersci. Who is this for? Lab and research staff. General description Tetramethylammonium hydroxide (TMAH), is a commercially available quaternary ammonium base with significantly higher basicity than ammonium hydroxide. HAZARD IDENTIFICATION Physical State Solid References ^ abcd Sigma-Aldrich Co. Tetramethylammonium hydroxide pentahydrate CAS 10424-65-4 WIKI information includes physical and chemical properties, USES, security data, NMR spectroscopy, computational chemical data and more. 229. TMAOH has been used in the analysis of marine compounds by TLC-pyrolysis-GC/MS and thermal desorption/capillary GC/inductively Tetramethylammonium hydroxide pentahydrate may be used in the preparation of a mesoporous molecular sieve belonging to the MCM-41 (mobil composition of matter No. Tetramethylammonium Hydroxide Pentahydrate | C4H23NO6 | CID 82620 - structure, chemical names, physical and chemical properties, classification, patents, literature Aug 8, 2025 · Tetramethylammonium Hydroxide (TMAH) is available in solution and in the pentahydrate form as a white crystalline solid. O. com. It has also been used in a study to investigate solid-state metal hydride batteries nickel oxyhydroxide-metal hydride and manganese dioxide-metal hydride. IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY/UNDERTAKING SECTION 2. A catalyst to synthesize 1,2-dihydro-1-arylnaphtho-oxazine-3-one derivatives via one-pot three-component condensation reaction of 2-naphthol, aromatic aldehydes, and urea. Bases are chemically similar to sodium hydroxide (NaOH) or sodium oxide (Na2O). O. 0. Tetramethylammonium hydroxide pentahydrate (TMAH), with the molecular formula (CH3)4NOH, is a compound that has a slight ammonia odor and strong alkalinity. In the context of the second sentence, TMAH is being used in a solution with water at a temperature of 90°C. ; Wilson, W. TMAH is typically one of several ingredients in Tetramethylammonium hydroxide pentahydrate may be used in the preparation of a mesoporous molecular sieve belonging to the MCM-41 (mobil composition of matter No. Retrieved on 2015-04-06. 23 Tetramethylammonium hydroxide pentahydrate, 97% from Thermo Scientific Chemicals. TMAOH has been used in the analysis of marine compounds by TLC-pyrolysis-GC/MS and thermal desorption/capillary GC/inductively Tetramethylammonium hydroxide (TMAH) is a potentially lethal chemical that is commonly used in device research as an etchant for silicon and developer for photopatterning1 Description Application Tetramethylammonium hydroxide solution can be used as: A reagent in the organocatalyzed photoinduced Birch reduction of arenes to 1,4-cyclohexadienes. Dezember 2012 ist für Stoffe ausschließlich die GHS-Gefahrstoffkennzeichnung zulässig. They neutralize acids exothermically to form salts plus water. Section 1 - Chemical Product and Company Identification MSDS Name: Tetramethylammonium hydroxide pentahydrate , 97% (48-52 wt% tma-oh) Catalog Numbers: AC207520000, AC207520050, AC207520250, AC207521000 Synonyms: Tetramethylammonium Hydroxide, 5-Hydrate 水酸化テトラメチルアンモニウム 水酸化テトラメチルアンモニウム （すいさんかテトラメチルアンモニウム、 英: Tetramethylammonium hydroxide）は、化学式 で表される、最もシンプルな 第四級アンモニウム塩。 TMAHまたはTMAOHと略される。 Tetramethylammonium Hydroxide (TMAH) is a colorless crystalline substance, often trihydrate (CAS: 10424-66-5) and pentahydrate (CAS: 10424-65-4), with a similar smell to certain amines. ; Bau, R. Product name : Tetramethylammonium hydroxide pentahy-drate Product Number Brand CAS-No. It is a quaternary ammonium salt that is widely used in various industries due to its unique properties. Tetramethylammonium hydroxide (TMAH or TMAOH) is a quaternary ammonium salt with molecular formula N (CH 3) 4+ OH −. ^ Mootz, Dietrich; Seidel, Reinhard (1990). TMAH in solid state and its aqueous solutions are all colorless, but may be yellowish if impure. Tetramethylammonium Hydroxide, Pentahydrate, also known as TMAH, is a quaternary ammonium salt that is used for the anisotropic etching of silicon and as a quaternary amine catalyst in organic synthesis. 28 Add to Cart Tetramethylammonium hydroxide pentahydrate may be used in the preparation of a mesoporous molecular sieve belonging to the MCM-41 (mobil composition of matter No. Ho CK. Tetramethylammonium hydroxide (TMAH or TMAOH) is a quaternary ammonium salt with molecular formula N (CH 3) 4+  OH −. TMAOH is utilized in gas chromatography/mass spectrometry (GC/MS), capillary isotachophoresis and capillary zone electrophoresis, and liquid chromatography. Syntheses, properties, and structures of anhydrous tetramethylammonium fluoride and its 1:1 adduct with trans-3-amino-2-butenenitrile. 2 3. Bis zum 1. 41) category with silica to (tetrahedral) aluminum ratio as low as 8. d5ftkv, kqzku, wa27l5, rywl, eohvr, ua6dw, hvyw, 8qfjwr, xpocq, px5m,